Merge branch 'master' into BAEL-2313-String-to-byte-array

This commit is contained in:
Loredana Crusoveanu 2018-12-16 12:39:51 +02:00 committed by GitHub
commit 46c8f48d3c
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1489 changed files with 22564 additions and 4361 deletions

View File

@ -4,7 +4,7 @@ before_install:
- echo "MAVEN_OPTS='-Xmx2048M -Xss128M -XX:+CMSClassUnloadingEnabled -XX:+UseG1GC -XX:-UseGCOverheadLimit'" > ~/.mavenrc
install: skip
script: travis_wait 60 mvn -q install -Pdefault-first,default-second
script: travis_wait 60 mvn -q install -Pdefault-first,default-second -Dgib.enabled=true
sudo: required

View File

@ -28,14 +28,14 @@ public class Log {
System.out.println("Had " + count + " commits overall on current branch");
logs = git.log()
.add(repository.resolve("remotes/origin/testbranch"))
.add(repository.resolve(git.getRepository().getFullBranch()))
.call();
count = 0;
for (RevCommit rev : logs) {
System.out.println("Commit: " + rev /* + ", name: " + rev.getName() + ", id: " + rev.getId().getName() */);
count++;
}
System.out.println("Had " + count + " commits overall on test-branch");
System.out.println("Had " + count + " commits overall on "+git.getRepository().getFullBranch());
logs = git.log()
.all()

View File

@ -1,3 +1,5 @@
package com.baeldung.jgit;
import com.baeldung.jgit.helper.Helper;
import org.eclipse.jgit.lib.ObjectLoader;
import org.eclipse.jgit.lib.ObjectReader;

View File

@ -1,10 +1,10 @@
<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>
<groupId>com.baeldung</groupId>
<artifactId>algorithms-genetic</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>algorithms-genetic</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
@ -61,4 +61,5 @@
<commons-codec.version>1.11</commons-codec.version>
</properties>
</project>
</project>

View File

@ -1,10 +1,10 @@
<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>
<groupId>com.baeldung</groupId>
<artifactId>algorithms-miscellaneous-1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>algorithms-miscellaneous-1</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
@ -17,6 +17,11 @@
<artifactId>commons-math3</artifactId>
<version>${commons-math3.version}</version>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>${guava.version}</version>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
@ -73,6 +78,7 @@
<commons-math3.version>3.6.1</commons-math3.version>
<org.assertj.core.version>3.9.0</org.assertj.core.version>
<commons-codec.version>1.11</commons-codec.version>
<guava.version>25.1-jre</guava.version>
</properties>
</project>

View File

@ -0,0 +1,63 @@
package com.baeldung.algorithms.factorial;
import java.math.BigInteger;
import java.util.stream.LongStream;
import org.apache.commons.math3.util.CombinatoricsUtils;
import com.google.common.math.BigIntegerMath;
public class Factorial {
public long factorialUsingForLoop(int n) {
long fact = 1;
for (int i = 2; i <= n; i++) {
fact = fact * i;
}
return fact;
}
public long factorialUsingStreams(int n) {
return LongStream.rangeClosed(1, n)
.reduce(1, (long x, long y) -> x * y);
}
public long factorialUsingRecursion(int n) {
if (n <= 2) {
return n;
}
return n * factorialUsingRecursion(n - 1);
}
private Long[] factorials = new Long[20];
public long factorialUsingMemoize(int n) {
if (factorials[n] != null) {
return factorials[n];
}
if (n <= 2) {
return n;
}
long nthValue = n * factorialUsingMemoize(n - 1);
factorials[n] = nthValue;
return nthValue;
}
public BigInteger factorialHavingLargeResult(int n) {
BigInteger result = BigInteger.ONE;
for (int i = 2; i <= n; i++)
result = result.multiply(BigInteger.valueOf(i));
return result;
}
public long factorialUsingApacheCommons(int n) {
return CombinatoricsUtils.factorial(n);
}
public BigInteger factorialUsingGuava(int n) {
return BigIntegerMath.factorial(n);
}
}

View File

@ -0,0 +1,54 @@
package com.baeldung.algorithms.string;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
public class LongestSubstringNonRepeatingCharacters {
public static String getUniqueCharacterSubstringBruteForce(String input) {
String output = "";
for (int start = 0; start < input.length(); start++) {
Set<Character> visited = new HashSet<>();
int end = start;
for (; end < input.length(); end++) {
char currChar = input.charAt(end);
if (visited.contains(currChar)) {
break;
} else {
visited.add(currChar);
}
}
if (output.length() < end - start + 1) {
output = input.substring(start, end);
}
}
return output;
}
public static String getUniqueCharacterSubstring(String input) {
Map<Character, Integer> visited = new HashMap<>();
String output = "";
for (int start = 0, end = 0; end < input.length(); end++) {
char currChar = input.charAt(end);
if (visited.containsKey(currChar)) {
start = Math.max(visited.get(currChar) + 1, start);
}
if (output.length() < end - start + 1) {
output = input.substring(start, end + 1);
}
visited.put(currChar, end);
}
return output;
}
public static void main(String[] args) {
if(args.length > 0) {
System.out.println(getUniqueCharacterSubstring(args[0]));
} else {
System.err.println("This program expects command-line input. Please try again!");
}
}
}

View File

@ -0,0 +1,90 @@
package com.baeldung.algorithms.string;
import java.util.HashSet;
import java.util.Set;
public class SubstringPalindrome {
public Set<String> findAllPalindromesUsingCenter(String input) {
final Set<String> palindromes = new HashSet<>();
if (input == null || input.isEmpty()) {
return palindromes;
}
if (input.length() == 1) {
palindromes.add(input);
return palindromes;
}
for (int i = 0; i < input.length(); i++) {
palindromes.addAll(findPalindromes(input, i, i + 1));
palindromes.addAll(findPalindromes(input, i, i));
}
return palindromes;
}
private Set<String> findPalindromes(String input, int low, int high) {
Set<String> result = new HashSet<>();
while (low >= 0 && high < input.length() && input.charAt(low) == input.charAt(high)) {
result.add(input.substring(low, high + 1));
low--;
high++;
}
return result;
}
public Set<String> findAllPalindromesUsingBruteForceApproach(String input) {
Set<String> palindromes = new HashSet<>();
if (input == null || input.isEmpty()) {
return palindromes;
}
if (input.length() == 1) {
palindromes.add(input);
return palindromes;
}
for (int i = 0; i < input.length(); i++) {
for (int j = i + 1; j <= input.length(); j++)
if (isPalindrome(input.substring(i, j))) {
palindromes.add(input.substring(i, j));
}
}
return palindromes;
}
private boolean isPalindrome(String input) {
StringBuilder plain = new StringBuilder(input);
StringBuilder reverse = plain.reverse();
return (reverse.toString()).equals(input);
}
public Set<String> findAllPalindromesUsingManachersAlgorithm(String input) {
Set<String> palindromes = new HashSet<>();
String formattedInput = "@" + input + "#";
char inputCharArr[] = formattedInput.toCharArray();
int max;
int radius[][] = new int[2][input.length() + 1];
for (int j = 0; j <= 1; j++) {
radius[j][0] = max = 0;
int i = 1;
while (i <= input.length()) {
palindromes.add(Character.toString(inputCharArr[i]));
while (inputCharArr[i - max - 1] == inputCharArr[i + j + max])
max++;
radius[j][i] = max;
int k = 1;
while ((radius[j][i - k] != max - k) && (k < max)) {
radius[j][i + k] = Math.min(radius[j][i - k], max - k);
k++;
}
max = Math.max(max - k, 0);
i += k;
}
}
for (int i = 1; i <= input.length(); i++) {
for (int j = 0; j <= 1; j++) {
for (max = radius[j][i]; max > 0; max--) {
palindromes.add(input.substring(i - max - 1, max + j + i - 1));
}
}
}
return palindromes;
}
}

View File

@ -0,0 +1,72 @@
package com.baeldung.algorithms.factorial;
import static org.assertj.core.api.Assertions.assertThat;
import java.math.BigInteger;
import org.junit.Before;
import org.junit.Test;
public class FactorialUnitTest {
Factorial factorial;
@Before
public void setup() {
factorial = new Factorial();
}
@Test
public void whenCalculatingFactorialUsingForLoop_thenCorrect() {
int n = 5;
assertThat(factorial.factorialUsingForLoop(n)).isEqualTo(120);
}
@Test
public void whenCalculatingFactorialUsingStreams_thenCorrect() {
int n = 5;
assertThat(factorial.factorialUsingStreams(n)).isEqualTo(120);
}
@Test
public void whenCalculatingFactorialUsingRecursion_thenCorrect() {
int n = 5;
assertThat(factorial.factorialUsingRecursion(n)).isEqualTo(120);
}
@Test
public void whenCalculatingFactorialUsingMemoize_thenCorrect() {
int n = 5;
assertThat(factorial.factorialUsingMemoize(n)).isEqualTo(120);
n = 6;
assertThat(factorial.factorialUsingMemoize(n)).isEqualTo(720);
}
@Test
public void whenCalculatingFactorialHavingLargeResult_thenCorrect() {
int n = 22;
assertThat(factorial.factorialHavingLargeResult(n)).isEqualTo(new BigInteger("1124000727777607680000"));
}
@Test
public void whenCalculatingFactorialUsingApacheCommons_thenCorrect() {
int n = 5;
assertThat(factorial.factorialUsingApacheCommons(n)).isEqualTo(120);
}
@Test
public void whenCalculatingFactorialUsingGuava_thenCorrect() {
int n = 22;
assertThat(factorial.factorialUsingGuava(n)).isEqualTo(new BigInteger("1124000727777607680000"));
}
}

View File

@ -0,0 +1,31 @@
package com.baeldung.algorithms.string;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static com.baeldung.algorithms.string.LongestSubstringNonRepeatingCharacters.getUniqueCharacterSubstring;
import static com.baeldung.algorithms.string.LongestSubstringNonRepeatingCharacters.getUniqueCharacterSubstringBruteForce;
public class LongestSubstringNonRepeatingCharactersUnitTest {
@Test
void givenString_whenGetUniqueCharacterSubstringBruteForceCalled_thenResultFoundAsExpectedUnitTest() {
assertEquals("", getUniqueCharacterSubstringBruteForce(""));
assertEquals("A", getUniqueCharacterSubstringBruteForce("A"));
assertEquals("ABCDEF", getUniqueCharacterSubstringBruteForce("AABCDEF"));
assertEquals("ABCDEF", getUniqueCharacterSubstringBruteForce("ABCDEFF"));
assertEquals("NGISAWE", getUniqueCharacterSubstringBruteForce("CODINGISAWESOME"));
assertEquals("be coding", getUniqueCharacterSubstringBruteForce("always be coding"));
}
@Test
void givenString_whenGetUniqueCharacterSubstringCalled_thenResultFoundAsExpectedUnitTest() {
assertEquals("", getUniqueCharacterSubstring(""));
assertEquals("A", getUniqueCharacterSubstring("A"));
assertEquals("ABCDEF", getUniqueCharacterSubstring("AABCDEF"));
assertEquals("ABCDEF", getUniqueCharacterSubstring("ABCDEFF"));
assertEquals("NGISAWE", getUniqueCharacterSubstring("CODINGISAWESOME"));
assertEquals("be coding", getUniqueCharacterSubstring("always be coding"));
}
}

View File

@ -0,0 +1,83 @@
package com.baeldung.algorithms.string;
import static org.junit.Assert.assertEquals;
import java.util.HashSet;
import java.util.Set;
import org.junit.Test;
public class SubstringPalindromeUnitTest {
private static final String INPUT_BUBBLE = "bubble";
private static final String INPUT_CIVIC = "civic";
private static final String INPUT_INDEED = "indeed";
private static final String INPUT_ABABAC = "ababac";
Set<String> EXPECTED_PALINDROME_BUBBLE = new HashSet<String>() {
{
add("b");
add("u");
add("l");
add("e");
add("bb");
add("bub");
}
};
Set<String> EXPECTED_PALINDROME_CIVIC = new HashSet<String>() {
{
add("civic");
add("ivi");
add("i");
add("c");
add("v");
}
};
Set<String> EXPECTED_PALINDROME_INDEED = new HashSet<String>() {
{
add("i");
add("n");
add("d");
add("e");
add("ee");
add("deed");
}
};
Set<String> EXPECTED_PALINDROME_ABABAC = new HashSet<String>() {
{
add("a");
add("b");
add("c");
add("aba");
add("bab");
add("ababa");
}
};
private SubstringPalindrome palindrome = new SubstringPalindrome();
@Test
public void whenUsingManachersAlgorithm_thenFindsAllPalindromes() {
assertEquals(EXPECTED_PALINDROME_BUBBLE, palindrome.findAllPalindromesUsingManachersAlgorithm(INPUT_BUBBLE));
assertEquals(EXPECTED_PALINDROME_INDEED, palindrome.findAllPalindromesUsingManachersAlgorithm(INPUT_INDEED));
assertEquals(EXPECTED_PALINDROME_CIVIC, palindrome.findAllPalindromesUsingManachersAlgorithm(INPUT_CIVIC));
assertEquals(EXPECTED_PALINDROME_ABABAC, palindrome.findAllPalindromesUsingManachersAlgorithm(INPUT_ABABAC));
}
@Test
public void whenUsingCenterApproach_thenFindsAllPalindromes() {
assertEquals(EXPECTED_PALINDROME_BUBBLE, palindrome.findAllPalindromesUsingCenter(INPUT_BUBBLE));
assertEquals(EXPECTED_PALINDROME_INDEED, palindrome.findAllPalindromesUsingCenter(INPUT_INDEED));
assertEquals(EXPECTED_PALINDROME_CIVIC, palindrome.findAllPalindromesUsingCenter(INPUT_CIVIC));
assertEquals(EXPECTED_PALINDROME_ABABAC, palindrome.findAllPalindromesUsingCenter(INPUT_ABABAC));
}
@Test
public void whenUsingBruteForceApproach_thenFindsAllPalindromes() {
assertEquals(EXPECTED_PALINDROME_BUBBLE, palindrome.findAllPalindromesUsingBruteForceApproach(INPUT_BUBBLE));
assertEquals(EXPECTED_PALINDROME_INDEED, palindrome.findAllPalindromesUsingBruteForceApproach(INPUT_INDEED));
assertEquals(EXPECTED_PALINDROME_CIVIC, palindrome.findAllPalindromesUsingBruteForceApproach(INPUT_CIVIC));
assertEquals(EXPECTED_PALINDROME_ABABAC, palindrome.findAllPalindromesUsingBruteForceApproach(INPUT_ABABAC));
}
}

View File

@ -17,3 +17,4 @@
- [Round Up to the Nearest Hundred](https://www.baeldung.com/java-round-up-nearest-hundred)
- [Calculate Percentage in Java](https://www.baeldung.com/java-calculate-percentage)
- [Converting Between Byte Arrays and Hexadecimal Strings in Java](https://www.baeldung.com/java-byte-arrays-hex-strings)
- [Convert Latitude and Longitude to a 2D Point in Java](https://www.baeldung.com/java-convert-latitude-longitude)

View File

@ -1,9 +1,9 @@
<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>
<groupId>com.baeldung</groupId>
<artifactId>algorithms-miscellaneous-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>algorithms-miscellaneous-2</name>
<parent>
<groupId>com.baeldung</groupId>
@ -33,6 +33,11 @@
<artifactId>jgrapht-core</artifactId>
<version>${org.jgrapht.core.version}</version>
</dependency>
<dependency>
<groupId>org.jgrapht</groupId>
<artifactId>jgrapht-ext</artifactId>
<version>${org.jgrapht.ext.version}</version>
</dependency>
<dependency>
<groupId>pl.allegro.finance</groupId>
<artifactId>tradukisto</artifactId>
@ -83,6 +88,7 @@
<commons-math3.version>3.6.1</commons-math3.version>
<tradukisto.version>1.0.1</tradukisto.version>
<org.jgrapht.core.version>1.0.1</org.jgrapht.core.version>
<org.jgrapht.ext.version>1.0.1</org.jgrapht.ext.version>
<org.assertj.core.version>3.9.0</org.assertj.core.version>
<commons-codec.version>1.11</commons-codec.version>
</properties>

View File

@ -0,0 +1,47 @@
package com.baeldung.jgrapht;
import static org.junit.Assert.assertTrue;
import java.awt.Color;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import org.jgrapht.ext.JGraphXAdapter;
import org.jgrapht.graph.DefaultDirectedGraph;
import org.jgrapht.graph.DefaultEdge;
import org.junit.Before;
import org.junit.Test;
import com.mxgraph.layout.mxCircleLayout;
import com.mxgraph.layout.mxIGraphLayout;
import com.mxgraph.util.mxCellRenderer;
public class GraphImageGenerationUnitTest {
static DefaultDirectedGraph<String, DefaultEdge> g;
@Before
public void createGraph() throws IOException {
File imgFile = new File("src/test/resources/graph.png");
imgFile.createNewFile();
g = new DefaultDirectedGraph<String, DefaultEdge>(DefaultEdge.class);
String x1 = "x1";
String x2 = "x2";
String x3 = "x3";
g.addVertex(x1);
g.addVertex(x2);
g.addVertex(x3);
g.addEdge(x1, x2);
g.addEdge(x2, x3);
g.addEdge(x3, x1);
}
@Test
public void givenAdaptedGraph_whenWriteBufferedImage_ThenFileShouldExist() throws IOException {
JGraphXAdapter<String, DefaultEdge> graphAdapter = new JGraphXAdapter<String, DefaultEdge>(g);
mxIGraphLayout layout = new mxCircleLayout(graphAdapter);
layout.execute(graphAdapter.getDefaultParent());
File imgFile = new File("src/test/resources/graph.png");
BufferedImage image = mxCellRenderer.createBufferedImage(graphAdapter, null, 2, Color.WHITE, true, null);
ImageIO.write(image, "PNG", imgFile);
assertTrue(imgFile.exists());
}
}

Binary file not shown.

After

Width:  |  Height:  |  Size: 9.1 KiB

View File

@ -4,4 +4,4 @@
- [Merge Sort in Java](https://www.baeldung.com/java-merge-sort)
- [Quicksort Algorithm Implementation in Java](https://www.baeldung.com/java-quicksort)
- [Insertion Sort in Java](https://www.baeldung.com/java-insertion-sort)
- [Heap Sort in Java](https://www.baeldung.com/java-heap-sort)

View File

@ -1,9 +1,9 @@
<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>
<groupId>com.baeldung</groupId>
<artifactId>algorithms-sorting</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>algorithms-sorting</name>
<parent>
<groupId>com.baeldung</groupId>

View File

@ -34,7 +34,7 @@ public class MergeSort {
while (i < left && j < right) {
if (l[i] < r[j])
if (l[i] <= r[j])
a[k++] = l[i++];
else
a[k++] = r[j++];

View File

@ -3,7 +3,8 @@
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>annotation-processing</artifactId>
<name>annotation-processing</name>
<parent>
<groupId>com.baeldung</groupId>
<version>1.0.0-SNAPSHOT</version>

View File

@ -3,6 +3,7 @@
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>annotation-user</artifactId>
<name>annotation-user</name>
<parent>
<artifactId>annotations</artifactId>

View File

@ -4,7 +4,8 @@
<modelVersion>4.0.0</modelVersion>
<artifactId>annotations</artifactId>
<packaging>pom</packaging>
<name>annotations</name>
<parent>
<artifactId>parent-modules</artifactId>
<groupId>com.baeldung</groupId>

View File

@ -3,10 +3,9 @@
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>
<groupId>com.baeldung</groupId>
<artifactId>apache-avro</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>Apache Avro</name>
<name>apache-avro</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

View File

@ -4,7 +4,8 @@
<groupId>apache-bval</groupId>
<artifactId>apache-bval</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>apache-bval</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>

View File

@ -4,6 +4,7 @@
<artifactId>apache-curator</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>apache-curator</name>
<parent>
<groupId>com.baeldung</groupId>

View File

@ -2,7 +2,8 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>cxf-aegis</artifactId>
<name>cxf-aegis</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>apache-cxf</artifactId>

View File

@ -4,7 +4,8 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>cxf-introduction</artifactId>
<name>cxf-introduction</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>apache-cxf</artifactId>

View File

@ -4,7 +4,8 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>cxf-jaxrs-implementation</artifactId>
<name>cxf-jaxrs-implementation</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>apache-cxf</artifactId>

View File

@ -3,6 +3,7 @@
<modelVersion>4.0.0</modelVersion>
<artifactId>cxf-spring</artifactId>
<packaging>war</packaging>
<name>cxf-spring</name>
<parent>
<groupId>com.baeldung</groupId>

View File

@ -1,9 +1,9 @@
<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>
<groupId>com.baeldung</groupId>
<artifactId>apache-cxf</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>apache-cxf</name>
<packaging>pom</packaging>
<parent>

View File

@ -3,8 +3,8 @@
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>sse-jaxrs</artifactId>
<name>sse-jaxrs</name>
<packaging>pom</packaging>
<parent>

View File

@ -3,15 +3,15 @@
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>sse-jaxrs-client</artifactId>
<name>sse-jaxrs-client</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>sse-jaxrs</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>sse-jaxrs-client</artifactId>
<properties>
<cxf-version>3.2.0</cxf-version>
</properties>
@ -21,7 +21,6 @@
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.6.0</version>
<executions>
<execution>
<id>singleEvent</id>

View File

@ -3,16 +3,16 @@
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>sse-jaxrs-server</artifactId>
<name>sse-jaxrs-server</name>
<packaging>war</packaging>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>sse-jaxrs</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>sse-jaxrs-server</artifactId>
<packaging>war</packaging>
<properties>
<liberty-maven-plugin.version>2.4.2</liberty-maven-plugin.version>
<failOnMissingWebXml>false</failOnMissingWebXml>

View File

@ -3,11 +3,10 @@
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>
<groupId>com.baeldung</groupId>
<artifactId>apache-geode</artifactId>
<version>1.0-SNAPSHOT</version>
<name>apache-geode</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>

View File

@ -4,6 +4,7 @@
<modelVersion>4.0.0</modelVersion>
<artifactId>apache-opennlp</artifactId>
<version>1.0-SNAPSHOT</version>
<name>apache-opennlp</name>
<packaging>jar</packaging>
<parent>

View File

@ -1,9 +1,9 @@
<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>
<groupId>com.baeldung</groupId>
<artifactId>apache-poi</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>apache-poi</name>
<parent>
<groupId>com.baeldung</groupId>

3
apache-pulsar/README.md Normal file
View File

@ -0,0 +1,3 @@
### Relevant Articles:
- [Introduction to Apache Pulsar](https://www.baeldung.com/apache-pulsar)

View File

@ -1,21 +1,22 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung.pulsar</groupId>
<artifactId>pulsar-java</artifactId>
<version>0.0.1</version>
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung.pulsar</groupId>
<artifactId>apache-pulsar</artifactId>
<version>0.0.1</version>
<name>apache-pulsar</name>
<dependencies>
<dependency>
<groupId>org.apache.pulsar</groupId>
<artifactId>pulsar-client</artifactId>
<version>2.1.1-incubating</version>
<scope>compile</scope>
</dependency>
</dependencies>
<properties>
<maven.compiler.target>1.8</maven.compiler.target>
<maven.compiler.source>1.8</maven.compiler.source>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.pulsar</groupId>
<artifactId>pulsar-client</artifactId>
<version>2.1.1-incubating</version>
<scope>compile</scope>
</dependency>
</dependencies>
<properties>
<maven.compiler.target>1.8</maven.compiler.target>
<maven.compiler.source>1.8</maven.compiler.source>
</properties>
</project>

View File

@ -5,7 +5,8 @@
<modelVersion>4.0.0</modelVersion>
<artifactId>apache-shiro</artifactId>
<version>1.0-SNAPSHOT</version>
<name>apache-shiro</name>
<parent>
<artifactId>parent-boot-1</artifactId>
<groupId>com.baeldung</groupId>

View File

@ -1,9 +1,9 @@
<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>
<groupId>com.baeldung</groupId>
<artifactId>apache-thrift</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>apache-thrift</name>
<packaging>pom</packaging>
<parent>

View File

@ -1,10 +1,10 @@
<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>
<groupId>com.baeldung</groupId>
<artifactId>apache-tika</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>apache-tika</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>

View File

@ -1,9 +1,9 @@
<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>
<groupId>com.baeldung</groupId>
<artifactId>apache-zookeeper</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>apache-zookeeper</name>
<packaging>jar</packaging>
<parent>

View File

@ -5,6 +5,7 @@
<groupId>com.baeldung.examples</groupId>
<artifactId>asm</artifactId>
<version>1.0</version>
<name>asm</name>
<packaging>jar</packaging>
<parent>

View File

@ -4,7 +4,8 @@
<groupId>com.atomix.io</groupId>
<artifactId>atomix</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>atomix</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>

View File

@ -3,7 +3,8 @@
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>axon</artifactId>
<name>axon</name>
<parent>
<artifactId>parent-modules</artifactId>
<groupId>com.baeldung</groupId>

View File

@ -3,8 +3,9 @@
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>cas-server</artifactId>
<packaging>war</packaging>
<version>1.0</version>
<name>cas-server</name>
<packaging>war</packaging>
<parent>
<artifactId>parent-boot-1</artifactId>

View File

@ -1,3 +1,5 @@
### Relevant Articles:
- [CDI Interceptor vs Spring AspectJ](http://www.baeldung.com/cdi-interceptor-vs-spring-aspectj)
- [An Introduction to CDI (Contexts and Dependency Injection) in Java](http://www.baeldung.com/java-ee-cdi)
- [Introduction to the Event Notification Model in CDI 2.0](https://www.baeldung.com/cdi-event-notification)

View File

@ -2,10 +2,10 @@
<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>
<groupId>com.baeldung</groupId>
<artifactId>cdi</artifactId>
<version>1.0-SNAPSHOT</version>
<name>cdi</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-spring-4</artifactId>
@ -14,6 +14,16 @@
</parent>
<dependencies>
<dependency>
<groupId>javax.enterprise</groupId>
<artifactId>cdi-api</artifactId>
<version>${cdi-api.version}</version>
</dependency>
<dependency>
<groupId>org.jboss.weld.se</groupId>
<artifactId>weld-se-core</artifactId>
<version>${weld-se-core.version}</version>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-core</artifactId>
@ -42,11 +52,6 @@
<artifactId>aspectjweaver</artifactId>
<version>${aspectjweaver.version}</version>
</dependency>
<dependency>
<groupId>org.jboss.weld.se</groupId>
<artifactId>weld-se-core</artifactId>
<version>${weld-se-core.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
@ -54,13 +59,13 @@
<scope>test</scope>
</dependency>
</dependencies>
<properties>
<aspectjweaver.version>1.8.9</aspectjweaver.version>
<weld-se-core.version>2.4.1.Final</weld-se-core.version>
<cdi-api.version>2.0.SP1</cdi-api.version>
<weld-se-core.version>3.0.5.Final</weld-se-core.version>
<aspectjweaver.version>1.9.2</aspectjweaver.version>
<hamcrest-core.version>1.3</hamcrest-core.version>
<assertj-core.version>3.10.0</assertj-core.version>
<junit.version>4.12</junit.version>
<spring.version>5.1.2.RELEASE</spring.version>
</properties>
</project>

View File

@ -0,0 +1,15 @@
package com.baeldung.cdi.cdi2observers.application;
import com.baeldung.cdi.cdi2observers.events.ExampleEvent;
import javax.enterprise.inject.se.SeContainer;
import javax.enterprise.inject.se.SeContainerInitializer;
public class BootstrappingApplication {
public static void main(String... args) {
SeContainerInitializer containerInitializer = SeContainerInitializer.newInstance();
try (SeContainer container = containerInitializer.initialize()) {
container.getBeanManager().fireEvent(new ExampleEvent("Welcome to Baeldung!"));
}
}
}

View File

@ -0,0 +1,14 @@
package com.baeldung.cdi.cdi2observers.events;
public class ExampleEvent {
private final String eventMessage;
public ExampleEvent(String eventMessage) {
this.eventMessage = eventMessage;
}
public String getEventMessage() {
return eventMessage;
}
}

View File

@ -0,0 +1,14 @@
package com.baeldung.cdi.cdi2observers.events;
import javax.enterprise.event.Event;
import javax.inject.Inject;
public class ExampleEventSource {
@Inject
Event<ExampleEvent> exampleEvent;
public void fireEvent() {
exampleEvent.fireAsync(new ExampleEvent("Welcome to Baeldung!"));
}
}

View File

@ -0,0 +1,12 @@
package com.baeldung.cdi.cdi2observers.observers;
import com.baeldung.cdi.cdi2observers.events.ExampleEvent;
import javax.annotation.Priority;
import javax.enterprise.event.Observes;
public class AnotherExampleEventObserver {
public String onEvent(@Observes @Priority(2) ExampleEvent event) {
return event.getEventMessage();
}
}

View File

@ -0,0 +1,13 @@
package com.baeldung.cdi.cdi2observers.observers;
import com.baeldung.cdi.cdi2observers.events.ExampleEvent;
import com.baeldung.cdi.cdi2observers.services.TextService;
import javax.annotation.Priority;
import javax.enterprise.event.Observes;
public class ExampleEventObserver {
public String onEvent(@Observes @Priority(1) ExampleEvent event, TextService textService) {
return textService.parseText(event.getEventMessage());
}
}

View File

@ -0,0 +1,8 @@
package com.baeldung.cdi.cdi2observers.services;
public class TextService {
public String parseText(String text) {
return text.toUpperCase();
}
}

View File

@ -0,0 +1,14 @@
package com.baeldung.cdi.cdi2observers.tests;
import com.baeldung.cdi.cdi2observers.services.TextService;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class TextServiceUnitTest {
@Test
public void givenTextServiceInstance_whenCalledparseText_thenCorrect() {
TextService textService = new TextService();
assertThat(textService.parseText("Baeldung")).isEqualTo("BAELDUNG");
}
}

View File

@ -4,6 +4,7 @@
<modelVersion>4.0.0</modelVersion>
<artifactId>core-groovy</artifactId>
<version>1.0-SNAPSHOT</version>
<name>core-groovy</name>
<packaging>jar</packaging>
<parent>

View File

@ -4,3 +4,4 @@
- [Java 10 LocalVariable Type-Inference](http://www.baeldung.com/java-10-local-variable-type-inference)
- [Guide to Java 10](http://www.baeldung.com/java-10-overview)
- [Copy a List to Another List in Java](http://www.baeldung.com/java-copy-list-to-another)
- [Deep Dive Into the New Java JIT Compiler Graal](https://www.baeldung.com/graal-java-jit-compiler)

View File

@ -0,0 +1,12 @@
#!/usr/local/bin/java --source 11
import java.util.Arrays;
public class Addition
{
public static void main(String[] args) {
System.out.println(Arrays.stream(args)
.mapToInt(Integer::parseInt)
.sum());
}
}

View File

@ -33,3 +33,4 @@
- [An Overview of Regular Expressions Performance in Java](https://www.baeldung.com/java-regex-performance)
- [Java Primitives versus Objects](https://www.baeldung.com/java-primitives-vs-objects)
- [How to Use if/else Logic in Java 8 Streams](https://www.baeldung.com/java-8-streams-if-else-logic)
- [How to Replace Many if Statements in Java](https://www.baeldung.com/java-replace-if-statements)

View File

@ -0,0 +1,5 @@
package com.baeldung.interfaces.multiinheritance;
public abstract interface Fly{
void fly();
}

View File

@ -0,0 +1,5 @@
package com.baeldung.interfaces.multiinheritance;
public interface Transform {
void transform();
}

View File

@ -0,0 +1,13 @@
package com.baeldung.interfaces.multiinheritance;
public class Vehicle implements Fly, Transform {
@Override
public void fly() {
System.out.println("I can Fly!!");
}
@Override
public void transform() {
System.out.println("I can Transform!!");
}
}

View File

@ -0,0 +1,21 @@
package com.baeldung.interfaces.polymorphysim;
public class Circle implements Shape {
private double radius;
public Circle(double radius){
this.radius = radius;
}
@Override
public String name() {
return "Circle";
}
@Override
public double area() {
return Math.PI * (radius * radius);
}
}

View File

@ -0,0 +1,22 @@
package com.baeldung.interfaces.polymorphysim;
import java.util.ArrayList;
public class DisplayShape {
private ArrayList<Shape> shapes;
public DisplayShape() {
shapes = new ArrayList<>();
}
public void add(Shape shape) {
shapes.add(shape);
}
public void display() {
for (Shape shape : shapes) {
System.out.println(shape.name() + " area: " + shape.area());
}
}
}

View File

@ -0,0 +1,15 @@
package com.baeldung.interfaces.polymorphysim;
public class MainPolymorphic {
public static void main(String[] args){
Shape circleShape = new Circle(2);
Shape squareShape = new Square(2);
DisplayShape displayShape = new DisplayShape();
displayShape.add(circleShape);
displayShape.add(squareShape);
displayShape.display();
}
}

View File

@ -0,0 +1,6 @@
package com.baeldung.interfaces.polymorphysim;
public interface Shape {
public abstract String name();
public abstract double area();
}

View File

@ -0,0 +1,20 @@
package com.baeldung.interfaces.polymorphysim;
public class Square implements Shape {
private double width;
public Square(double width) {
this.width = width;
}
@Override
public String name() {
return "Square";
}
@Override
public double area() {
return width * width;
}
}

View File

@ -0,0 +1,17 @@
package com.baeldung.reducingIfElse;
public class AddCommand implements Command {
private int a;
private int b;
public AddCommand(int a, int b) {
this.a = a;
this.b = b;
}
@Override
public Integer execute() {
return a + b;
}
}

View File

@ -0,0 +1,21 @@
package com.baeldung.reducingIfElse;
public class AddRule implements Rule {
private int result;
@Override
public boolean evaluate(Expression expression) {
boolean evalResult = false;
if (expression.getOperator() == Operator.ADD) {
this.result = expression.getX() + expression.getY();
evalResult = true;
}
return evalResult;
}
@Override
public Result getResult() {
return new Result(result);
}
}

View File

@ -0,0 +1,8 @@
package com.baeldung.reducingIfElse;
public class Addition implements Operation {
@Override
public int apply(int a, int b) {
return a + b;
}
}

View File

@ -0,0 +1,83 @@
package com.baeldung.reducingIfElse;
public class Calculator {
public int calculate(int a, int b, String operator) {
int result = Integer.MIN_VALUE;
if ("add".equals(operator)) {
result = a + b;
} else if ("multiply".equals(operator)) {
result = a * b;
} else if ("divide".equals(operator)) {
result = a / b;
} else if ("subtract".equals(operator)) {
result = a - b;
} else if ("modulo".equals(operator)) {
result = a % b;
}
return result;
}
public int calculateUsingSwitch(int a, int b, String operator) {
int result = 0;
switch (operator) {
case "add":
result = a + b;
break;
case "multiply":
result = a * b;
break;
case "divide":
result = a / b;
break;
case "subtract":
result = a - b;
break;
case "modulo":
result = a % b;
break;
default:
result = Integer.MIN_VALUE;
}
return result;
}
public int calculateUsingSwitch(int a, int b, Operator operator) {
int result = 0;
switch (operator) {
case ADD:
result = a + b;
break;
case MULTIPLY:
result = a * b;
break;
case DIVIDE:
result = a / b;
break;
case SUBTRACT:
result = a - b;
break;
case MODULO:
result = a % b;
break;
default:
result = Integer.MIN_VALUE;
}
return result;
}
public int calculate(int a, int b, Operator operator) {
return operator.apply(a, b);
}
public int calculateUsingFactory(int a, int b, String operation) {
Operation targetOperation = OperatorFactory.getOperation(operation)
.orElseThrow(() -> new IllegalArgumentException("Invalid Operator"));
return targetOperation.apply(a, b);
}
public int calculate(Command command) {
return command.execute();
}
}

View File

@ -0,0 +1,5 @@
package com.baeldung.reducingIfElse;
public interface Command {
Integer execute();
}

View File

@ -0,0 +1,7 @@
package com.baeldung.reducingIfElse;
public class Division implements Operation {
@Override public int apply(int a, int b) {
return a / b;
}
}

View File

@ -0,0 +1,26 @@
package com.baeldung.reducingIfElse;
public class Expression {
private Integer x;
private Integer y;
private Operator operator;
public Expression(Integer x, Integer y, Operator operator) {
this.x = x;
this.y = y;
this.operator = operator;
}
public Integer getX() {
return x;
}
public Integer getY() {
return y;
}
public Operator getOperator() {
return operator;
}
}

View File

@ -0,0 +1,7 @@
package com.baeldung.reducingIfElse;
public class Modulo implements Operation {
@Override public int apply(int a, int b) {
return a % b;
}
}

View File

@ -0,0 +1,7 @@
package com.baeldung.reducingIfElse;
public class Multiplication implements Operation {
@Override public int apply(int a, int b) {
return 0;
}
}

View File

@ -0,0 +1,5 @@
package com.baeldung.reducingIfElse;
public interface Operation {
int apply(int a, int b);
}

View File

@ -0,0 +1,41 @@
package com.baeldung.reducingIfElse;
public enum Operator {
ADD {
@Override
public int apply(int a, int b) {
return a + b;
}
},
MULTIPLY {
@Override
public int apply(int a, int b) {
return a * b;
}
},
SUBTRACT {
@Override
public int apply(int a, int b) {
return a - b;
}
},
DIVIDE {
@Override
public int apply(int a, int b) {
return a / b;
}
},
MODULO {
@Override
public int apply(int a, int b) {
return a % b;
}
};
public abstract int apply(int a, int b);
}

View File

@ -0,0 +1,21 @@
package com.baeldung.reducingIfElse;
import java.util.HashMap;
import java.util.Map;
import java.util.Optional;
public class OperatorFactory {
static Map<String, Operation> operationMap = new HashMap<>();
static {
operationMap.put("add", new Addition());
operationMap.put("divide", new Division());
operationMap.put("multiply", new Multiplication());
operationMap.put("subtract", new Subtraction());
operationMap.put("modulo", new Modulo());
}
public static Optional<Operation> getOperation(String operation) {
return Optional.ofNullable(operationMap.get(operation));
}
}

View File

@ -0,0 +1,13 @@
package com.baeldung.reducingIfElse;
public class Result {
int value;
public Result(int value) {
this.value = value;
}
public int getValue() {
return value;
}
}

View File

@ -0,0 +1,8 @@
package com.baeldung.reducingIfElse;
public interface Rule {
boolean evaluate(Expression expression);
Result getResult();
}

View File

@ -0,0 +1,24 @@
package com.baeldung.reducingIfElse;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import java.util.stream.Collectors;
public class RuleEngine {
private static List<Rule> rules = new ArrayList<>();
static {
rules.add(new AddRule());
}
public Result process(Expression expression) {
Rule rule = rules.stream()
.filter(r -> r.evaluate(expression))
.findFirst()
.orElseThrow(() -> new IllegalArgumentException("Expression does not matches any Rule"));
return rule.getResult();
}
}

View File

@ -0,0 +1,7 @@
package com.baeldung.reducingIfElse;
public class Subtraction implements Operation {
@Override public int apply(int a, int b) {
return a - b;
}
}

View File

@ -0,0 +1,26 @@
package com.baeldung.interfaces;
import com.baeldung.interfaces.polymorphysim.Circle;
import com.baeldung.interfaces.polymorphysim.Shape;
import com.baeldung.interfaces.polymorphysim.Square;
import org.assertj.core.api.Assertions;
import org.junit.Test;
public class PolymorphysimUnitTest {
@Test
public void whenInterfacePointsToCircle_CircleAreaMethodisBeingCalled(){
double expectedArea = 12.566370614359172;
Shape circle = new Circle(2);
double actualArea = circle.area();
Assertions.assertThat(actualArea).isEqualTo(expectedArea);
}
@Test
public void whenInterfacePointsToSquare_SquareAreaMethodisBeingCalled(){
double expectedArea = 4;
Shape square = new Square(2);
double actualArea = square.area();
Assertions.assertThat(actualArea).isEqualTo(expectedArea);
}
}

View File

@ -0,0 +1,32 @@
package com.baeldung.reduceIfelse;
import com.baeldung.reducingIfElse.AddCommand;
import com.baeldung.reducingIfElse.Calculator;
import com.baeldung.reducingIfElse.Operator;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
public class CalculatorUnitTest {
@Test
public void whenCalculateUsingStringOperator_thenReturnCorrectResult() {
Calculator calculator = new Calculator();
int result = calculator.calculate(3, 4, "add");
assertEquals(7, result);
}
@Test
public void whenCalculateUsingEnumOperator_thenReturnCorrectResult() {
Calculator calculator = new Calculator();
int result = calculator.calculate(3, 4, Operator.valueOf("ADD"));
assertEquals(7, result);
}
@Test
public void whenCalculateUsingCommand_thenReturnCorrectResult() {
Calculator calculator = new Calculator();
int result = calculator.calculate(new AddCommand(3, 7));
assertEquals(10, result);
}
}

View File

@ -0,0 +1,23 @@
package com.baeldung.reduceIfelse;
import com.baeldung.reducingIfElse.Expression;
import com.baeldung.reducingIfElse.Operator;
import com.baeldung.reducingIfElse.Result;
import com.baeldung.reducingIfElse.RuleEngine;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
public class RuleEngineUnitTest {
@Test
public void whenNumbersGivenToRuleEngine_thenReturnCorrectResult() {
Expression expression = new Expression(5, 5, Operator.ADD);
RuleEngine engine = new RuleEngine();
Result result = engine.process(expression);
assertNotNull(result);
assertEquals(10, result.getValue());
}
}

View File

@ -1,7 +1,6 @@
<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>
<groupId>com.baeldung</groupId>
<artifactId>core-java-9</artifactId>
<version>0.2-SNAPSHOT</version>
<name>core-java-9</name>

25
core-java-arrays/.gitignore vendored Normal file
View File

@ -0,0 +1,25 @@
*.class
0.*
#folders#
/target
/neoDb*
/data
/src/main/webapp/WEB-INF/classes
*/META-INF/*
.resourceCache
# Packaged files #
*.jar
*.war
*.ear
# Files generated by integration tests
backup-pom.xml
/bin/
/temp
#IntelliJ specific
.idea/
*.iml

View File

@ -0,0 +1,15 @@
=========
## Core Java Arrays Cookbooks and Examples
### Relevant Articles:
- [How to Copy an Array in Java](http://www.baeldung.com/java-array-copy)
- [Check if a Java Array Contains a Value](http://www.baeldung.com/java-array-contains-value)
- [Initializing Arrays in Java](http://www.baeldung.com/java-initialize-array)
- [Guide to the java.util.Arrays Class](http://www.baeldung.com/java-util-arrays)
- [Jagged Arrays In Java](http://www.baeldung.com/java-jagged-arrays)
- [Find Sum and Average in a Java Array](http://www.baeldung.com/java-array-sum-average)
- [Arrays in Java: A Reference Guide](https://www.baeldung.com/java-arrays-guide)
- [How to Invert an Array in Java](http://www.baeldung.com/java-invert-array)
- [Array Operations in Java](http://www.baeldung.com/java-common-array-operations)
- [Intersection Between two Integer Arrays](https://www.baeldung.com/java-array-intersection)

412
core-java-arrays/pom.xml Normal file
View File

@ -0,0 +1,412 @@
<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>
<groupId>com.baeldung</groupId>
<artifactId>core-java-arrays</artifactId>
<version>0.1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>core-java-arrays</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-java</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-java</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>${commons-lang3.version}</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
<groupId>org.slf4j</groupId>
<artifactId>log4j-over-slf4j</artifactId>
<version>${org.slf4j.version}</version>
</dependency>
<!-- test scoped -->
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj-core.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.openjdk.jmh</groupId>
<artifactId>jmh-core</artifactId>
<version>${jmh-core.version}</version>
</dependency>
<dependency>
<groupId>org.openjdk.jmh</groupId>
<artifactId>jmh-generator-annprocess</artifactId>
<version>${jmh-generator-annprocess.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${springframework.spring-web.version}</version>
</dependency>
</dependencies>
<build>
<finalName>core-java-arrays</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<excludes>
<exclude>**/*LiveTest.java</exclude>
<exclude>**/*IntegrationTest.java</exclude>
<exclude>**/*IntTest.java</exclude>
<exclude>**/*LongRunningUnitTest.java</exclude>
<exclude>**/*ManualTest.java</exclude>
</excludes>
<testFailureIgnore>true</testFailureIgnore>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>prepare-package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/libs</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>${maven-jar-plugin.version}</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>libs/</classpathPrefix>
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
<configuration>
<archiveBaseDirectory>${project.basedir}</archiveBaseDirectory>
<archive>
<manifest>
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>${maven-shade-plugin.version}</version>
<executions>
<execution>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<shadedArtifactAttached>true</shadedArtifactAttached>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>com.jolira</groupId>
<artifactId>onejar-maven-plugin</artifactId>
<version>${onejar-maven-plugin.version}</version>
<executions>
<execution>
<configuration>
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
<attachToBuild>true</attachToBuild>
<filename>${project.build.finalName}-onejar.${project.packaging}</filename>
</configuration>
<goals>
<goal>one-jar</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>${spring-boot-maven-plugin.version}</version>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
<configuration>
<classifier>spring-boot</classifier>
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>${exec-maven-plugin.version}</version>
<configuration>
<executable>java</executable>
<mainClass>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</mainClass>
<arguments>
<argument>-Xmx300m</argument>
<argument>-XX:+UseParallelGC</argument>
<argument>-classpath</argument>
<classpath />
<argument>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</argument>
</arguments>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>${maven-javadoc-plugin.version}</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>integration</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<executions>
<execution>
<phase>integration-test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<excludes>
<exclude>**/*ManualTest.java</exclude>
</excludes>
<includes>
<include>**/*IntegrationTest.java</include>
<include>**/*IntTest.java</include>
</includes>
</configuration>
</execution>
</executions>
<configuration>
<systemPropertyVariables>
<test.mime>json</test.mime>
</systemPropertyVariables>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>${exec-maven-plugin.version}</version>
<executions>
<execution>
<id>run-benchmarks</id>
<!-- <phase>integration-test</phase> -->
<phase>none</phase>
<goals>
<goal>exec</goal>
</goals>
<configuration>
<classpathScope>test</classpathScope>
<executable>java</executable>
<arguments>
<argument>-classpath</argument>
<classpath />
<argument>org.openjdk.jmh.Main</argument>
<argument>.*</argument>
</arguments>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
<!-- java instrumentation profiles to build jars -->
<profile>
<id>buildAgentLoader</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>jar</goal>
</goals>
<configuration>
<classifier>agentLoader</classifier>
<classesDirectory>target/classes</classesDirectory>
<archive>
<manifest>
<addClasspath>true</addClasspath>
</manifest>
<manifestFile>${project.build.outputDirectory}/META-INF/MANIFEST.MF</manifestFile>
</archive>
<includes>
<include>com/baeldung/instrumentation/application/AgentLoader.class</include>
<include>com/baeldung/instrumentation/application/Launcher.class</include>
</includes>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>buildApplication</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>jar</goal>
</goals>
<configuration>
<classifier>application</classifier>
<classesDirectory>target/classes</classesDirectory>
<archive>
<manifest>
<addClasspath>true</addClasspath>
</manifest>
<manifestFile>${project.build.outputDirectory}/META-INF/MANIFEST.MF</manifestFile>
</archive>
<includes>
<include>com/baeldung/instrumentation/application/MyAtm.class</include>
<include>com/baeldung/instrumentation/application/MyAtmApplication.class</include>
<include>com/baeldung/instrumentation/application/Launcher.class</include>
</includes>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>buildAgent</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>jar</goal>
</goals>
<configuration>
<classifier>agent</classifier>
<classesDirectory>target/classes</classesDirectory>
<archive>
<manifest>
<addClasspath>true</addClasspath>
</manifest>
<manifestFile>${project.build.outputDirectory}/META-INF/MANIFEST.MF</manifestFile>
</archive>
<includes>
<include>com/baeldung/instrumentation/agent/AtmTransformer.class</include>
<include>com/baeldung/instrumentation/agent/MyInstrumentationAgent.class</include>
</includes>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>
<properties>
<!-- util -->
<commons-lang3.version>3.8.1</commons-lang3.version>
<lombok.version>1.16.12</lombok.version>
<jmh-core.version>1.19</jmh-core.version>
<jmh-generator-annprocess.version>1.19</jmh-generator-annprocess.version>
<!-- testing -->
<assertj-core.version>3.10.0</assertj-core.version>
<!-- maven and spring plugins -->
<maven-surefire-plugin.version>2.21.0</maven-surefire-plugin.version>
<springframework.spring-web.version>4.3.4.RELEASE</springframework.spring-web.version>
<maven-javadoc-plugin.version>3.0.0-M1</maven-javadoc-plugin.version>
<maven-jar-plugin.version>3.0.2</maven-jar-plugin.version>
<onejar-maven-plugin.version>1.4.4</onejar-maven-plugin.version>
<maven-shade-plugin.version>3.1.1</maven-shade-plugin.version>
<spring-boot-maven-plugin.version>2.0.3.RELEASE</spring-boot-maven-plugin.version>
<exec-maven-plugin.version>1.6.0</exec-maven-plugin.version>
</properties>
</project>

View File

@ -2,7 +2,7 @@ package com.baeldung.array;
import java.util.Arrays;
import org.apache.commons.lang.ArrayUtils;
import org.apache.commons.lang3.ArrayUtils;
public class ArrayInitializer {

View File

@ -4,11 +4,13 @@ import java.lang.reflect.Array;
import java.util.Arrays;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.LinkedList;
import java.util.Random;
import java.util.Set;
import java.util.function.Function;
import java.util.function.IntPredicate;
import java.util.function.Predicate;
import java.util.stream.Stream;
import org.apache.commons.lang3.ArrayUtils;
@ -194,4 +196,16 @@ public class ArrayOperations {
public static <T> T getRandomFromObjectArray(T[] array) {
return array[new Random().nextInt(array.length)];
}
public static Integer[] intersectionSimple(final Integer[] a, final Integer[] b){
return Stream.of(a).filter(Arrays.asList(b)::contains).toArray(Integer[]::new);
}
public static Integer[] intersectionSet(final Integer[] a, final Integer[] b){
return Stream.of(a).filter(Arrays.asList(b)::contains).distinct().toArray(Integer[]::new);
}
public static Integer[] intersectionMultiSet(final Integer[] a, final Integer[] b){
return Stream.of(a).filter(new LinkedList<>(Arrays.asList(b))::remove).toArray(Integer[]::new);
}
}

Some files were not shown because too many files have changed in this diff Show More