Merge branch 'master' into core-java-move-3
This commit is contained in:
Josh Cummings
GitHub
commit
25e5b24f1a
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@ -0,0 +1,30 @@
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package com.baeldung.algorithms.astar;
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import java.util.Map;
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import java.util.Set;
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import java.util.stream.Collectors;
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public class Graph<T extends GraphNode> {
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private final Set<T> nodes;
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private final Map<String, Set<String>> connections;
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public Graph(Set<T> nodes, Map<String, Set<String>> connections) {
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this.nodes = nodes;
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this.connections = connections;
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}
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public T getNode(String id) {
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return nodes.stream()
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.filter(node -> node.getId().equals(id))
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.findFirst()
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.orElseThrow(() -> new IllegalArgumentException("No node found with ID"));
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}
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public Set<T> getConnections(T node) {
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return connections.get(node.getId()).stream()
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.map(this::getNode)
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.collect(Collectors.toSet());
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}
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}
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@ -0,0 +1,5 @@
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package com.baeldung.algorithms.astar;
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public interface GraphNode {
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String getId();
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}
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@ -0,0 +1,66 @@
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package com.baeldung.algorithms.astar;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.PriorityQueue;
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import java.util.Queue;
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import java.util.stream.Collectors;
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public class RouteFinder<T extends GraphNode> {
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private final Graph<T> graph;
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private final Scorer<T> nextNodeScorer;
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private final Scorer<T> targetScorer;
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public RouteFinder(Graph<T> graph, Scorer<T> nextNodeScorer, Scorer<T> targetScorer) {
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this.graph = graph;
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this.nextNodeScorer = nextNodeScorer;
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this.targetScorer = targetScorer;
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}
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public List<T> findRoute(T from, T to) {
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Map<T, RouteNode<T>> allNodes = new HashMap<>();
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Queue<RouteNode> openSet = new PriorityQueue<>();
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RouteNode<T> start = new RouteNode<>(from, null, 0d, targetScorer.computeCost(from, to));
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allNodes.put(from, start);
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openSet.add(start);
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while (!openSet.isEmpty()) {
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System.out.println("Open Set contains: " + openSet.stream().map(RouteNode::getCurrent).collect(Collectors.toSet()));
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RouteNode<T> next = openSet.poll();
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System.out.println("Looking at node: " + next);
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if (next.getCurrent().equals(to)) {
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System.out.println("Found our destination!");
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List<T> route = new ArrayList<>();
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RouteNode<T> current = next;
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do {
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route.add(0, current.getCurrent());
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current = allNodes.get(current.getPrevious());
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} while (current != null);
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System.out.println("Route: " + route);
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return route;
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}
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graph.getConnections(next.getCurrent()).forEach(connection -> {
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double newScore = next.getRouteScore() + nextNodeScorer.computeCost(next.getCurrent(), connection);
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RouteNode<T> nextNode = allNodes.getOrDefault(connection, new RouteNode<>(connection));
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allNodes.put(connection, nextNode);
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if (nextNode.getRouteScore() > newScore) {
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nextNode.setPrevious(next.getCurrent());
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nextNode.setRouteScore(newScore);
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nextNode.setEstimatedScore(newScore + targetScorer.computeCost(connection, to));
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openSet.add(nextNode);
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System.out.println("Found a better route to node: " + nextNode);
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}
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});
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}
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throw new IllegalStateException("No route found");
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}
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}
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@ -0,0 +1,67 @@
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package com.baeldung.algorithms.astar;
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import java.util.StringJoiner;
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class RouteNode<T extends GraphNode> implements Comparable<RouteNode> {
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private final T current;
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private T previous;
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private double routeScore;
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private double estimatedScore;
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RouteNode(T current) {
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this(current, null, Double.POSITIVE_INFINITY, Double.POSITIVE_INFINITY);
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}
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RouteNode(T current, T previous, double routeScore, double estimatedScore) {
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this.current = current;
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this.previous = previous;
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this.routeScore = routeScore;
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this.estimatedScore = estimatedScore;
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}
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T getCurrent() {
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return current;
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}
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T getPrevious() {
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return previous;
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}
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double getRouteScore() {
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return routeScore;
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}
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double getEstimatedScore() {
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return estimatedScore;
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}
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void setPrevious(T previous) {
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this.previous = previous;
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}
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void setRouteScore(double routeScore) {
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this.routeScore = routeScore;
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}
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void setEstimatedScore(double estimatedScore) {
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this.estimatedScore = estimatedScore;
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}
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@Override
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public int compareTo(RouteNode other) {
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if (this.estimatedScore > other.estimatedScore) {
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return 1;
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} else if (this.estimatedScore < other.estimatedScore) {
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return -1;
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} else {
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return 0;
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}
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}
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@Override
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public String toString() {
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return new StringJoiner(", ", RouteNode.class.getSimpleName() + "[", "]").add("current=" + current)
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.add("previous=" + previous).add("routeScore=" + routeScore).add("estimatedScore=" + estimatedScore)
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.toString();
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}
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}
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@ -0,0 +1,5 @@
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package com.baeldung.algorithms.astar;
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public interface Scorer<T extends GraphNode> {
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double computeCost(T from, T to);
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}
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package com.baeldung.algorithms.astar.underground;
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import com.baeldung.algorithms.astar.Scorer;
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public class HaversineScorer implements Scorer<Station> {
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@Override
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public double computeCost(Station from, Station to) {
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double R = 6372.8; // In kilometers
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double dLat = Math.toRadians(to.getLatitude() - from.getLatitude());
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double dLon = Math.toRadians(to.getLongitude() - from.getLongitude());
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double lat1 = Math.toRadians(from.getLatitude());
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double lat2 = Math.toRadians(to.getLatitude());
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double a = Math.pow(Math.sin(dLat / 2),2) + Math.pow(Math.sin(dLon / 2),2) * Math.cos(lat1) * Math.cos(lat2);
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double c = 2 * Math.asin(Math.sqrt(a));
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return R * c;
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}
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}
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@ -0,0 +1,643 @@
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package com.baeldung.algorithms.astar.underground;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import java.util.stream.Collectors;
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import java.util.stream.Stream;
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import com.baeldung.algorithms.astar.Graph;
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import com.baeldung.algorithms.astar.RouteFinder;
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import org.junit.Before;
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import org.junit.Test;
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public class RouteFinderIntegrationTest {
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private Graph<Station> underground;
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private RouteFinder<Station> routeFinder;
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@Before
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public void setUp() throws Exception {
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Set<Station> stations = new HashSet<>();
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Map<String, Set<String>> connections = new HashMap<>();
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stations.add(new Station("1", "Acton Town", 51.5028, -0.2801));
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stations.add(new Station("2", "Aldgate", 51.5143, -0.0755));
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stations.add(new Station("3", "Aldgate East", 51.5154, -0.0726));
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stations.add(new Station("4", "All Saints", 51.5107, -0.013));
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stations.add(new Station("5", "Alperton", 51.5407, -0.2997));
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stations.add(new Station("6", "Amersham", 51.6736, -0.607));
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stations.add(new Station("7", "Angel", 51.5322, -0.1058));
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stations.add(new Station("8", "Archway", 51.5653, -0.1353));
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stations.add(new Station("9", "Arnos Grove", 51.6164, -0.1331));
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stations.add(new Station("10", "Arsenal", 51.5586, -0.1059));
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stations.add(new Station("11", "Baker Street", 51.5226, -0.1571));
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stations.add(new Station("12", "Balham", 51.4431, -0.1525));
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stations.add(new Station("13", "Bank", 51.5133, -0.0886));
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stations.add(new Station("14", "Barbican", 51.5204, -0.0979));
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stations.add(new Station("15", "Barking", 51.5396, 0.081));
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stations.add(new Station("16", "Barkingside", 51.5856, 0.0887));
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stations.add(new Station("17", "Barons Court", 51.4905, -0.2139));
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stations.add(new Station("18", "Bayswater", 51.5121, -0.1879));
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stations.add(new Station("19", "Beckton", 51.5148, 0.0613));
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stations.add(new Station("20", "Beckton Park", 51.5087, 0.055));
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stations.add(new Station("21", "Becontree", 51.5403, 0.127));
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stations.add(new Station("22", "Belsize Park", 51.5504, -0.1642));
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stations.add(new Station("23", "Bermondsey", 51.4979, -0.0637));
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stations.add(new Station("24", "Bethnal Green", 51.527, -0.0549));
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stations.add(new Station("25", "Blackfriars", 51.512, -0.1031));
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stations.add(new Station("26", "Blackhorse Road", 51.5867, -0.0417));
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stations.add(new Station("27", "Blackwall", 51.5079, -0.0066));
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stations.add(new Station("28", "Bond Street", 51.5142, -0.1494));
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stations.add(new Station("29", "Borough", 51.5011, -0.0943));
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stations.add(new Station("30", "Boston Manor", 51.4956, -0.325));
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stations.add(new Station("31", "Bounds Green", 51.6071, -0.1243));
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stations.add(new Station("32", "Bow Church", 51.5273, -0.0208));
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stations.add(new Station("33", "Bow Road", 51.5269, -0.0247));
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stations.add(new Station("34", "Brent Cross", 51.5766, -0.2136));
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stations.add(new Station("35", "Brixton", 51.4627, -0.1145));
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stations.add(new Station("36", "Bromley-By-Bow", 51.5248, -0.0119));
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stations.add(new Station("37", "Buckhurst Hill", 51.6266, 0.0471));
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stations.add(new Station("38", "Burnt Oak", 51.6028, -0.2641));
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stations.add(new Station("39", "Caledonian Road", 51.5481, -0.1188));
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stations.add(new Station("40", "Camden Town", 51.5392, -0.1426));
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stations.add(new Station("41", "Canada Water", 51.4982, -0.0502));
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stations.add(new Station("42", "Canary Wharf", 51.5051, -0.0209));
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stations.add(new Station("43", "Canning Town", 51.5147, 0.0082));
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stations.add(new Station("44", "Cannon Street", 51.5113, -0.0904));
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stations.add(new Station("45", "Canons Park", 51.6078, -0.2947));
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stations.add(new Station("46", "Chalfont & Latimer", 51.6679, -0.561));
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stations.add(new Station("47", "Chalk Farm", 51.5441, -0.1538));
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stations.add(new Station("48", "Chancery Lane", 51.5185, -0.1111));
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stations.add(new Station("49", "Charing Cross", 51.508, -0.1247));
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stations.add(new Station("50", "Chesham", 51.7052, -0.611));
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stations.add(new Station("51", "Chigwell", 51.6177, 0.0755));
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stations.add(new Station("52", "Chiswick Park", 51.4946, -0.2678));
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stations.add(new Station("53", "Chorleywood", 51.6543, -0.5183));
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stations.add(new Station("54", "Clapham Common", 51.4618, -0.1384));
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stations.add(new Station("55", "Clapham North", 51.4649, -0.1299));
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stations.add(new Station("56", "Clapham South", 51.4527, -0.148));
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stations.add(new Station("57", "Cockfosters", 51.6517, -0.1496));
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stations.add(new Station("58", "Colindale", 51.5955, -0.2502));
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stations.add(new Station("59", "Colliers Wood", 51.418, -0.1778));
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stations.add(new Station("60", "Covent Garden", 51.5129, -0.1243));
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stations.add(new Station("61", "Crossharbour & London Arena", 51.4957, -0.0144));
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stations.add(new Station("62", "Croxley", 51.647, -0.4412));
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stations.add(new Station("63", "Custom House", 51.5095, 0.0276));
|
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stations.add(new Station("64", "Cutty Sark", 51.4827, -0.0096));
|
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stations.add(new Station("65", "Cyprus", 51.5085, 0.064));
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stations.add(new Station("66", "Dagenham East", 51.5443, 0.1655));
|
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stations.add(new Station("67", "Dagenham Heathway", 51.5417, 0.1469));
|
||||
stations.add(new Station("68", "Debden", 51.6455, 0.0838));
|
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stations.add(new Station("69", "Deptford Bridge", 51.474, -0.0216));
|
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stations.add(new Station("70", "Devons Road", 51.5223, -0.0173));
|
||||
stations.add(new Station("71", "Dollis Hill", 51.552, -0.2387));
|
||||
stations.add(new Station("72", "Ealing Broadway", 51.5152, -0.3017));
|
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stations.add(new Station("73", "Ealing Common", 51.5101, -0.2882));
|
||||
stations.add(new Station("74", "Earl's Court", 51.492, -0.1973));
|
||||
stations.add(new Station("75", "Eastcote", 51.5765, -0.397));
|
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stations.add(new Station("76", "East Acton", 51.5168, -0.2474));
|
||||
stations.add(new Station("77", "East Finchley", 51.5874, -0.165));
|
||||
stations.add(new Station("78", "East Ham", 51.5394, 0.0518));
|
||||
stations.add(new Station("79", "East India", 51.5093, -0.0021));
|
||||
stations.add(new Station("80", "East Putney", 51.4586, -0.2112));
|
||||
stations.add(new Station("81", "Edgware", 51.6137, -0.275));
|
||||
stations.add(new Station("82", "Edgware Road (B)", 51.5199, -0.1679));
|
||||
stations.add(new Station("83", "Edgware Road (C)", 51.5203, -0.17));
|
||||
stations.add(new Station("84", "Elephant & Castle", 51.4943, -0.1001));
|
||||
stations.add(new Station("85", "Elm Park", 51.5496, 0.1977));
|
||||
stations.add(new Station("86", "Elverson Road", 51.4693, -0.0174));
|
||||
stations.add(new Station("87", "Embankment", 51.5074, -0.1223));
|
||||
stations.add(new Station("88", "Epping", 51.6937, 0.1139));
|
||||
stations.add(new Station("89", "Euston", 51.5282, -0.1337));
|
||||
stations.add(new Station("90", "Euston Square", 51.526, -0.1359));
|
||||
stations.add(new Station("91", "Fairlop", 51.596, 0.0912));
|
||||
stations.add(new Station("92", "Farringdon", 51.5203, -0.1053));
|
||||
stations.add(new Station("93", "Finchley Central", 51.6012, -0.1932));
|
||||
stations.add(new Station("94", "Finchley Road", 51.5472, -0.1803));
|
||||
stations.add(new Station("95", "Finsbury Park", 51.5642, -0.1065));
|
||||
stations.add(new Station("96", "Fulham Broadway", 51.4804, -0.195));
|
||||
stations.add(new Station("97", "Gallions Reach", 51.5096, 0.0716));
|
||||
stations.add(new Station("98", "Gants Hill", 51.5765, 0.0663));
|
||||
stations.add(new Station("99", "Gloucester Road", 51.4945, -0.1829));
|
||||
stations.add(new Station("100", "Golders Green", 51.5724, -0.1941));
|
||||
stations.add(new Station("101", "Goldhawk Road", 51.5018, -0.2267));
|
||||
stations.add(new Station("102", "Goodge Street", 51.5205, -0.1347));
|
||||
stations.add(new Station("103", "Grange Hill", 51.6132, 0.0923));
|
||||
stations.add(new Station("104", "Great Portland Street", 51.5238, -0.1439));
|
||||
stations.add(new Station("105", "Greenford", 51.5423, -0.3456));
|
||||
stations.add(new Station("106", "Greenwich", 51.4781, -0.0149));
|
||||
stations.add(new Station("107", "Green Park", 51.5067, -0.1428));
|
||||
stations.add(new Station("108", "Gunnersbury", 51.4915, -0.2754));
|
||||
stations.add(new Station("109", "Hainault", 51.603, 0.0933));
|
||||
stations.add(new Station("110", "Hammersmith", 51.4936, -0.2251));
|
||||
stations.add(new Station("111", "Hampstead", 51.5568, -0.178));
|
||||
stations.add(new Station("112", "Hanger Lane", 51.5302, -0.2933));
|
||||
stations.add(new Station("113", "Harlesden", 51.5362, -0.2575));
|
||||
stations.add(new Station("114", "Harrow & Wealdston", 51.5925, -0.3351));
|
||||
stations.add(new Station("115", "Harrow-on-the-Hill", 51.5793, -0.3366));
|
||||
stations.add(new Station("116", "Hatton Cross", 51.4669, -0.4227));
|
||||
stations.add(new Station("117", "Heathrow Terminals 1, 2 & 3", 51.4713, -0.4524));
|
||||
stations.add(new Station("118", "Heathrow Terminal 4", 51.4598, -0.4476));
|
||||
stations.add(new Station("119", "Hendon Central", 51.5829, -0.2259));
|
||||
stations.add(new Station("120", "Heron Quays", 51.5033, -0.0215));
|
||||
stations.add(new Station("121", "High Barnet", 51.6503, -0.1943));
|
||||
stations.add(new Station("122", "High Street Kensington", 51.5009, -0.1925));
|
||||
stations.add(new Station("123", "Highbury & Islington", 51.546, -0.104));
|
||||
stations.add(new Station("124", "Highgate", 51.5777, -0.1458));
|
||||
stations.add(new Station("125", "Hillingdon", 51.5538, -0.4499));
|
||||
stations.add(new Station("126", "Holborn", 51.5174, -0.12));
|
||||
stations.add(new Station("127", "Holland Park", 51.5075, -0.206));
|
||||
stations.add(new Station("128", "Holloway Road", 51.5526, -0.1132));
|
||||
stations.add(new Station("129", "Hornchurch", 51.5539, 0.2184));
|
||||
stations.add(new Station("130", "Hounslow Central", 51.4713, -0.3665));
|
||||
stations.add(new Station("131", "Hounslow East", 51.4733, -0.3564));
|
||||
stations.add(new Station("132", "Hounslow West", 51.4734, -0.3855));
|
||||
stations.add(new Station("133", "Hyde Park Corner", 51.5027, -0.1527));
|
||||
stations.add(new Station("134", "Ickenham", 51.5619, -0.4421));
|
||||
stations.add(new Station("135", "Island Gardens", 51.4871, -0.0101));
|
||||
stations.add(new Station("136", "Kennington", 51.4884, -0.1053));
|
||||
stations.add(new Station("137", "Kensal Green", 51.5304, -0.225));
|
||||
stations.add(new Station("138", "Kensington (Olympia)", 51.4983, -0.2106));
|
||||
stations.add(new Station("139", "Kentish Town", 51.5507, -0.1402));
|
||||
stations.add(new Station("140", "Kenton", 51.5816, -0.3162));
|
||||
stations.add(new Station("141", "Kew Gardens", 51.477, -0.285));
|
||||
stations.add(new Station("142", "Kilburn", 51.5471, -0.2047));
|
||||
stations.add(new Station("143", "Kilburn Park", 51.5351, -0.1939));
|
||||
stations.add(new Station("144", "Kingsbury", 51.5846, -0.2786));
|
||||
stations.add(new Station("145", "King's Cross St. Pancras", 51.5308, -0.1238));
|
||||
stations.add(new Station("146", "Knightsbridge", 51.5015, -0.1607));
|
||||
stations.add(new Station("147", "Ladbroke Grove", 51.5172, -0.2107));
|
||||
stations.add(new Station("148", "Lambeth North", 51.4991, -0.1115));
|
||||
stations.add(new Station("149", "Lancaster Gate", 51.5119, -0.1756));
|
||||
stations.add(new Station("150", "Latimer Road", 51.5139, -0.2172));
|
||||
stations.add(new Station("151", "Leicester Square", 51.5113, -0.1281));
|
||||
stations.add(new Station("152", "Lewisham", 51.4657, -0.0142));
|
||||
stations.add(new Station("153", "Leyton", 51.5566, -0.0053));
|
||||
stations.add(new Station("154", "Leytonstone", 51.5683, 0.0083));
|
||||
stations.add(new Station("155", "Limehouse", 51.5123, -0.0396));
|
||||
stations.add(new Station("156", "Liverpool Street", 51.5178, -0.0823));
|
||||
stations.add(new Station("157", "London Bridge", 51.5052, -0.0864));
|
||||
stations.add(new Station("158", "Loughton", 51.6412, 0.0558));
|
||||
stations.add(new Station("159", "Maida Vale", 51.53, -0.1854));
|
||||
stations.add(new Station("160", "Manor House", 51.5712, -0.0958));
|
||||
stations.add(new Station("161", "Mansion House", 51.5122, -0.094));
|
||||
stations.add(new Station("162", "Marble Arch", 51.5136, -0.1586));
|
||||
stations.add(new Station("163", "Marylebone", 51.5225, -0.1631));
|
||||
stations.add(new Station("164", "Mile End", 51.5249, -0.0332));
|
||||
stations.add(new Station("165", "Mill Hill East", 51.6082, -0.2103));
|
||||
stations.add(new Station("166", "Monument", 51.5108, -0.0863));
|
||||
stations.add(new Station("167", "Moorgate", 51.5186, -0.0886));
|
||||
stations.add(new Station("168", "Moor Park", 51.6294, -0.432));
|
||||
stations.add(new Station("169", "Morden", 51.4022, -0.1948));
|
||||
stations.add(new Station("170", "Mornington Crescent", 51.5342, -0.1387));
|
||||
stations.add(new Station("171", "Mudchute", 51.4902, -0.0145));
|
||||
stations.add(new Station("172", "Neasden", 51.5542, -0.2503));
|
||||
stations.add(new Station("173", "Newbury Park", 51.5756, 0.0899));
|
||||
stations.add(new Station("174", "New Cross", 51.4767, -0.0327));
|
||||
stations.add(new Station("175", "New Cross Gate", 51.4757, -0.0402));
|
||||
stations.add(new Station("176", "Northfields", 51.4995, -0.3142));
|
||||
stations.add(new Station("177", "Northolt", 51.5483, -0.3687));
|
||||
stations.add(new Station("178", "Northwick Park", 51.5784, -0.3184));
|
||||
stations.add(new Station("179", "Northwood", 51.6111, -0.424));
|
||||
stations.add(new Station("180", "Northwood Hills", 51.6004, -0.4092));
|
||||
stations.add(new Station("181", "North Acton", 51.5237, -0.2597));
|
||||
stations.add(new Station("182", "North Ealing", 51.5175, -0.2887));
|
||||
stations.add(new Station("183", "North Greenwich", 51.5005, 0.0039));
|
||||
stations.add(new Station("184", "North Harrow", 51.5846, -0.3626));
|
||||
stations.add(new Station("185", "North Wembley", 51.5621, -0.3034));
|
||||
stations.add(new Station("186", "Notting Hill Gate", 51.5094, -0.1967));
|
||||
stations.add(new Station("187", "Oakwood", 51.6476, -0.1318));
|
||||
stations.add(new Station("188", "Old Street", 51.5263, -0.0873));
|
||||
stations.add(new Station("189", "Osterley", 51.4813, -0.3522));
|
||||
stations.add(new Station("190", "Oval", 51.4819, -0.113));
|
||||
stations.add(new Station("191", "Oxford Circus", 51.515, -0.1415));
|
||||
stations.add(new Station("192", "Paddington", 51.5154, -0.1755));
|
||||
stations.add(new Station("193", "Park Royal", 51.527, -0.2841));
|
||||
stations.add(new Station("194", "Parsons Green", 51.4753, -0.2011));
|
||||
stations.add(new Station("195", "Perivale", 51.5366, -0.3232));
|
||||
stations.add(new Station("196", "Picadilly Circus", 51.5098, -0.1342));
|
||||
stations.add(new Station("197", "Pimlico", 51.4893, -0.1334));
|
||||
stations.add(new Station("198", "Pinner", 51.5926, -0.3805));
|
||||
stations.add(new Station("199", "Plaistow", 51.5313, 0.0172));
|
||||
stations.add(new Station("200", "Poplar", 51.5077, -0.0173));
|
||||
stations.add(new Station("201", "Preston Road", 51.572, -0.2954));
|
||||
stations.add(new Station("202", "Prince Regent", 51.5093, 0.0336));
|
||||
stations.add(new Station("203", "Pudding Mill Lane", 51.5343, -0.0139));
|
||||
stations.add(new Station("204", "Putney Bridge", 51.4682, -0.2089));
|
||||
stations.add(new Station("205", "Queen's Park", 51.5341, -0.2047));
|
||||
stations.add(new Station("206", "Queensbury", 51.5942, -0.2861));
|
||||
stations.add(new Station("207", "Queensway", 51.5107, -0.1877));
|
||||
stations.add(new Station("208", "Ravenscourt Park", 51.4942, -0.2359));
|
||||
stations.add(new Station("209", "Rayners Lane", 51.5753, -0.3714));
|
||||
stations.add(new Station("210", "Redbridge", 51.5763, 0.0454));
|
||||
stations.add(new Station("211", "Regent's Park", 51.5234, -0.1466));
|
||||
stations.add(new Station("212", "Richmond", 51.4633, -0.3013));
|
||||
stations.add(new Station("213", "Rickmansworth", 51.6404, -0.4733));
|
||||
stations.add(new Station("214", "Roding Valley", 51.6171, 0.0439));
|
||||
stations.add(new Station("215", "Rotherhithe", 51.501, -0.0525));
|
||||
stations.add(new Station("216", "Royal Albert", 51.5084, 0.0465));
|
||||
stations.add(new Station("217", "Royal Oak", 51.519, -0.188));
|
||||
stations.add(new Station("218", "Royal Victoria", 51.5091, 0.0181));
|
||||
stations.add(new Station("219", "Ruislip", 51.5715, -0.4213));
|
||||
stations.add(new Station("220", "Ruislip Gardens", 51.5606, -0.4103));
|
||||
stations.add(new Station("221", "Ruislip Manor", 51.5732, -0.4125));
|
||||
stations.add(new Station("222", "Russell Square", 51.523, -0.1244));
|
||||
stations.add(new Station("223", "Seven Sisters", 51.5822, -0.0749));
|
||||
stations.add(new Station("224", "Shadwell", 51.5117, -0.056));
|
||||
stations.add(new Station("225", "Shepherd's Bush (C)", 51.5046, -0.2187));
|
||||
stations.add(new Station("226", "Shepherd's Bush (H)", 51.5058, -0.2265));
|
||||
stations.add(new Station("227", "Shoreditch", 51.5227, -0.0708));
|
||||
stations.add(new Station("228", "Sloane Square", 51.4924, -0.1565));
|
||||
stations.add(new Station("229", "Snaresbrook", 51.5808, 0.0216));
|
||||
stations.add(new Station("230", "Southfields", 51.4454, -0.2066));
|
||||
stations.add(new Station("231", "Southgate", 51.6322, -0.128));
|
||||
stations.add(new Station("232", "Southwark", 51.501, -0.1052));
|
||||
stations.add(new Station("233", "South Ealing", 51.5011, -0.3072));
|
||||
stations.add(new Station("234", "South Harrow", 51.5646, -0.3521));
|
||||
stations.add(new Station("235", "South Kensington", 51.4941, -0.1738));
|
||||
stations.add(new Station("236", "South Kenton", 51.5701, -0.3081));
|
||||
stations.add(new Station("237", "South Quay", 51.5007, -0.0191));
|
||||
stations.add(new Station("238", "South Ruislip", 51.5569, -0.3988));
|
||||
stations.add(new Station("239", "South Wimbledon", 51.4154, -0.1919));
|
||||
stations.add(new Station("240", "South Woodford", 51.5917, 0.0275));
|
||||
stations.add(new Station("241", "Stamford Brook", 51.495, -0.2459));
|
||||
stations.add(new Station("242", "Stanmore", 51.6194, -0.3028));
|
||||
stations.add(new Station("243", "Stepney Green", 51.5221, -0.047));
|
||||
stations.add(new Station("244", "Stockwell", 51.4723, -0.123));
|
||||
stations.add(new Station("245", "Stonebridge Park", 51.5439, -0.2759));
|
||||
stations.add(new Station("246", "Stratford", 51.5416, -0.0042));
|
||||
stations.add(new Station("247", "St. James's Park", 51.4994, -0.1335));
|
||||
stations.add(new Station("248", "St. John's Wood", 51.5347, -0.174));
|
||||
stations.add(new Station("249", "St. Paul's", 51.5146, -0.0973));
|
||||
stations.add(new Station("250", "Sudbury Hill", 51.5569, -0.3366));
|
||||
stations.add(new Station("251", "Sudbury Town", 51.5507, -0.3156));
|
||||
stations.add(new Station("252", "Surrey Quays", 51.4933, -0.0478));
|
||||
stations.add(new Station("253", "Swiss Cottage", 51.5432, -0.1738));
|
||||
stations.add(new Station("254", "Temple", 51.5111, -0.1141));
|
||||
stations.add(new Station("255", "Theydon Bois", 51.6717, 0.1033));
|
||||
stations.add(new Station("256", "Tooting Bec", 51.4361, -0.1598));
|
||||
stations.add(new Station("257", "Tooting Broadway", 51.4275, -0.168));
|
||||
stations.add(new Station("258", "Tottenham Court Road", 51.5165, -0.131));
|
||||
stations.add(new Station("259", "Tottenham Hale", 51.5882, -0.0594));
|
||||
stations.add(new Station("260", "Totteridge & Whetstone", 51.6302, -0.1791));
|
||||
stations.add(new Station("261", "Tower Gateway", 51.5106, -0.0743));
|
||||
stations.add(new Station("262", "Tower Hill", 51.5098, -0.0766));
|
||||
stations.add(new Station("263", "Tufnell Park", 51.5567, -0.1374));
|
||||
stations.add(new Station("264", "Turnham Green", 51.4951, -0.2547));
|
||||
stations.add(new Station("265", "Turnpike Lane", 51.5904, -0.1028));
|
||||
stations.add(new Station("266", "Upminster", 51.559, 0.251));
|
||||
stations.add(new Station("267", "Upminster Bridge", 51.5582, 0.2343));
|
||||
stations.add(new Station("268", "Upney", 51.5385, 0.1014));
|
||||
stations.add(new Station("269", "Upton Park", 51.5352, 0.0343));
|
||||
stations.add(new Station("270", "Uxbridge", 51.5463, -0.4786));
|
||||
stations.add(new Station("271", "Vauxhall", 51.4861, -0.1253));
|
||||
stations.add(new Station("272", "Victoria", 51.4965, -0.1447));
|
||||
stations.add(new Station("273", "Walthamstow Central", 51.583, -0.0195));
|
||||
stations.add(new Station("274", "Wanstead", 51.5775, 0.0288));
|
||||
stations.add(new Station("275", "Wapping", 51.5043, -0.0558));
|
||||
stations.add(new Station("276", "Warren Street", 51.5247, -0.1384));
|
||||
stations.add(new Station("277", "Warwick Avenue", 51.5235, -0.1835));
|
||||
stations.add(new Station("278", "Waterloo", 51.5036, -0.1143));
|
||||
stations.add(new Station("279", "Watford", 51.6573, -0.4177));
|
||||
stations.add(new Station("280", "Wembley Central", 51.5519, -0.2963));
|
||||
stations.add(new Station("281", "Wembley Park", 51.5635, -0.2795));
|
||||
stations.add(new Station("282", "Westbourne Park", 51.521, -0.2011));
|
||||
stations.add(new Station("283", "Westferry", 51.5097, -0.0265));
|
||||
stations.add(new Station("284", "Westminster", 51.501, -0.1254));
|
||||
stations.add(new Station("285", "West Acton", 51.518, -0.2809));
|
||||
stations.add(new Station("286", "West Brompton", 51.4872, -0.1953));
|
||||
stations.add(new Station("287", "West Finchley", 51.6095, -0.1883));
|
||||
stations.add(new Station("288", "West Ham", 51.5287, 0.0056));
|
||||
stations.add(new Station("289", "West Hampstead", 51.5469, -0.1906));
|
||||
stations.add(new Station("290", "West Harrow", 51.5795, -0.3533));
|
||||
stations.add(new Station("291", "West India Quay", 51.507, -0.0203));
|
||||
stations.add(new Station("292", "West Kensington", 51.4907, -0.2065));
|
||||
stations.add(new Station("293", "West Ruislip", 51.5696, -0.4376));
|
||||
stations.add(new Station("294", "Whitechapel", 51.5194, -0.0612));
|
||||
stations.add(new Station("295", "White City", 51.512, -0.2239));
|
||||
stations.add(new Station("296", "Willesden Green", 51.5492, -0.2215));
|
||||
stations.add(new Station("297", "Willesden Junction", 51.5326, -0.2478));
|
||||
stations.add(new Station("298", "Wimbledon", 51.4214, -0.2064));
|
||||
stations.add(new Station("299", "Wimbledon Park", 51.4343, -0.1992));
|
||||
stations.add(new Station("300", "Woodford", 51.607, 0.0341));
|
||||
stations.add(new Station("301", "Woodside Park", 51.6179, -0.1856));
|
||||
stations.add(new Station("302", "Wood Green", 51.5975, -0.1097));
|
||||
|
||||
connections.put("1", Stream.of("52","73","73","233","264").collect(Collectors.toSet()));
|
||||
connections.put("2", Stream.of("156","262","156").collect(Collectors.toSet()));
|
||||
connections.put("3", Stream.of("262","294","156","294").collect(Collectors.toSet()));
|
||||
connections.put("4", Stream.of("70","200").collect(Collectors.toSet()));
|
||||
connections.put("5", Stream.of("193","251").collect(Collectors.toSet()));
|
||||
connections.put("6", Stream.of("46").collect(Collectors.toSet()));
|
||||
connections.put("7", Stream.of("145","188").collect(Collectors.toSet()));
|
||||
connections.put("8", Stream.of("124","263").collect(Collectors.toSet()));
|
||||
connections.put("9", Stream.of("31","231").collect(Collectors.toSet()));
|
||||
connections.put("10", Stream.of("95","128").collect(Collectors.toSet()));
|
||||
connections.put("11", Stream.of("163","211","83","104","83","104","28","248","94","104").collect(Collectors.toSet()));
|
||||
connections.put("12", Stream.of("56","256").collect(Collectors.toSet()));
|
||||
connections.put("13", Stream.of("156","249","224","157","167","278").collect(Collectors.toSet()));
|
||||
connections.put("14", Stream.of("92","167","92","167","92","167").collect(Collectors.toSet()));
|
||||
connections.put("15", Stream.of("78","268","78").collect(Collectors.toSet()));
|
||||
connections.put("16", Stream.of("91","173").collect(Collectors.toSet()));
|
||||
connections.put("17", Stream.of("110","292","74","110").collect(Collectors.toSet()));
|
||||
connections.put("18", Stream.of("186","192","186","192").collect(Collectors.toSet()));
|
||||
connections.put("19", Stream.of("97").collect(Collectors.toSet()));
|
||||
connections.put("20", Stream.of("65","216").collect(Collectors.toSet()));
|
||||
connections.put("21", Stream.of("67","268").collect(Collectors.toSet()));
|
||||
connections.put("22", Stream.of("47","111").collect(Collectors.toSet()));
|
||||
connections.put("23", Stream.of("41","157").collect(Collectors.toSet()));
|
||||
connections.put("24", Stream.of("156","164").collect(Collectors.toSet()));
|
||||
connections.put("25", Stream.of("161","254","161","254").collect(Collectors.toSet()));
|
||||
connections.put("26", Stream.of("259","273").collect(Collectors.toSet()));
|
||||
connections.put("27", Stream.of("79","200").collect(Collectors.toSet()));
|
||||
connections.put("28", Stream.of("162","191","11","107").collect(Collectors.toSet()));
|
||||
connections.put("29", Stream.of("84","157").collect(Collectors.toSet()));
|
||||
connections.put("30", Stream.of("176","189").collect(Collectors.toSet()));
|
||||
connections.put("31", Stream.of("9","302").collect(Collectors.toSet()));
|
||||
connections.put("32", Stream.of("70","203").collect(Collectors.toSet()));
|
||||
connections.put("33", Stream.of("36","164","36","164").collect(Collectors.toSet()));
|
||||
connections.put("34", Stream.of("100","119").collect(Collectors.toSet()));
|
||||
connections.put("35", Stream.of("244").collect(Collectors.toSet()));
|
||||
connections.put("36", Stream.of("33","288","33","288").collect(Collectors.toSet()));
|
||||
connections.put("37", Stream.of("158","300").collect(Collectors.toSet()));
|
||||
connections.put("38", Stream.of("58","81").collect(Collectors.toSet()));
|
||||
connections.put("39", Stream.of("128","145").collect(Collectors.toSet()));
|
||||
connections.put("40", Stream.of("47","89","139","170").collect(Collectors.toSet()));
|
||||
connections.put("41", Stream.of("215","252","23","42").collect(Collectors.toSet()));
|
||||
connections.put("42", Stream.of("120","291","41","183").collect(Collectors.toSet()));
|
||||
connections.put("43", Stream.of("79","218","183","288").collect(Collectors.toSet()));
|
||||
connections.put("44", Stream.of("161","166","161","166").collect(Collectors.toSet()));
|
||||
connections.put("45", Stream.of("206","242").collect(Collectors.toSet()));
|
||||
connections.put("46", Stream.of("6","50","53").collect(Collectors.toSet()));
|
||||
connections.put("47", Stream.of("22","40").collect(Collectors.toSet()));
|
||||
connections.put("48", Stream.of("126","249").collect(Collectors.toSet()));
|
||||
connections.put("49", Stream.of("87","196","87","151").collect(Collectors.toSet()));
|
||||
connections.put("50", Stream.of("46").collect(Collectors.toSet()));
|
||||
connections.put("51", Stream.of("103","214").collect(Collectors.toSet()));
|
||||
connections.put("52", Stream.of("1","264").collect(Collectors.toSet()));
|
||||
connections.put("53", Stream.of("46","213").collect(Collectors.toSet()));
|
||||
connections.put("54", Stream.of("55","56").collect(Collectors.toSet()));
|
||||
connections.put("55", Stream.of("54","244").collect(Collectors.toSet()));
|
||||
connections.put("56", Stream.of("12","54").collect(Collectors.toSet()));
|
||||
connections.put("57", Stream.of("187").collect(Collectors.toSet()));
|
||||
connections.put("58", Stream.of("38","119").collect(Collectors.toSet()));
|
||||
connections.put("59", Stream.of("239","257").collect(Collectors.toSet()));
|
||||
connections.put("60", Stream.of("126","151").collect(Collectors.toSet()));
|
||||
connections.put("61", Stream.of("171","237").collect(Collectors.toSet()));
|
||||
connections.put("62", Stream.of("168","279").collect(Collectors.toSet()));
|
||||
connections.put("63", Stream.of("202","218").collect(Collectors.toSet()));
|
||||
connections.put("64", Stream.of("106","135").collect(Collectors.toSet()));
|
||||
connections.put("65", Stream.of("20","97").collect(Collectors.toSet()));
|
||||
connections.put("66", Stream.of("67","85").collect(Collectors.toSet()));
|
||||
connections.put("67", Stream.of("21","66").collect(Collectors.toSet()));
|
||||
connections.put("68", Stream.of("158","255").collect(Collectors.toSet()));
|
||||
connections.put("69", Stream.of("86","106").collect(Collectors.toSet()));
|
||||
connections.put("70", Stream.of("4","32").collect(Collectors.toSet()));
|
||||
connections.put("71", Stream.of("172","296").collect(Collectors.toSet()));
|
||||
connections.put("72", Stream.of("285","73").collect(Collectors.toSet()));
|
||||
connections.put("73", Stream.of("72","1","1","182").collect(Collectors.toSet()));
|
||||
connections.put("74", Stream.of("99","122","138","286","292","17","99").collect(Collectors.toSet()));
|
||||
connections.put("75", Stream.of("209","221","209","221").collect(Collectors.toSet()));
|
||||
connections.put("76", Stream.of("181","295").collect(Collectors.toSet()));
|
||||
connections.put("77", Stream.of("93","124").collect(Collectors.toSet()));
|
||||
connections.put("78", Stream.of("15","269","15","269").collect(Collectors.toSet()));
|
||||
connections.put("79", Stream.of("27","43").collect(Collectors.toSet()));
|
||||
connections.put("80", Stream.of("204","230").collect(Collectors.toSet()));
|
||||
connections.put("81", Stream.of("38").collect(Collectors.toSet()));
|
||||
connections.put("82", Stream.of("163","192").collect(Collectors.toSet()));
|
||||
connections.put("83", Stream.of("11","192","192","11","192").collect(Collectors.toSet()));
|
||||
connections.put("84", Stream.of("148","29","136").collect(Collectors.toSet()));
|
||||
connections.put("85", Stream.of("66","129").collect(Collectors.toSet()));
|
||||
connections.put("86", Stream.of("69","152").collect(Collectors.toSet()));
|
||||
connections.put("87", Stream.of("49","278","254","284","254","284","49","278").collect(Collectors.toSet()));
|
||||
connections.put("88", Stream.of("255").collect(Collectors.toSet()));
|
||||
connections.put("89", Stream.of("40","145","170","276","145","276").collect(Collectors.toSet()));
|
||||
connections.put("90", Stream.of("104","145","104","145","104","145").collect(Collectors.toSet()));
|
||||
connections.put("91", Stream.of("16","109").collect(Collectors.toSet()));
|
||||
connections.put("92", Stream.of("14","145","14","145","14","145").collect(Collectors.toSet()));
|
||||
connections.put("93", Stream.of("77","165","287").collect(Collectors.toSet()));
|
||||
connections.put("94", Stream.of("253","289","11","281").collect(Collectors.toSet()));
|
||||
connections.put("95", Stream.of("10","160","123","223").collect(Collectors.toSet()));
|
||||
connections.put("96", Stream.of("194","286").collect(Collectors.toSet()));
|
||||
connections.put("97", Stream.of("19","65").collect(Collectors.toSet()));
|
||||
connections.put("98", Stream.of("173","210").collect(Collectors.toSet()));
|
||||
connections.put("99", Stream.of("122","235","74","235","74","235").collect(Collectors.toSet()));
|
||||
connections.put("100", Stream.of("34","111").collect(Collectors.toSet()));
|
||||
connections.put("101", Stream.of("110","226").collect(Collectors.toSet()));
|
||||
connections.put("102", Stream.of("258","276").collect(Collectors.toSet()));
|
||||
connections.put("103", Stream.of("51","109").collect(Collectors.toSet()));
|
||||
connections.put("104", Stream.of("11","90","11","90","11","90").collect(Collectors.toSet()));
|
||||
connections.put("105", Stream.of("177","195").collect(Collectors.toSet()));
|
||||
connections.put("106", Stream.of("64","69").collect(Collectors.toSet()));
|
||||
connections.put("107", Stream.of("28","284","133","196","191","272").collect(Collectors.toSet()));
|
||||
connections.put("108", Stream.of("141","264").collect(Collectors.toSet()));
|
||||
connections.put("109", Stream.of("91","103").collect(Collectors.toSet()));
|
||||
connections.put("110", Stream.of("17","208","101","17","264").collect(Collectors.toSet()));
|
||||
connections.put("111", Stream.of("22","100").collect(Collectors.toSet()));
|
||||
connections.put("112", Stream.of("181","195").collect(Collectors.toSet()));
|
||||
connections.put("113", Stream.of("245","297").collect(Collectors.toSet()));
|
||||
connections.put("114", Stream.of("140").collect(Collectors.toSet()));
|
||||
connections.put("115", Stream.of("178","184","290").collect(Collectors.toSet()));
|
||||
connections.put("116", Stream.of("117","118","132").collect(Collectors.toSet()));
|
||||
connections.put("117", Stream.of("116","118").collect(Collectors.toSet()));
|
||||
connections.put("118", Stream.of("116","117").collect(Collectors.toSet()));
|
||||
connections.put("119", Stream.of("34","58").collect(Collectors.toSet()));
|
||||
connections.put("120", Stream.of("42","237").collect(Collectors.toSet()));
|
||||
connections.put("121", Stream.of("260").collect(Collectors.toSet()));
|
||||
connections.put("122", Stream.of("99","186","74","186").collect(Collectors.toSet()));
|
||||
connections.put("123", Stream.of("95","145").collect(Collectors.toSet()));
|
||||
connections.put("124", Stream.of("8","77").collect(Collectors.toSet()));
|
||||
connections.put("125", Stream.of("134","270","134","270").collect(Collectors.toSet()));
|
||||
connections.put("126", Stream.of("48","258","60","222").collect(Collectors.toSet()));
|
||||
connections.put("127", Stream.of("186","225").collect(Collectors.toSet()));
|
||||
connections.put("128", Stream.of("10","39").collect(Collectors.toSet()));
|
||||
connections.put("129", Stream.of("85","267").collect(Collectors.toSet()));
|
||||
connections.put("130", Stream.of("131","132").collect(Collectors.toSet()));
|
||||
connections.put("131", Stream.of("130","189").collect(Collectors.toSet()));
|
||||
connections.put("132", Stream.of("116","130").collect(Collectors.toSet()));
|
||||
connections.put("133", Stream.of("107","146").collect(Collectors.toSet()));
|
||||
connections.put("134", Stream.of("125","219","125","219").collect(Collectors.toSet()));
|
||||
connections.put("135", Stream.of("64","171").collect(Collectors.toSet()));
|
||||
connections.put("136", Stream.of("84","190","278").collect(Collectors.toSet()));
|
||||
connections.put("137", Stream.of("205","297").collect(Collectors.toSet()));
|
||||
connections.put("138", Stream.of("74").collect(Collectors.toSet()));
|
||||
connections.put("139", Stream.of("40","263").collect(Collectors.toSet()));
|
||||
connections.put("140", Stream.of("114","236").collect(Collectors.toSet()));
|
||||
connections.put("141", Stream.of("108","212").collect(Collectors.toSet()));
|
||||
connections.put("142", Stream.of("289","296").collect(Collectors.toSet()));
|
||||
connections.put("143", Stream.of("159","205").collect(Collectors.toSet()));
|
||||
connections.put("144", Stream.of("206","281").collect(Collectors.toSet()));
|
||||
connections.put("145", Stream.of("90","92","90","92","90","92","7","89","39","222","89","123").collect(Collectors.toSet()));
|
||||
connections.put("146", Stream.of("133","235").collect(Collectors.toSet()));
|
||||
connections.put("147", Stream.of("150","282").collect(Collectors.toSet()));
|
||||
connections.put("148", Stream.of("84","278").collect(Collectors.toSet()));
|
||||
connections.put("149", Stream.of("162","207").collect(Collectors.toSet()));
|
||||
connections.put("150", Stream.of("147","226").collect(Collectors.toSet()));
|
||||
connections.put("151", Stream.of("49","258","60","196").collect(Collectors.toSet()));
|
||||
connections.put("152", Stream.of("86").collect(Collectors.toSet()));
|
||||
connections.put("153", Stream.of("154","246").collect(Collectors.toSet()));
|
||||
connections.put("154", Stream.of("153","229","274").collect(Collectors.toSet()));
|
||||
connections.put("155", Stream.of("224","283").collect(Collectors.toSet()));
|
||||
connections.put("156", Stream.of("13","24","2","167","3","167","2","167").collect(Collectors.toSet()));
|
||||
connections.put("157", Stream.of("23","232","13","29").collect(Collectors.toSet()));
|
||||
connections.put("158", Stream.of("37","68").collect(Collectors.toSet()));
|
||||
connections.put("159", Stream.of("143","277").collect(Collectors.toSet()));
|
||||
connections.put("160", Stream.of("95","265").collect(Collectors.toSet()));
|
||||
connections.put("161", Stream.of("25","44","25","44").collect(Collectors.toSet()));
|
||||
connections.put("162", Stream.of("28","149").collect(Collectors.toSet()));
|
||||
connections.put("163", Stream.of("11","82").collect(Collectors.toSet()));
|
||||
connections.put("164", Stream.of("24","246","33","243","33","243").collect(Collectors.toSet()));
|
||||
connections.put("165", Stream.of("93").collect(Collectors.toSet()));
|
||||
connections.put("166", Stream.of("44","262","44","262").collect(Collectors.toSet()));
|
||||
connections.put("167", Stream.of("14","156","14","156","14","156","13","188").collect(Collectors.toSet()));
|
||||
connections.put("168", Stream.of("62","179","213").collect(Collectors.toSet()));
|
||||
connections.put("169", Stream.of("239").collect(Collectors.toSet()));
|
||||
connections.put("170", Stream.of("40","89").collect(Collectors.toSet()));
|
||||
connections.put("171", Stream.of("61","135").collect(Collectors.toSet()));
|
||||
connections.put("172", Stream.of("71","281").collect(Collectors.toSet()));
|
||||
connections.put("173", Stream.of("16","98").collect(Collectors.toSet()));
|
||||
connections.put("174", Stream.of("252").collect(Collectors.toSet()));
|
||||
connections.put("175", Stream.of("252").collect(Collectors.toSet()));
|
||||
connections.put("176", Stream.of("30","233").collect(Collectors.toSet()));
|
||||
connections.put("177", Stream.of("105","238").collect(Collectors.toSet()));
|
||||
connections.put("178", Stream.of("115","201").collect(Collectors.toSet()));
|
||||
connections.put("179", Stream.of("168","180").collect(Collectors.toSet()));
|
||||
connections.put("180", Stream.of("179","198").collect(Collectors.toSet()));
|
||||
connections.put("181", Stream.of("76","112","285").collect(Collectors.toSet()));
|
||||
connections.put("182", Stream.of("73","193").collect(Collectors.toSet()));
|
||||
connections.put("183", Stream.of("42","43").collect(Collectors.toSet()));
|
||||
connections.put("184", Stream.of("115","198").collect(Collectors.toSet()));
|
||||
connections.put("185", Stream.of("236","280").collect(Collectors.toSet()));
|
||||
connections.put("186", Stream.of("127","207","18","122","18","122").collect(Collectors.toSet()));
|
||||
connections.put("187", Stream.of("57","231").collect(Collectors.toSet()));
|
||||
connections.put("188", Stream.of("7","167").collect(Collectors.toSet()));
|
||||
connections.put("189", Stream.of("30","131").collect(Collectors.toSet()));
|
||||
connections.put("190", Stream.of("136","244").collect(Collectors.toSet()));
|
||||
connections.put("191", Stream.of("196","211","28","258","107","276").collect(Collectors.toSet()));
|
||||
connections.put("192", Stream.of("82","277","18","83","18","83","83","217").collect(Collectors.toSet()));
|
||||
connections.put("193", Stream.of("5","182").collect(Collectors.toSet()));
|
||||
connections.put("194", Stream.of("96","204").collect(Collectors.toSet()));
|
||||
connections.put("195", Stream.of("105","112").collect(Collectors.toSet()));
|
||||
connections.put("196", Stream.of("49","191","107","151").collect(Collectors.toSet()));
|
||||
connections.put("197", Stream.of("271","272").collect(Collectors.toSet()));
|
||||
connections.put("198", Stream.of("180","184").collect(Collectors.toSet()));
|
||||
connections.put("199", Stream.of("269","288","269","288").collect(Collectors.toSet()));
|
||||
connections.put("200", Stream.of("4","27","283","291").collect(Collectors.toSet()));
|
||||
connections.put("201", Stream.of("178","281").collect(Collectors.toSet()));
|
||||
connections.put("202", Stream.of("63","216").collect(Collectors.toSet()));
|
||||
connections.put("203", Stream.of("32","246").collect(Collectors.toSet()));
|
||||
connections.put("204", Stream.of("80","194").collect(Collectors.toSet()));
|
||||
connections.put("205", Stream.of("137","143").collect(Collectors.toSet()));
|
||||
connections.put("206", Stream.of("45","144").collect(Collectors.toSet()));
|
||||
connections.put("207", Stream.of("149","186").collect(Collectors.toSet()));
|
||||
connections.put("208", Stream.of("110","241").collect(Collectors.toSet()));
|
||||
connections.put("209", Stream.of("75","290","75","234").collect(Collectors.toSet()));
|
||||
connections.put("210", Stream.of("98","274").collect(Collectors.toSet()));
|
||||
connections.put("211", Stream.of("11","191").collect(Collectors.toSet()));
|
||||
connections.put("212", Stream.of("141").collect(Collectors.toSet()));
|
||||
connections.put("213", Stream.of("53","168").collect(Collectors.toSet()));
|
||||
connections.put("214", Stream.of("51","300").collect(Collectors.toSet()));
|
||||
connections.put("215", Stream.of("41","275").collect(Collectors.toSet()));
|
||||
connections.put("216", Stream.of("20","202").collect(Collectors.toSet()));
|
||||
connections.put("217", Stream.of("192","282").collect(Collectors.toSet()));
|
||||
connections.put("218", Stream.of("43","63").collect(Collectors.toSet()));
|
||||
connections.put("219", Stream.of("134","221","134","221").collect(Collectors.toSet()));
|
||||
connections.put("220", Stream.of("238","293").collect(Collectors.toSet()));
|
||||
connections.put("221", Stream.of("75","219","75","219").collect(Collectors.toSet()));
|
||||
connections.put("222", Stream.of("126","145").collect(Collectors.toSet()));
|
||||
connections.put("223", Stream.of("95","259").collect(Collectors.toSet()));
|
||||
connections.put("224", Stream.of("13","155","261","275","294").collect(Collectors.toSet()));
|
||||
connections.put("225", Stream.of("127","295").collect(Collectors.toSet()));
|
||||
connections.put("226", Stream.of("101","150").collect(Collectors.toSet()));
|
||||
connections.put("227", Stream.of("294").collect(Collectors.toSet()));
|
||||
connections.put("228", Stream.of("235","272","235","272").collect(Collectors.toSet()));
|
||||
connections.put("229", Stream.of("154","240").collect(Collectors.toSet()));
|
||||
connections.put("230", Stream.of("80","299").collect(Collectors.toSet()));
|
||||
connections.put("231", Stream.of("9","187").collect(Collectors.toSet()));
|
||||
connections.put("232", Stream.of("157","278").collect(Collectors.toSet()));
|
||||
connections.put("233", Stream.of("1","176").collect(Collectors.toSet()));
|
||||
connections.put("234", Stream.of("209","250").collect(Collectors.toSet()));
|
||||
connections.put("235", Stream.of("99","228","99","228","99","146").collect(Collectors.toSet()));
|
||||
connections.put("236", Stream.of("140","185").collect(Collectors.toSet()));
|
||||
connections.put("237", Stream.of("61","120").collect(Collectors.toSet()));
|
||||
connections.put("238", Stream.of("177","220").collect(Collectors.toSet()));
|
||||
connections.put("239", Stream.of("59","169").collect(Collectors.toSet()));
|
||||
connections.put("240", Stream.of("229","300").collect(Collectors.toSet()));
|
||||
connections.put("241", Stream.of("208","264").collect(Collectors.toSet()));
|
||||
connections.put("242", Stream.of("45").collect(Collectors.toSet()));
|
||||
connections.put("243", Stream.of("164","294","164","294").collect(Collectors.toSet()));
|
||||
connections.put("244", Stream.of("55","190","35","271").collect(Collectors.toSet()));
|
||||
connections.put("245", Stream.of("113","280").collect(Collectors.toSet()));
|
||||
connections.put("246", Stream.of("153","164","203","288").collect(Collectors.toSet()));
|
||||
connections.put("247", Stream.of("272","284","272","284").collect(Collectors.toSet()));
|
||||
connections.put("248", Stream.of("11","253").collect(Collectors.toSet()));
|
||||
connections.put("249", Stream.of("13","48").collect(Collectors.toSet()));
|
||||
connections.put("250", Stream.of("234","251").collect(Collectors.toSet()));
|
||||
connections.put("251", Stream.of("5","250").collect(Collectors.toSet()));
|
||||
connections.put("252", Stream.of("41","174","175").collect(Collectors.toSet()));
|
||||
connections.put("253", Stream.of("94","248").collect(Collectors.toSet()));
|
||||
connections.put("254", Stream.of("25","87","25","87").collect(Collectors.toSet()));
|
||||
connections.put("255", Stream.of("68","88").collect(Collectors.toSet()));
|
||||
connections.put("256", Stream.of("12","257").collect(Collectors.toSet()));
|
||||
connections.put("257", Stream.of("59","256").collect(Collectors.toSet()));
|
||||
connections.put("258", Stream.of("126","191","102","151").collect(Collectors.toSet()));
|
||||
connections.put("259", Stream.of("26","223").collect(Collectors.toSet()));
|
||||
connections.put("260", Stream.of("121","301").collect(Collectors.toSet()));
|
||||
connections.put("261", Stream.of("224").collect(Collectors.toSet()));
|
||||
connections.put("262", Stream.of("2","166","3","166").collect(Collectors.toSet()));
|
||||
connections.put("263", Stream.of("8","139").collect(Collectors.toSet()));
|
||||
connections.put("264", Stream.of("52","108","241","1","110").collect(Collectors.toSet()));
|
||||
connections.put("265", Stream.of("160","302").collect(Collectors.toSet()));
|
||||
connections.put("266", Stream.of("267").collect(Collectors.toSet()));
|
||||
connections.put("267", Stream.of("129","266").collect(Collectors.toSet()));
|
||||
connections.put("268", Stream.of("15","21").collect(Collectors.toSet()));
|
||||
connections.put("269", Stream.of("78","199","78","199").collect(Collectors.toSet()));
|
||||
connections.put("270", Stream.of("125","125").collect(Collectors.toSet()));
|
||||
connections.put("271", Stream.of("197","244").collect(Collectors.toSet()));
|
||||
connections.put("272", Stream.of("228","247","228","247","107","197").collect(Collectors.toSet()));
|
||||
connections.put("273", Stream.of("26").collect(Collectors.toSet()));
|
||||
connections.put("274", Stream.of("154","210").collect(Collectors.toSet()));
|
||||
connections.put("275", Stream.of("215","224").collect(Collectors.toSet()));
|
||||
connections.put("276", Stream.of("89","102","89","191").collect(Collectors.toSet()));
|
||||
connections.put("277", Stream.of("159","192").collect(Collectors.toSet()));
|
||||
connections.put("278", Stream.of("87","148","232","284","87","136","13").collect(Collectors.toSet()));
|
||||
connections.put("279", Stream.of("62").collect(Collectors.toSet()));
|
||||
connections.put("280", Stream.of("185","245").collect(Collectors.toSet()));
|
||||
connections.put("281", Stream.of("144","172","94","201").collect(Collectors.toSet()));
|
||||
connections.put("282", Stream.of("147","217").collect(Collectors.toSet()));
|
||||
connections.put("283", Stream.of("155","200","291").collect(Collectors.toSet()));
|
||||
connections.put("284", Stream.of("87","247","87","247","107","278").collect(Collectors.toSet()));
|
||||
connections.put("285", Stream.of("72","181").collect(Collectors.toSet()));
|
||||
connections.put("286", Stream.of("74","96").collect(Collectors.toSet()));
|
||||
connections.put("287", Stream.of("93","301").collect(Collectors.toSet()));
|
||||
connections.put("288", Stream.of("36","199","36","199","43","246").collect(Collectors.toSet()));
|
||||
connections.put("289", Stream.of("94","142").collect(Collectors.toSet()));
|
||||
connections.put("290", Stream.of("115","209").collect(Collectors.toSet()));
|
||||
connections.put("291", Stream.of("42","200","283").collect(Collectors.toSet()));
|
||||
connections.put("292", Stream.of("17","74").collect(Collectors.toSet()));
|
||||
connections.put("293", Stream.of("220").collect(Collectors.toSet()));
|
||||
connections.put("294", Stream.of("3","243","224","227","3","243").collect(Collectors.toSet()));
|
||||
connections.put("295", Stream.of("76","225").collect(Collectors.toSet()));
|
||||
connections.put("296", Stream.of("71","142").collect(Collectors.toSet()));
|
||||
connections.put("297", Stream.of("113","137").collect(Collectors.toSet()));
|
||||
connections.put("298", Stream.of("299").collect(Collectors.toSet()));
|
||||
connections.put("299", Stream.of("230","298").collect(Collectors.toSet()));
|
||||
connections.put("300", Stream.of("37","214","240").collect(Collectors.toSet()));
|
||||
connections.put("301", Stream.of("260","287").collect(Collectors.toSet()));
|
||||
connections.put("302", Stream.of("31","265").collect(Collectors.toSet()));
|
||||
|
||||
underground = new Graph<>(stations, connections);
|
||||
routeFinder = new RouteFinder<>(underground, new HaversineScorer(), new HaversineScorer());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void findRoute() {
|
||||
List<Station> route = routeFinder.findRoute(underground.getNode("74"), underground.getNode("7"));
|
||||
|
||||
System.out.println(route.stream().map(Station::getName).collect(Collectors.toList()));
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,42 @@
|
|||
package com.baeldung.algorithms.astar.underground;
|
||||
|
||||
import java.util.StringJoiner;
|
||||
|
||||
import com.baeldung.algorithms.astar.GraphNode;
|
||||
|
||||
public class Station implements GraphNode {
|
||||
private final String id;
|
||||
private final String name;
|
||||
private final double latitude;
|
||||
private final double longitude;
|
||||
|
||||
public Station(String id, String name, double latitude, double longitude) {
|
||||
this.id = id;
|
||||
this.name = name;
|
||||
this.latitude = latitude;
|
||||
this.longitude = longitude;
|
||||
}
|
||||
|
||||
@Override
|
||||
public String getId() {
|
||||
return id;
|
||||
}
|
||||
|
||||
public String getName() {
|
||||
return name;
|
||||
}
|
||||
|
||||
public double getLatitude() {
|
||||
return latitude;
|
||||
}
|
||||
|
||||
public double getLongitude() {
|
||||
return longitude;
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
return new StringJoiner(", ", Station.class.getSimpleName() + "[", "]").add("id='" + id + "'")
|
||||
.add("name='" + name + "'").add("latitude=" + latitude).add("longitude=" + longitude).toString();
|
||||
}
|
||||
}
|
||||
Binary file not shown.
|
Before Width: | Height: | Size: 9.4 KiB After Width: | Height: | Size: 10 KiB |
|
|
@ -0,0 +1,37 @@
|
|||
package com.baeldung.algorithms.smallestinteger;
|
||||
|
||||
import java.util.Arrays;
|
||||
|
||||
public class SmallestMissingPositiveInteger {
|
||||
public static int searchInSortedArray(int[] input) {
|
||||
for (int i = 0; i < input.length; i++) {
|
||||
if (i != input[i]) {
|
||||
return i;
|
||||
}
|
||||
}
|
||||
|
||||
return input.length;
|
||||
}
|
||||
|
||||
public static int searchInUnsortedArraySortingFirst(int[] input) {
|
||||
Arrays.sort(input);
|
||||
return searchInSortedArray(input);
|
||||
}
|
||||
|
||||
public static int searchInUnsortedArrayBooleanArray(int[] input) {
|
||||
boolean[] flags = new boolean[input.length];
|
||||
for (int number : input) {
|
||||
if (number < flags.length) {
|
||||
flags[number] = true;
|
||||
}
|
||||
}
|
||||
|
||||
for (int i = 0; i < flags.length; i++) {
|
||||
if (!flags[i]) {
|
||||
return i;
|
||||
}
|
||||
}
|
||||
|
||||
return flags.length;
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,88 @@
|
|||
package com.baeldung.algorithms.smallestinteger;
|
||||
|
||||
import org.junit.jupiter.api.Test;
|
||||
|
||||
import static org.assertj.core.api.Assertions.assertThat;
|
||||
|
||||
class SmallestMissingPositiveIntegerUnitTest {
|
||||
@Test
|
||||
void givenArrayWithThreeMissing_whenSearchInSortedArray_thenThree() {
|
||||
int[] input = new int[] {0, 1, 2, 4, 5};
|
||||
|
||||
int result = SmallestMissingPositiveInteger.searchInSortedArray(input);
|
||||
|
||||
assertThat(result).isEqualTo(3);
|
||||
}
|
||||
|
||||
@Test
|
||||
void givenArrayWithOneAndThreeMissing_whenSearchInSortedArray_thenOne() {
|
||||
int[] input = new int[] {0, 2, 4, 5};
|
||||
|
||||
int result = SmallestMissingPositiveInteger.searchInSortedArray(input);
|
||||
|
||||
assertThat(result).isEqualTo(1);
|
||||
}
|
||||
|
||||
@Test
|
||||
void givenArrayWithoutMissingInteger_whenSearchInSortedArray_thenArrayLength() {
|
||||
int[] input = new int[] {0, 1, 2, 3, 4, 5};
|
||||
|
||||
int result = SmallestMissingPositiveInteger.searchInSortedArray(input);
|
||||
|
||||
assertThat(result).isEqualTo(input.length);
|
||||
}
|
||||
|
||||
@Test
|
||||
void givenArrayWithThreeMissing_whenSearchInUnsortedArraySortingFirst_thenThree() {
|
||||
int[] input = new int[] {1, 4, 0, 5, 2};
|
||||
|
||||
int result = SmallestMissingPositiveInteger.searchInUnsortedArraySortingFirst(input);
|
||||
|
||||
assertThat(result).isEqualTo(3);
|
||||
}
|
||||
|
||||
@Test
|
||||
void givenArrayWithOneAndThreeMissing_whenSearchInUnsortedArraySortingFirst_thenOne() {
|
||||
int[] input = new int[] {4, 2, 0, 5};
|
||||
|
||||
int result = SmallestMissingPositiveInteger.searchInUnsortedArraySortingFirst(input);
|
||||
|
||||
assertThat(result).isEqualTo(1);
|
||||
}
|
||||
|
||||
@Test
|
||||
void givenArrayWithoutMissingInteger_whenSearchInUnsortedArraySortingFirst_thenArrayLength() {
|
||||
int[] input = new int[] {4, 5, 1, 3, 0, 2};
|
||||
|
||||
int result = SmallestMissingPositiveInteger.searchInUnsortedArraySortingFirst(input);
|
||||
|
||||
assertThat(result).isEqualTo(input.length);
|
||||
}
|
||||
|
||||
@Test
|
||||
void givenArrayWithThreeMissing_whenSearchInUnsortedArrayBooleanArray_thenThree() {
|
||||
int[] input = new int[] {1, 4, 0, 5, 2};
|
||||
|
||||
int result = SmallestMissingPositiveInteger.searchInUnsortedArrayBooleanArray(input);
|
||||
|
||||
assertThat(result).isEqualTo(3);
|
||||
}
|
||||
|
||||
@Test
|
||||
void givenArrayWithOneAndThreeMissing_whenSearchInUnsortedArrayBooleanArray_thenOne() {
|
||||
int[] input = new int[] {4, 2, 0, 5};
|
||||
|
||||
int result = SmallestMissingPositiveInteger.searchInUnsortedArrayBooleanArray(input);
|
||||
|
||||
assertThat(result).isEqualTo(1);
|
||||
}
|
||||
|
||||
@Test
|
||||
void givenArrayWithoutMissingInteger_whenSearchInUnsortedArrayBooleanArray_thenArrayLength() {
|
||||
int[] input = new int[] {4, 5, 1, 3, 0, 2};
|
||||
|
||||
int result = SmallestMissingPositiveInteger.searchInUnsortedArrayBooleanArray(input);
|
||||
|
||||
assertThat(result).isEqualTo(input.length);
|
||||
}
|
||||
}
|
||||
|
|
@ -8,4 +8,5 @@ This module contains articles about algorithms. Some classes of algorithms, e.g.
|
|||
- [Converting Between Byte Arrays and Hexadecimal Strings in Java](https://www.baeldung.com/java-byte-arrays-hex-strings)
|
||||
- [Reversing a Binary Tree in Java](https://www.baeldung.com/java-reversing-a-binary-tree)
|
||||
- [Find If Two Numbers Are Relatively Prime in Java](https://www.baeldung.com/java-two-relatively-prime-numbers)
|
||||
- [Knapsack Problem Implementation in Java](https://www.baeldung.com/java-knapsack)
|
||||
- More articles: [[<-- prev]](/../algorithms-miscellaneous-4)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,33 @@
|
|||
package com.baeldung.algorithms.balancedbinarytree;
|
||||
|
||||
public class BalancedBinaryTree {
|
||||
|
||||
public static boolean isBalanced(Tree tree) {
|
||||
return isBalancedRecursive(tree, -1).isBalanced;
|
||||
}
|
||||
|
||||
private static Result isBalancedRecursive(Tree tree, int depth) {
|
||||
if (tree == null) {
|
||||
return new Result(true, -1);
|
||||
}
|
||||
|
||||
Result leftSubtreeResult = isBalancedRecursive(tree.left(), depth + 1);
|
||||
Result rightSubtreeResult = isBalancedRecursive(tree.right(), depth + 1);
|
||||
|
||||
boolean isBalanced = Math.abs(leftSubtreeResult.height - rightSubtreeResult.height) <= 1;
|
||||
boolean subtreesAreBalanced = leftSubtreeResult.isBalanced && rightSubtreeResult.isBalanced;
|
||||
int height = Math.max(leftSubtreeResult.height, rightSubtreeResult.height) + 1;
|
||||
|
||||
return new Result(isBalanced && subtreesAreBalanced, height);
|
||||
}
|
||||
|
||||
private static final class Result {
|
||||
private final boolean isBalanced;
|
||||
private final int height;
|
||||
|
||||
private Result(boolean isBalanced, int height) {
|
||||
this.isBalanced = isBalanced;
|
||||
this.height = height;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,34 @@
|
|||
package com.baeldung.algorithms.balancedbinarytree;
|
||||
|
||||
public class Tree {
|
||||
private final int value;
|
||||
private final Tree left;
|
||||
private final Tree right;
|
||||
|
||||
public Tree(int value, Tree left, Tree right) {
|
||||
this.value = value;
|
||||
this.left = left;
|
||||
this.right = right;
|
||||
}
|
||||
|
||||
public int value() {
|
||||
return value;
|
||||
}
|
||||
|
||||
public Tree left() {
|
||||
return left;
|
||||
}
|
||||
|
||||
public Tree right() {
|
||||
return right;
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
return String.format("[%s, %s, %s]",
|
||||
value,
|
||||
left == null ? "null" : left.toString(),
|
||||
right == null ? "null" : right.toString()
|
||||
);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,17 @@
|
|||
package com.baeldung.algorithms.binarygap;
|
||||
|
||||
public class BinaryGap {
|
||||
static int calculateBinaryGap(int n) {
|
||||
return calculateBinaryGap(n >>> Integer.numberOfTrailingZeros(n), 0, 0);
|
||||
}
|
||||
|
||||
static int calculateBinaryGap(int n, int current, int maximum) {
|
||||
if (n == 0) {
|
||||
return maximum;
|
||||
} else if ((n & 1) == 0) {
|
||||
return calculateBinaryGap(n >>> 1, current + 1, maximum);
|
||||
} else {
|
||||
return calculateBinaryGap(n >>> 1, 0, Math.max(maximum, current));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
package com.baeldung.algorithms.balancedbinarytree;
|
||||
|
||||
import org.junit.Test;
|
||||
import static org.junit.Assert.assertTrue;
|
||||
import static org.junit.Assert.assertFalse;
|
||||
|
||||
public class BalancedBinaryTreeUnitTest extends BinaryTreeDataProvider {
|
||||
|
||||
@Test
|
||||
public void givenBalancedTrees_whenCallingIsBalanced_ShouldReturnTrue() {
|
||||
for (Tree tree : balancedTrees()) {
|
||||
assertTrue(toString(tree) + " should be balanced", BalancedBinaryTree.isBalanced(tree));
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenUnbalancedTrees_whenCallingIsBalanced_ShouldReturnFalse() {
|
||||
for (Tree tree : unbalancedTrees()) {
|
||||
assertFalse(toString(tree) + " should not be balanced", BalancedBinaryTree.isBalanced(tree));
|
||||
}
|
||||
}
|
||||
|
||||
private String toString(Tree tree) {
|
||||
return tree != null ? tree.toString() : "null";
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,69 @@
|
|||
package com.baeldung.algorithms.balancedbinarytree;
|
||||
|
||||
import java.util.Arrays;
|
||||
import java.util.Collection;
|
||||
|
||||
class BinaryTreeDataProvider {
|
||||
|
||||
static Collection<Tree> balancedTrees() {
|
||||
return Arrays.asList(
|
||||
null,
|
||||
leaf(1),
|
||||
tree(1, leaf(2), leaf(3)),
|
||||
tree(
|
||||
1,
|
||||
leaf(2),
|
||||
tree(3, leaf(4), null)
|
||||
),
|
||||
tree(
|
||||
1,
|
||||
tree(
|
||||
2,
|
||||
tree(3, leaf(4), null),
|
||||
leaf(5)
|
||||
),
|
||||
tree(
|
||||
6,
|
||||
leaf(7),
|
||||
tree(8, null, leaf(9))
|
||||
)
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
static Collection<Tree> unbalancedTrees() {
|
||||
return Arrays.asList(
|
||||
tree(
|
||||
1,
|
||||
tree(2, leaf(3), null),
|
||||
null
|
||||
),
|
||||
tree(
|
||||
1,
|
||||
tree(
|
||||
2,
|
||||
tree(3, leaf(4), leaf(5)),
|
||||
null
|
||||
),
|
||||
tree(6, leaf(7), null)
|
||||
),
|
||||
tree(
|
||||
1,
|
||||
tree(2, leaf(3), null),
|
||||
tree(
|
||||
4,
|
||||
tree(5, leaf(6), leaf(7)),
|
||||
null
|
||||
)
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
private static Tree leaf(int value) {
|
||||
return new Tree(value, null, null);
|
||||
}
|
||||
|
||||
private static Tree tree(int value, Tree left, Tree right) {
|
||||
return new Tree(value, left, right);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,34 @@
|
|||
package com.baeldung.algorithms.binarygap;
|
||||
|
||||
import static com.baeldung.algorithms.binarygap.BinaryGap.calculateBinaryGap;
|
||||
import static org.junit.jupiter.api.Assertions.assertEquals;
|
||||
|
||||
import org.junit.jupiter.api.Test;
|
||||
|
||||
public class BinaryGapUnitTest {
|
||||
|
||||
@Test public void givenNoOccurrenceOfBoundedZeros_whenCalculateBinaryGap_thenOutputCorrectResult() {
|
||||
|
||||
int result = calculateBinaryGap(63);
|
||||
assertEquals(0, result);
|
||||
}
|
||||
|
||||
@Test public void givenTrailingZeros_whenCalculateBinaryGap_thenOutputCorrectResult() {
|
||||
|
||||
int result = calculateBinaryGap(40);
|
||||
assertEquals(1, result);
|
||||
}
|
||||
|
||||
@Test public void givenSingleOccurrenceOfBoundedZeros_whenCalculateBinaryGap_thenOutputCorrectResult() {
|
||||
|
||||
int result = calculateBinaryGap(9);
|
||||
assertEquals(2, result);
|
||||
}
|
||||
|
||||
@Test public void givenMultipleOccurrenceOfBoundedZeros_whenCalculateBinaryGap_thenOutputCorrectResult() {
|
||||
|
||||
int result = calculateBinaryGap(145);
|
||||
assertEquals(3, result);
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -5,6 +5,5 @@ This module contains modules about core Java
|
|||
## Relevant articles:
|
||||
|
||||
- [Multi-Module Maven Application with Java Modules](https://www.baeldung.com/maven-multi-module-project-java-jpms)
|
||||
- [Guide to Java FileChannel](https://www.baeldung.com/java-filechannel)
|
||||
- [Understanding the NumberFormatException in Java](https://www.baeldung.com/java-number-format-exception)
|
||||
- [Will an Error Be Caught by Catch Block in Java?](https://www.baeldung.com/java-error-catch)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,17 @@
|
|||
## Core Java 9
|
||||
|
||||
This module contains articles about the improvements to core Java features introduced with Java 9.
|
||||
|
||||
### Relevant Articles:
|
||||
|
||||
- [New Stream Collectors in Java 9](http://www.baeldung.com/java9-stream-collectors)
|
||||
- [Java 9 Optional API Additions](https://www.baeldung.com/java-9-optional)
|
||||
- [Java 9 Convenience Factory Methods for Collections](https://www.baeldung.com/java-9-collections-factory-methods)
|
||||
- [Java 9 Stream API Improvements](https://www.baeldung.com/java-9-stream-api)
|
||||
- [Java 9 java.util.Objects Additions](https://www.baeldung.com/java-9-objects-new)
|
||||
- [Java 9 CompletableFuture API Improvements](https://www.baeldung.com/java-9-completablefuture)
|
||||
|
||||
#### Relevant articles not in this module:
|
||||
|
||||
- [Java 9 Process API Improvements](https://www.baeldung.com/java-9-process-api) (see the [core-java-os](/core-java-os) module)
|
||||
|
||||
|
|
@ -0,0 +1,73 @@
|
|||
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
|
||||
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
<artifactId>core-java-9</artifactId>
|
||||
<version>0.2-SNAPSHOT</version>
|
||||
<name>core-java-9</name>
|
||||
|
||||
<parent>
|
||||
<groupId>com.baeldung</groupId>
|
||||
<artifactId>parent-modules</artifactId>
|
||||
<version>1.0.0-SNAPSHOT</version>
|
||||
<relativePath>../../</relativePath>
|
||||
</parent>
|
||||
|
||||
<dependencies>
|
||||
<dependency>
|
||||
<groupId>com.jayway.awaitility</groupId>
|
||||
<artifactId>awaitility</artifactId>
|
||||
<version>${awaitility.version}</version>
|
||||
<scope>test</scope>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.assertj</groupId>
|
||||
<artifactId>assertj-core</artifactId>
|
||||
<version>${assertj.version}</version>
|
||||
<scope>test</scope>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>com.google.guava</groupId>
|
||||
<artifactId>guava</artifactId>
|
||||
<version>${guava.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.junit.platform</groupId>
|
||||
<artifactId>junit-platform-runner</artifactId>
|
||||
<version>${junit.platform.version}</version>
|
||||
<scope>test</scope>
|
||||
</dependency>
|
||||
</dependencies>
|
||||
|
||||
<build>
|
||||
<finalName>core-java-9</finalName>
|
||||
<plugins>
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-compiler-plugin</artifactId>
|
||||
<version>${maven-compiler-plugin.version}</version>
|
||||
<configuration>
|
||||
<source>${maven.compiler.source}</source>
|
||||
<target>${maven.compiler.target}</target>
|
||||
</configuration>
|
||||
</plugin>
|
||||
</plugins>
|
||||
</build>
|
||||
|
||||
<pluginRepositories>
|
||||
<pluginRepository>
|
||||
<id>apache.snapshots</id>
|
||||
<url>http://repository.apache.org/snapshots/</url>
|
||||
</pluginRepository>
|
||||
</pluginRepositories>
|
||||
|
||||
<properties>
|
||||
<!-- testing -->
|
||||
<assertj.version>3.10.0</assertj.version>
|
||||
<junit.platform.version>1.2.0</junit.platform.version>
|
||||
<awaitility.version>1.7.0</awaitility.version>
|
||||
<maven.compiler.source>1.9</maven.compiler.source>
|
||||
<maven.compiler.target>1.9</maven.compiler.target>
|
||||
<guava.version>25.1-jre</guava.version>
|
||||
</properties>
|
||||
|
||||
</project>
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
## Core Java 9
|
||||
|
||||
This module contains articles about Project Jigsaw and the Java Platform Module System (JPMS), introduced with Java 9.
|
||||
|
||||
### Relevant Articles:
|
||||
|
||||
- [Introduction to Project Jigsaw](http://www.baeldung.com/project-jigsaw-java-modularity)
|
||||
- [A Guide to Java 9 Modularity](https://www.baeldung.com/java-9-modularity)
|
||||
- [Java 9 java.lang.Module API](https://www.baeldung.com/java-9-module-api)
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,35 @@
|
|||
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
|
||||
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
<artifactId>core-java-9-jigsaw</artifactId>
|
||||
<version>0.2-SNAPSHOT</version>
|
||||
<name>core-java-9</name>
|
||||
|
||||
<parent>
|
||||
<groupId>com.baeldung</groupId>
|
||||
<artifactId>parent-modules</artifactId>
|
||||
<version>1.0.0-SNAPSHOT</version>
|
||||
<relativePath>../../</relativePath>
|
||||
</parent>
|
||||
|
||||
<build>
|
||||
<finalName>core-java-9-jigsaw</finalName>
|
||||
<plugins>
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-compiler-plugin</artifactId>
|
||||
<version>${maven-compiler-plugin.version}</version>
|
||||
<configuration>
|
||||
<source>${maven.compiler.source}</source>
|
||||
<target>${maven.compiler.target}</target>
|
||||
</configuration>
|
||||
</plugin>
|
||||
</plugins>
|
||||
</build>
|
||||
|
||||
<properties>
|
||||
<maven.compiler.source>1.9</maven.compiler.source>
|
||||
<maven.compiler.target>1.9</maven.compiler.target>
|
||||
</properties>
|
||||
|
||||
</project>
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
## Core Java 9
|
||||
|
||||
This module contains articles about core Java features that have been introduced in Java 9.
|
||||
|
||||
### Relevant Articles:
|
||||
|
||||
- [Java 9 New Features](https://www.baeldung.com/new-java-9)
|
||||
- [Java 9 Variable Handles Demystified](http://www.baeldung.com/java-variable-handles)
|
||||
- [Exploring the New HTTP Client in Java 9 and 11](http://www.baeldung.com/java-9-http-client)
|
||||
- [Multi-Release Jar Files](https://www.baeldung.com/java-multi-release-jar)
|
||||
- [Ahead of Time Compilation (AoT)](https://www.baeldung.com/ahead-of-time-compilation)
|
||||
- [Introduction to Java 9 StackWalking API](https://www.baeldung.com/java-9-stackwalking-api)
|
||||
- [Java 9 Platform Logging API](https://www.baeldung.com/java-9-logging-api)
|
||||
- [Java 9 Reactive Streams](https://www.baeldung.com/java-9-reactive-streams)
|
||||
|
|
@ -0,0 +1,60 @@
|
|||
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
|
||||
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
<artifactId>core-java-9-new-features</artifactId>
|
||||
<version>0.2-SNAPSHOT</version>
|
||||
<name>core-java-9</name>
|
||||
|
||||
<parent>
|
||||
<groupId>com.baeldung</groupId>
|
||||
<artifactId>parent-modules</artifactId>
|
||||
<version>1.0.0-SNAPSHOT</version>
|
||||
<relativePath>../../</relativePath>
|
||||
</parent>
|
||||
|
||||
<dependencies>
|
||||
<dependency>
|
||||
<groupId>org.assertj</groupId>
|
||||
<artifactId>assertj-core</artifactId>
|
||||
<version>${assertj.version}</version>
|
||||
<scope>test</scope>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.junit.platform</groupId>
|
||||
<artifactId>junit-platform-runner</artifactId>
|
||||
<version>${junit.platform.version}</version>
|
||||
<scope>test</scope>
|
||||
</dependency>
|
||||
</dependencies>
|
||||
|
||||
<build>
|
||||
<finalName>core-java-9-new-features</finalName>
|
||||
<plugins>
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-compiler-plugin</artifactId>
|
||||
<version>${maven-compiler-plugin.version}</version>
|
||||
<configuration>
|
||||
<source>${maven.compiler.source}</source>
|
||||
<target>${maven.compiler.target}</target>
|
||||
</configuration>
|
||||
</plugin>
|
||||
</plugins>
|
||||
</build>
|
||||
|
||||
<pluginRepositories>
|
||||
<pluginRepository>
|
||||
<id>apache.snapshots</id>
|
||||
<url>http://repository.apache.org/snapshots/</url>
|
||||
</pluginRepository>
|
||||
</pluginRepositories>
|
||||
|
||||
<properties>
|
||||
<!-- testing -->
|
||||
<assertj.version>3.10.0</assertj.version>
|
||||
<junit.platform.version>1.2.0</junit.platform.version>
|
||||
<maven.compiler.source>1.9</maven.compiler.source>
|
||||
<maven.compiler.target>1.9</maven.compiler.target>
|
||||
</properties>
|
||||
|
||||
</project>
|
||||
|
|
@ -1,13 +0,0 @@
|
|||
*.class
|
||||
|
||||
#folders#
|
||||
/target
|
||||
/neoDb*
|
||||
/data
|
||||
/src/main/webapp/WEB-INF/classes
|
||||
*/META-INF/*
|
||||
|
||||
# Packaged files #
|
||||
*.jar
|
||||
*.war
|
||||
*.ear
|
||||
|
|
@ -4,28 +4,13 @@ This module contains articles about Java 9 core features
|
|||
|
||||
### Relevant Articles:
|
||||
|
||||
- [Java 9 New Features](https://www.baeldung.com/new-java-9)
|
||||
- [New Stream Collectors in Java 9](http://www.baeldung.com/java9-stream-collectors)
|
||||
- [Introduction to Project Jigsaw](http://www.baeldung.com/project-jigsaw-java-modularity)
|
||||
- [Java 9 Variable Handles Demystified](http://www.baeldung.com/java-variable-handles)
|
||||
- [Exploring the New HTTP Client in Java 9 and 11](http://www.baeldung.com/java-9-http-client)
|
||||
- [Method Handles in Java](http://www.baeldung.com/java-method-handles)
|
||||
- [Introduction to Chronicle Queue](http://www.baeldung.com/java-chronicle-queue)
|
||||
- [Optional orElse Optional](http://www.baeldung.com/java-optional-or-else-optional)
|
||||
- [Iterate Through a Range of Dates in Java](https://www.baeldung.com/java-iterate-date-range)
|
||||
- [Initialize a HashMap in Java](https://www.baeldung.com/java-initialize-hashmap)
|
||||
- [Immutable Set in Java](https://www.baeldung.com/java-immutable-set)
|
||||
- [Multi-Release Jar Files](https://www.baeldung.com/java-multi-release-jar)
|
||||
- [Ahead of Time Compilation (AoT)](https://www.baeldung.com/ahead-of-time-compilation)
|
||||
- [Java 9 Process API Improvements](https://www.baeldung.com/java-9-process-api)
|
||||
- [Java 9 java.util.Objects Additions](https://www.baeldung.com/java-9-objects-new)
|
||||
- [Java 9 Reactive Streams](https://www.baeldung.com/java-9-reactive-streams)
|
||||
- [Java 9 Optional API Additions](https://www.baeldung.com/java-9-optional)
|
||||
- [Java 9 CompletableFuture API Improvements](https://www.baeldung.com/java-9-completablefuture)
|
||||
- [Introduction to Java 9 StackWalking API](https://www.baeldung.com/java-9-stackwalking-api)
|
||||
- [Java 9 Convenience Factory Methods for Collections](https://www.baeldung.com/java-9-collections-factory-methods)
|
||||
- [Java 9 Stream API Improvements](https://www.baeldung.com/java-9-stream-api)
|
||||
- [A Guide to Java 9 Modularity](https://www.baeldung.com/java-9-modularity)
|
||||
- [Java 9 java.lang.Module API](https://www.baeldung.com/java-9-module-api)
|
||||
- [Java 9 Platform Logging API](https://www.baeldung.com/java-9-logging-api)
|
||||
- [Filtering a Stream of Optionals in Java](https://www.baeldung.com/java-filter-stream-of-optional)
|
||||
|
||||
Note: also contains part of the code for the article
|
||||
[How to Filter a Collection in Java](https://www.baeldung.com/java-collection-filtering).
|
||||
|
|
|
|||
|
|
@ -1,13 +0,0 @@
|
|||
*.class
|
||||
|
||||
#folders#
|
||||
/target
|
||||
/neoDb*
|
||||
/data
|
||||
/src/main/webapp/WEB-INF/classes
|
||||
*/META-INF/*
|
||||
|
||||
# Packaged files #
|
||||
*.jar
|
||||
*.war
|
||||
*.ear
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
### Relevant Artiles:
|
||||
- [Filtering a Stream of Optionals in Java](http://www.baeldung.com/java-filter-stream-of-optional)
|
||||
|
|
@ -12,4 +12,5 @@ This module contains articles about Java arrays
|
|||
- [Intersection Between two Integer Arrays](https://www.baeldung.com/java-array-intersection)
|
||||
- [Removing an Element from an Array in Java](https://www.baeldung.com/java-array-remove-element)
|
||||
- [Removing the First Element of an Array](https://www.baeldung.com/java-array-remove-first-element)
|
||||
- [Adding an Element to a Java Array vs an ArrayList](https://www.baeldung.com/java-add-element-to-array-vs-list)
|
||||
- [[<-- Prev]](/core-java-modules/core-java-arrays)
|
||||
|
|
|
|||
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Reference in New Issue