Move articles out of java-strings part5

java-strings/src/test/java/com/baeldung/string/StringUnitTest.java → core-java-modules/core-java-string-apis/src/test/java/com/baeldung/stringapi/StringUnitTest.java

@@ -1,16 +1,13 @@
-package com.baeldung.string;
+package com.baeldung.stringapi;
 
-import static org.junit.Assert.assertArrayEquals;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import org.junit.Test;
 
 import java.io.UnsupportedEncodingException;
 import java.nio.charset.StandardCharsets;
 import java.util.IllegalFormatException;
 import java.util.regex.PatternSyntaxException;
 
-import org.junit.Test;
+import static org.junit.Assert.*;
 
 public class StringUnitTest {
 

core-java-modules/core-java-strings/README.md

@@ -0,0 +1,14 @@
+## Java Strings
+
+This module contains articles about strings in Java.
+
+### Relevant Articles:
+- [Use char[] Array over a String for Manipulating Passwords in Java?](https://www.baeldung.com/java-storing-passwords)
+- [Compact Strings in Java 9](https://www.baeldung.com/java-9-compact-string)
+- [String Not Empty Test Assertions in Java](https://www.baeldung.com/java-assert-string-not-empty)
+- [String Performance Hints](https://www.baeldung.com/java-string-performance)
+- [Java Localization – Formatting Messages](https://www.baeldung.com/java-localization-messages-formatting)
+- [Java – Generate Random String](https://www.baeldung.com/java-random-string)
+- [Java String Interview Questions and Answers](https://www.baeldung.com/java-string-interview-questions)
+- [Java Multi-line String](https://www.baeldung.com/java-multiline-string)
+- [Guide to Java String Pool](https://www.baeldung.com/java-string-pool)

core-java-modules/core-java-strings/pom.xml

@@ -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-strings</artifactId>
+    <version>0.1.0-SNAPSHOT</version>
+    <packaging>jar</packaging>
+    <name>core-java-strings</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>${commons-lang3.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.openjdk.jmh</groupId>
+            <artifactId>jmh-core</artifactId>
+            <version>${jmh-core.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.openjdk.jmh</groupId>
+            <artifactId>jmh-generator-annprocess</artifactId>
+            <version>${jmh-generator.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.ibm.icu</groupId>
+            <artifactId>icu4j</artifactId>
+            <version>${icu4j.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <finalName>core-java-strings</finalName>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+    </build>
+
+    <properties>
+        <assertj.version>3.6.1</assertj.version>
+        <icu4j.version>61.1</icu4j.version>
+    </properties>
+
+</project>

java-strings/src/main/java/com/baeldung/java9/compactstring/CompactStringDemo.java → core-java-modules/core-java-strings/src/main/java/com/baeldung/java9/compactstring/CompactStringDemo.java

@@ -1,24 +1,25 @@
 package com.baeldung.java9.compactstring;
 
 import java.util.List;
-import static java.util.stream.Collectors.toList;
 import java.util.stream.IntStream;
 
+import static java.util.stream.Collectors.toList;
+
 public class CompactStringDemo {
 
     public static void main(String[] args) {
         long startTime = System.currentTimeMillis();
         List strings = IntStream.rangeClosed(1, 10_000_000)
           .mapToObj(Integer::toString).collect(toList());
         long totalTime = System.currentTimeMillis() - startTime;
-        System.out.println("Generated " + strings.size() + " strings in " 
+        System.out.println("Generated " + strings.size() + " strings in "
           + totalTime + " ms.");
 
         startTime = System.currentTimeMillis();
         String appended = (String) strings.stream().limit(100_000)
           .reduce("", (left, right) -> left.toString() + right.toString());
         totalTime = System.currentTimeMillis() - startTime;
-        System.out.println("Created string of length " + appended.length() 
+        System.out.println("Created string of length " + appended.length()
           + " in " + totalTime + " ms.");
     }
 }

java-strings-2/src/main/java/com/baeldung/localization/ICUFormat.java → core-java-modules/core-java-strings/src/main/java/com/baeldung/localization/ICUFormat.java

@@ -1,11 +1,11 @@
 package com.baeldung.localization;
 
+import com.ibm.icu.text.MessageFormat;
+
 import java.util.List;
 import java.util.Locale;
 import java.util.ResourceBundle;
 
-import com.ibm.icu.text.MessageFormat;
-
 public class ICUFormat {
 
     public static String getLabel(Locale locale, Object[] data) {

java-strings-2/src/main/java/com/baeldung/string/multiline/MultiLineString.java → core-java-modules/core-java-strings/src/main/java/com/baeldung/multiline/MultiLineString.java

@@ -1,14 +1,14 @@
-package com.baeldung.string.multiline;
+package com.baeldung.multiline;
+
+import com.google.common.base.Joiner;
+import com.google.common.collect.ImmutableList;
 
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.io.StringWriter;
 import java.nio.file.Files;
 import java.nio.file.Paths;
 
-import com.google.common.base.Joiner;
-import com.google.common.collect.ImmutableList;
-
 public class MultiLineString {
 
     String newLine = System.getProperty("line.separator");

java-strings/src/main/java/com/baeldung/string/StringPerformance.java → core-java-modules/core-java-strings/src/main/java/com/baeldung/stringperformance/StringPerformance.java

@@ -1,4 +1,4 @@
-package com.baeldung.string;
+package com.baeldung.stringperformance;
 
 import com.google.common.base.Splitter;
 import org.apache.commons.lang3.StringUtils;

java-strings-2/src/test/java/com/baeldung/string/interview/LocaleUnitTest.java → core-java-modules/core-java-strings/src/test/java/com/baeldung/interview/LocaleUnitTest.java

@@ -1,11 +1,12 @@
-package com.baeldung.string.interview;
+package com.baeldung.interview;
+
+import org.junit.Test;
 
 import java.math.BigDecimal;
 import java.text.NumberFormat;
 import java.util.Locale;
-import static org.junit.Assert.assertEquals;
 
-import org.junit.Test;
+import static org.junit.Assert.assertEquals;
 
 public class LocaleUnitTest {
     @Test

java-strings-2/src/test/java/com/baeldung/string/interview/StringAnagramUnitTest.java → core-java-modules/core-java-strings/src/test/java/com/baeldung/interview/StringAnagramUnitTest.java

@@ -1,10 +1,10 @@
-package com.baeldung.string.interview;
+package com.baeldung.interview;
 
-import static org.assertj.core.api.Assertions.assertThat;
+import org.junit.Test;
 
 import java.util.Arrays;
 
-import org.junit.Test;
+import static org.assertj.core.api.Assertions.assertThat;
 
 public class StringAnagramUnitTest {
     public boolean isAnagram(String s1, String s2) {

java-strings-2/src/test/java/com/baeldung/string/interview/StringChangeCaseUnitTest.java → core-java-modules/core-java-strings/src/test/java/com/baeldung/interview/StringChangeCaseUnitTest.java

@@ -1,9 +1,9 @@
-package com.baeldung.string.interview;
-
-import static org.junit.Assert.assertEquals;
+package com.baeldung.interview;
 
 import org.junit.Test;
 
+import static org.junit.Assert.assertEquals;
+
 public class StringChangeCaseUnitTest {
     @Test
     public void givenString_whenChangingToUppercase_thenCaseChanged() {

java-strings-2/src/test/java/com/baeldung/string/interview/StringCountOccurrencesUnitTest.java → core-java-modules/core-java-strings/src/test/java/com/baeldung/interview/StringCountOccurrencesUnitTest.java

@@ -1,9 +1,9 @@
-package com.baeldung.string.interview;
-
-import static org.junit.Assert.assertEquals;
+package com.baeldung.interview;
 
 import org.junit.Test;
 
+import static org.junit.Assert.assertEquals;
+
 public class StringCountOccurrencesUnitTest {
     public int countOccurrences(String s, char c) {
         int count = 0;

java-strings-2/src/test/java/com/baeldung/string/interview/StringFormatUnitTest.java → core-java-modules/core-java-strings/src/test/java/com/baeldung/interview/StringFormatUnitTest.java

@@ -1,9 +1,9 @@
-package com.baeldung.string.interview;
-
-import static org.junit.Assert.assertEquals;
+package com.baeldung.interview;
 
 import org.junit.Test;
 
+import static org.junit.Assert.assertEquals;
+
 public class StringFormatUnitTest {
     @Test
     public void givenString_whenUsingStringFormat_thenStringFormatted() {

java-strings-2/src/test/java/com/baeldung/string/interview/StringInternUnitTest.java → core-java-modules/core-java-strings/src/test/java/com/baeldung/interview/StringInternUnitTest.java

@@ -1,9 +1,9 @@
-package com.baeldung.string.interview;
-
-import static org.assertj.core.api.Assertions.assertThat;
+package com.baeldung.interview;
 
 import org.junit.Test;
 
+import static org.assertj.core.api.Assertions.assertThat;
+
 public class StringInternUnitTest {
     @Test
     public void whenCallingStringIntern_thenStringsInterned() {

java-strings-2/src/test/java/com/baeldung/string/interview/StringJoinerUnitTest.java → core-java-modules/core-java-strings/src/test/java/com/baeldung/interview/StringJoinerUnitTest.java

@@ -1,9 +1,10 @@
-package com.baeldung.string.interview;
+package com.baeldung.interview;
+
+import org.junit.Test;
 
 import java.util.StringJoiner;
-import static org.junit.Assert.assertEquals;
 
-import org.junit.Test;
+import static org.junit.Assert.assertEquals;
 
 public class StringJoinerUnitTest {
     @Test

java-strings-2/src/test/java/com/baeldung/string/interview/StringPalindromeUnitTest.java → core-java-modules/core-java-strings/src/test/java/com/baeldung/interview/StringPalindromeUnitTest.java

@@ -1,9 +1,9 @@
-package com.baeldung.string.interview;
-
-import static org.assertj.core.api.Assertions.assertThat;
+package com.baeldung.interview;
 
 import org.junit.Test;
 
+import static org.assertj.core.api.Assertions.assertThat;
+
 public class StringPalindromeUnitTest {
 
     public boolean isPalindrome(String text) {

java-strings-2/src/test/java/com/baeldung/string/interview/StringReverseUnitTest.java → core-java-modules/core-java-strings/src/test/java/com/baeldung/interview/StringReverseUnitTest.java

@@ -1,9 +1,9 @@
-package com.baeldung.string.interview;
-
-import static org.junit.Assert.assertEquals;
+package com.baeldung.interview;
 
 import org.junit.Test;
 
+import static org.junit.Assert.assertEquals;
+
 public class StringReverseUnitTest {
     @Test
     public void whenUsingInbuildMethods_thenStringReversed() {

java-strings-2/src/test/java/com/baeldung/string/interview/StringSplitUnitTest.java → core-java-modules/core-java-strings/src/test/java/com/baeldung/interview/StringSplitUnitTest.java

@@ -1,7 +1,8 @@
-package com.baeldung.string.interview;
+package com.baeldung.interview;
 
 import org.apache.commons.lang3.StringUtils;
 import org.junit.Test;
+
 import static org.junit.Assert.assertArrayEquals;
 
 public class StringSplitUnitTest {

java-strings-2/src/test/java/com/baeldung/string/interview/StringToByteArrayUnitTest.java → core-java-modules/core-java-strings/src/test/java/com/baeldung/interview/StringToByteArrayUnitTest.java

@@ -1,11 +1,11 @@
-package com.baeldung.string.interview;
+package com.baeldung.interview;
 
-import static org.junit.Assert.assertArrayEquals;
+import org.junit.Test;
 
 import java.io.UnsupportedEncodingException;
 import java.nio.charset.StandardCharsets;
 
-import org.junit.Test;
+import static org.junit.Assert.assertArrayEquals;
 
 public class StringToByteArrayUnitTest {
     @Test

java-strings-2/src/test/java/com/baeldung/string/interview/StringToCharArrayUnitTest.java → core-java-modules/core-java-strings/src/test/java/com/baeldung/interview/StringToCharArrayUnitTest.java

@@ -1,10 +1,10 @@
-package com.baeldung.string.interview;
+package com.baeldung.interview;
 
-import static org.junit.Assert.assertEquals;
+import org.junit.Test;
 
 import java.util.Arrays;
 
-import org.junit.Test;
+import static org.junit.Assert.assertEquals;
 
 public class StringToCharArrayUnitTest {
     @Test

java-strings-2/src/test/java/com/baeldung/string/interview/StringToIntegerUnitTest.java → core-java-modules/core-java-strings/src/test/java/com/baeldung/interview/StringToIntegerUnitTest.java

@@ -1,6 +1,7 @@
-package com.baeldung.string.interview;
+package com.baeldung.interview;
 
 import org.junit.Test;
+
 import static org.assertj.core.api.Assertions.assertThat;
 
 public class StringToIntegerUnitTest {

java-strings-2/src/test/java/com/baeldung/localization/ICUFormatUnitTest.java → core-java-modules/core-java-strings/src/test/java/com/baeldung/localization/ICUFormatUnitTest.java

@@ -1,12 +1,10 @@
 package com.baeldung.localization;
 
-import static org.junit.Assert.assertEquals;
+import org.junit.Test;
 
 import java.util.Locale;
 
-import org.junit.Test;
-
-import com.baeldung.localization.ICUFormat;
+import static org.junit.Assert.assertEquals;
 
 public class ICUFormatUnitTest {
 

java-strings-2/src/test/java/com/baeldung/string/multiline/MultiLineStringUnitTest.java → core-java-modules/core-java-strings/src/test/java/com/baeldung/multiline/MultiLineStringUnitTest.java

@@ -1,11 +1,10 @@
-package com.baeldung.string.multiline;
+package com.baeldung.multiline;
 
 import org.junit.Test;
-import static org.junit.Assert.assertEquals;
 
 import java.io.IOException;
 
-import com.baeldung.string.multiline.MultiLineString;
+import static org.junit.Assert.assertEquals;
 
 public class MultiLineStringUnitTest {