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Merge pull request #6511 from MherBaghinyan/BAEL-2563

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Bael 2563
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Eric Martin 2019-03-27 21:53:34 -05:00 committed by GitHub
commit 92dc9a35c0
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2 changed files with 114 additions and 0 deletions
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45
java-collections-maps-2/pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<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>java-collections-maps-2</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>java-collections-maps-2</name>
<packaging>jar</packaging>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-java</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-java</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>org.eclipse.collections</groupId>
<artifactId>eclipse-collections</artifactId>
<version>${eclipse-collections.version}</version>
</dependency>
<dependency>
<groupId>net.sf.trove4j</groupId>
<artifactId>trove4j</artifactId>
<version>3.0.2</version>
</dependency>
<dependency>
<groupId>it.unimi.dsi</groupId>
<artifactId>fastutil</artifactId>
<version>8.1.0</version>
</dependency>
<dependency>
<groupId>colt</groupId>
<artifactId>colt</artifactId>
<version>1.2.0</version>
</dependency>
</dependencies>
<properties>
<eclipse-collections.version>8.2.0</eclipse-collections.version>
</properties>
</project>

69
java-collections-maps-2/src/main/java/com/baeldung/map/PrimitiveMaps.java Normal file
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package com.baeldung.map;
import cern.colt.map.AbstractIntDoubleMap;
import cern.colt.map.OpenIntDoubleHashMap;
import gnu.trove.map.TDoubleIntMap;
import gnu.trove.map.hash.TDoubleIntHashMap;
import it.unimi.dsi.fastutil.ints.Int2BooleanMap;
import it.unimi.dsi.fastutil.ints.Int2BooleanOpenHashMap;
import it.unimi.dsi.fastutil.ints.Int2BooleanSortedMap;
import it.unimi.dsi.fastutil.ints.Int2BooleanSortedMaps;
import org.eclipse.collections.api.map.primitive.ImmutableIntIntMap;
import org.eclipse.collections.api.map.primitive.MutableIntIntMap;
import org.eclipse.collections.api.map.primitive.MutableObjectDoubleMap;
import org.eclipse.collections.impl.factory.primitive.IntIntMaps;
import org.eclipse.collections.impl.factory.primitive.ObjectDoubleMaps;
public class PrimitiveMaps {
public static void main(String[] args) {
eclipseCollectionsMap();
troveMap();
coltMap();
fastutilMap();
}
private static void fastutilMap() {
Int2BooleanMap int2BooleanMap = new Int2BooleanOpenHashMap();
int2BooleanMap.put(1, true);
int2BooleanMap.put(7, false);
int2BooleanMap.put(4, true);
boolean value = int2BooleanMap.get(1);
Int2BooleanSortedMap int2BooleanSorted = Int2BooleanSortedMaps.EMPTY_MAP;
}
private static void coltMap() {
AbstractIntDoubleMap map = new OpenIntDoubleHashMap();
map.put(1, 4.5);
double value = map.get(1);
}
private static void eclipseCollectionsMap() {
MutableIntIntMap mutableIntIntMap = IntIntMaps.mutable.empty();
mutableIntIntMap.addToValue(1, 1);
ImmutableIntIntMap immutableIntIntMap = IntIntMaps.immutable.empty();
MutableObjectDoubleMap<String> dObject = ObjectDoubleMaps.mutable.empty();
dObject.addToValue("price", 150.5);
dObject.addToValue("quality", 4.4);
dObject.addToValue("stability", 0.8);
}
private static void troveMap() {
double[] doubles = new double[] {1.2, 4.5, 0.3};
int[] ints = new int[] {1, 4, 0};
TDoubleIntMap doubleIntMap = new TDoubleIntHashMap(doubles, ints);
doubleIntMap.put(1.2, 22);
doubleIntMap.put(4.5, 16);
doubleIntMap.adjustValue(1.2, 1);
doubleIntMap.adjustValue(4.5, 4);
doubleIntMap.adjustValue(0.3, 7);
}
}