diff --git a/.idea/compiler.xml b/.idea/compiler.xml
index 0157d6258d..f0cf84067d 100644
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@@ -20,6 +20,7 @@
+
@@ -42,6 +43,7 @@
+
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
index 0b25056ada..4ba500396a 100644
--- a/.idea/encodings.xml
+++ b/.idea/encodings.xml
@@ -61,6 +61,8 @@
+
+
diff --git a/core-java-modules/core-java-11/pom.xml b/core-java-modules/core-java-11/pom.xml
index 3483ab54e7..edcfd3d231 100644
--- a/core-java-modules/core-java-11/pom.xml
+++ b/core-java-modules/core-java-11/pom.xml
@@ -20,7 +20,7 @@
com.google.guava
guava
- ${version.guava}
+ ${guava.version}
org.openjdk.jmh
diff --git a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/game/RockPaperScissorsGame.java b/core-java-modules/core-java-8-2/src/main/java/com/baeldung/game/RockPaperScissorsGame.java
deleted file mode 100644
index 17f0f02698..0000000000
--- a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/game/RockPaperScissorsGame.java
+++ /dev/null
@@ -1,73 +0,0 @@
-package com.baeldung.game;
-
-import java.util.*;
-
-class RockPaperScissorsGame {
-
- enum Move {
- ROCK("rock"),
- PAPER("paper"),
- SCISSORS("scissors");
-
- private String value;
-
- Move(String value) {
- this.value = value;
- }
-
- public String getValue() {
- return value;
- }
- }
-
- public static void main(String[] args) {
- Scanner scanner = new Scanner(System.in);
- int wins = 0;
- int losses = 0;
-
- System.out.println("Welcome to Rock-Paper-Scissors! Please enter \"rock\", \"paper\", \"scissors\", or \"quit\" to exit.");
-
- while (true) {
- System.out.println("-------------------------");
- System.out.print("Enter your move: ");
- String playerMove = scanner.nextLine();
-
- if (playerMove.equals("quit")) {
- System.out.println("You won " + wins + " times and lost " + losses + " times.");
- System.out.println("Thanks for playing! See you again.");
- break;
- }
-
- if (Arrays.stream(Move.values()).noneMatch(x -> x.getValue().equals(playerMove))) {
- System.out.println("Your move isn't valid!");
- continue;
- }
-
- String computerMove = getComputerMove();
-
- if (playerMove.equals(computerMove)) {
- System.out.println("It's a tie!");
- } else if (isPlayerWin(playerMove, computerMove)) {
- System.out.println("You won!");
- wins++;
- } else {
- System.out.println("You lost!");
- losses++;
- }
- }
- }
-
- private static boolean isPlayerWin(String playerMove, String computerMove) {
- return playerMove.equals(Move.ROCK.value) && computerMove.equals(Move.SCISSORS.value)
- || (playerMove.equals(Move.SCISSORS.value) && computerMove.equals(Move.PAPER.value))
- || (playerMove.equals(Move.PAPER.value) && computerMove.equals(Move.ROCK.value));
- }
-
- private static String getComputerMove() {
- Random random = new Random();
- int randomNumber = random.nextInt(3);
- String computerMove = Move.values()[randomNumber].getValue();
- System.out.println("Computer move: " + computerMove);
- return computerMove;
- }
-}
\ No newline at end of file
diff --git a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/interfaceVsAbstractClass/ChidlCircleInterfaceImpl.java b/core-java-modules/core-java-8-2/src/main/java/com/baeldung/interfaceVsAbstractClass/ChidlCircleInterfaceImpl.java
deleted file mode 100644
index 2aadf2e2e8..0000000000
--- a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/interfaceVsAbstractClass/ChidlCircleInterfaceImpl.java
+++ /dev/null
@@ -1,14 +0,0 @@
-package com.baeldung.interfaceVsAbstractClass;
-
-public class ChidlCircleInterfaceImpl implements CircleInterface {
- private String color;
-
- @Override
- public String getColor() {
- return color;
- }
-
- public void setColor(String color) {
- this.color = color;
- }
-}
diff --git a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/interfaceVsAbstractClass/ChildCircleClass.java b/core-java-modules/core-java-8-2/src/main/java/com/baeldung/interfaceVsAbstractClass/ChildCircleClass.java
deleted file mode 100644
index 8d26bda306..0000000000
--- a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/interfaceVsAbstractClass/ChildCircleClass.java
+++ /dev/null
@@ -1,5 +0,0 @@
-package com.baeldung.interfaceVsAbstractClass;
-
-public class ChildCircleClass extends CircleClass {
-
-}
diff --git a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/interfaceVsAbstractClass/CircleClass.java b/core-java-modules/core-java-8-2/src/main/java/com/baeldung/interfaceVsAbstractClass/CircleClass.java
deleted file mode 100644
index 048ffa4fe9..0000000000
--- a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/interfaceVsAbstractClass/CircleClass.java
+++ /dev/null
@@ -1,23 +0,0 @@
-package com.baeldung.interfaceVsAbstractClass;
-
-import java.util.Arrays;
-import java.util.List;
-
-public abstract class CircleClass {
-
- private String color;
- private List allowedColors = Arrays.asList("RED", "GREEN", "BLUE");
-
- public boolean isValid() {
- return allowedColors.contains(getColor());
- }
-
- public String getColor() {
- return color;
- }
-
- public void setColor(String color) {
- this.color = color;
- }
-
-}
diff --git a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/interfaceVsAbstractClass/CircleInterface.java b/core-java-modules/core-java-8-2/src/main/java/com/baeldung/interfaceVsAbstractClass/CircleInterface.java
deleted file mode 100644
index a0c3a6d9c6..0000000000
--- a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/interfaceVsAbstractClass/CircleInterface.java
+++ /dev/null
@@ -1,14 +0,0 @@
-package com.baeldung.interfaceVsAbstractClass;
-
-import java.util.Arrays;
-import java.util.List;
-
-public interface CircleInterface {
- List allowedColors = Arrays.asList("RED", "GREEN", "BLUE");
-
- String getColor();
-
- public default boolean isValid() {
- return allowedColors.contains(getColor());
- }
-}
diff --git a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/jarArguments/JarExample.java b/core-java-modules/core-java-8-2/src/main/java/com/baeldung/jarArguments/JarExample.java
deleted file mode 100644
index c2fb809790..0000000000
--- a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/jarArguments/JarExample.java
+++ /dev/null
@@ -1,18 +0,0 @@
-package com.baeldung.jarArguments;
-
-public class JarExample {
-
- public static void main(String[] args) {
- System.out.println("Hello Baeldung Reader in JarExample!");
-
- if(args == null) {
- System.out.println("You have not provided any arguments!");
- }else {
- System.out.println("There are "+args.length+" argument(s)!");
- for(int i=0; i locales = Arrays.asList(new Locale[] { Locale.UK, Locale.ITALY, Locale.FRANCE, Locale.forLanguageTag("pl-PL") });
- Localization.run(locales);
- JavaSEFormat.run(locales);
- ICUFormat.run(locales);
- }
-
-}
diff --git a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/localization/ICUFormat.java b/core-java-modules/core-java-8-2/src/main/java/com/baeldung/localization/ICUFormat.java
deleted file mode 100644
index f7bc357933..0000000000
--- a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/localization/ICUFormat.java
+++ /dev/null
@@ -1,29 +0,0 @@
-package com.baeldung.localization;
-
-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) {
- ResourceBundle bundle = ResourceBundle.getBundle("formats", locale);
- String format = bundle.getString("label-icu");
- MessageFormat formatter = new MessageFormat(format, locale);
- return formatter.format(data);
- }
-
- public static void run(List locales) {
- System.out.println("ICU formatter");
- locales.forEach(locale -> System.out.println(getLabel(locale, new Object[] { "Alice", "female", 0 })));
- locales.forEach(locale -> System.out.println(getLabel(locale, new Object[] { "Alice", "female", 1 })));
- locales.forEach(locale -> System.out.println(getLabel(locale, new Object[] { "Alice", "female", 2 })));
- locales.forEach(locale -> System.out.println(getLabel(locale, new Object[] { "Alice", "female", 3 })));
- locales.forEach(locale -> System.out.println(getLabel(locale, new Object[] { "Bob", "male", 0 })));
- locales.forEach(locale -> System.out.println(getLabel(locale, new Object[] { "Bob", "male", 1 })));
- locales.forEach(locale -> System.out.println(getLabel(locale, new Object[] { "Bob", "male", 2 })));
- locales.forEach(locale -> System.out.println(getLabel(locale, new Object[] { "Bob", "male", 3 })));
- }
-}
diff --git a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/localization/JavaSEFormat.java b/core-java-modules/core-java-8-2/src/main/java/com/baeldung/localization/JavaSEFormat.java
deleted file mode 100644
index c95dfffa13..0000000000
--- a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/localization/JavaSEFormat.java
+++ /dev/null
@@ -1,24 +0,0 @@
-package com.baeldung.localization;
-
-import java.text.MessageFormat;
-import java.util.Date;
-import java.util.List;
-import java.util.Locale;
-import java.util.ResourceBundle;
-
-public class JavaSEFormat {
-
- public static String getLabel(Locale locale, Object[] data) {
- ResourceBundle bundle = ResourceBundle.getBundle("formats", locale);
- final String pattern = bundle.getString("label");
- final MessageFormat formatter = new MessageFormat(pattern, locale);
- return formatter.format(data);
- }
-
- public static void run(List locales) {
- System.out.println("Java formatter");
- final Date date = new Date(System.currentTimeMillis());
- locales.forEach(locale -> System.out.println(getLabel(locale, new Object[] { date, "Alice", 0 })));
- locales.forEach(locale -> System.out.println(getLabel(locale, new Object[] { date, "Alice", 2 })));
- }
-}
diff --git a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/localization/Localization.java b/core-java-modules/core-java-8-2/src/main/java/com/baeldung/localization/Localization.java
deleted file mode 100644
index 17a6598ce0..0000000000
--- a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/localization/Localization.java
+++ /dev/null
@@ -1,18 +0,0 @@
-package com.baeldung.localization;
-
-import java.util.List;
-import java.util.Locale;
-import java.util.ResourceBundle;
-
-public class Localization {
-
- public static String getLabel(Locale locale) {
- final ResourceBundle bundle = ResourceBundle.getBundle("messages", locale);
- return bundle.getString("label");
- }
-
- public static void run(List locales) {
- locales.forEach(locale -> System.out.println(getLabel(locale)));
- }
-
-}
diff --git a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/stream/SkipLimitComparison.java b/core-java-modules/core-java-8-2/src/main/java/com/baeldung/stream/SkipLimitComparison.java
deleted file mode 100644
index 65f12ada45..0000000000
--- a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/stream/SkipLimitComparison.java
+++ /dev/null
@@ -1,46 +0,0 @@
-package com.baeldung.stream;
-
-import java.util.List;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
-
-public class SkipLimitComparison {
-
- public static void main(String[] args) {
- skipExample();
- limitExample();
- limitInfiniteStreamExample();
- getEvenNumbers(10, 10).stream()
- .forEach(System.out::println);
- }
-
- public static void skipExample() {
- Stream.of(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
- .filter(i -> i % 2 == 0)
- .skip(2)
- .forEach(i -> System.out.print(i + " "));
- }
-
- public static void limitExample() {
- Stream.of(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
- .filter(i -> i % 2 == 0)
- .limit(2)
- .forEach(i -> System.out.print(i + " "));
- }
-
- public static void limitInfiniteStreamExample() {
- Stream.iterate(0, i -> i + 1)
- .filter(i -> i % 2 == 0)
- .limit(10)
- .forEach(System.out::println);
- }
-
- private static List getEvenNumbers(int offset, int limit) {
- return Stream.iterate(0, i -> i + 1)
- .filter(i -> i % 2 == 0)
- .skip(offset)
- .limit(limit)
- .collect(Collectors.toList());
- }
-
-}
diff --git a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/uuid/UuidHelper.java b/core-java-modules/core-java-8-2/src/main/java/com/baeldung/uuid/UuidHelper.java
deleted file mode 100644
index 5807262094..0000000000
--- a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/uuid/UuidHelper.java
+++ /dev/null
@@ -1,33 +0,0 @@
-package com.baeldung.uuid;
-
-import java.nio.ByteBuffer;
-import java.util.Arrays;
-import java.util.UUID;
-
-public class UuidHelper {
-
- public static byte[] convertUUIDToBytes(UUID uuid) {
- ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
- bb.putLong(uuid.getMostSignificantBits());
- bb.putLong(uuid.getLeastSignificantBits());
- return bb.array();
- }
-
- public static UUID convertBytesToUUID(byte[] bytes) {
- ByteBuffer byteBuffer = ByteBuffer.wrap(bytes);
- long high = byteBuffer.getLong();
- long low = byteBuffer.getLong();
- return new UUID(high, low);
- }
-
- public static void main(String[] args) {
- UUID uuid = UUID.randomUUID();
- System.out.println("Original UUID: " + uuid);
-
- byte[] bytes = convertUUIDToBytes(uuid);
- System.out.println("Converted byte array: " + Arrays.toString(bytes));
-
- UUID uuidNew = convertBytesToUUID(bytes);
- System.out.println("Converted UUID: " + uuidNew);
- }
-}
diff --git a/core-java-modules/core-java-8-2/src/main/resources/META-INF/persistence.xml b/core-java-modules/core-java-8-2/src/main/resources/META-INF/persistence.xml
deleted file mode 100644
index c412ca0839..0000000000
--- a/core-java-modules/core-java-8-2/src/main/resources/META-INF/persistence.xml
+++ /dev/null
@@ -1,34 +0,0 @@
-
-
-
-
- Persist Optional Return Type Demo
- org.hibernate.jpa.HibernatePersistenceProvider
- com.baeldung.optionalreturntype.User
- com.baeldung.optionalreturntype.UserOptional
-
- true
-
-
-
-
-
-
-
-
-
-
-
-
-
\ No newline at end of file
diff --git a/core-java-modules/core-java-8-2/src/main/resources/example_manifest.txt b/core-java-modules/core-java-8-2/src/main/resources/example_manifest.txt
deleted file mode 100644
index 71abcb05fb..0000000000
--- a/core-java-modules/core-java-8-2/src/main/resources/example_manifest.txt
+++ /dev/null
@@ -1 +0,0 @@
-Main-Class: com.baeldung.jarArguments.JarExample
diff --git a/core-java-modules/core-java-8-2/src/main/resources/formats_en.properties b/core-java-modules/core-java-8-2/src/main/resources/formats_en.properties
deleted file mode 100644
index 41e0e00119..0000000000
--- a/core-java-modules/core-java-8-2/src/main/resources/formats_en.properties
+++ /dev/null
@@ -1,2 +0,0 @@
-label=On {0, date, short} {1} has sent you {2, choice, 0#no messages|1#a message|2#two messages|2<{2,number,integer} messages}.
-label-icu={0} has sent you {2, plural, =0 {no messages} =1 {a message} other {{2, number, integer} messages}}.
\ No newline at end of file
diff --git a/core-java-modules/core-java-8-2/src/main/resources/formats_fr.properties b/core-java-modules/core-java-8-2/src/main/resources/formats_fr.properties
deleted file mode 100644
index c2d5159b32..0000000000
--- a/core-java-modules/core-java-8-2/src/main/resources/formats_fr.properties
+++ /dev/null
@@ -1,2 +0,0 @@
-label={0, date, short}, {1}{2, choice, 0# ne|0<} vous a envoy {2, choice, 0#aucun message|1#un message|2#deux messages|2<{2,number,integer} messages}.
-label-icu={0} {2, plural, =0 {ne } other {}}vous a envoy {2, plural, =0 {aucun message} =1 {un message} other {{2, number, integer} messages}}.
\ No newline at end of file
diff --git a/core-java-modules/core-java-8-2/src/main/resources/formats_it.properties b/core-java-modules/core-java-8-2/src/main/resources/formats_it.properties
deleted file mode 100644
index 43fd1eee1c..0000000000
--- a/core-java-modules/core-java-8-2/src/main/resources/formats_it.properties
+++ /dev/null
@@ -1,2 +0,0 @@
-label={0, date, short} {1} ti ha inviato {2, choice, 0#nessun messagio|1#un messaggio|2#due messaggi|2<{2, number, integer} messaggi}.
-label-icu={0} {2, plural, =0 {non } other {}}ti ha inviato {2, plural, =0 {nessun messaggio} =1 {un messaggio} other {{2, number, integer} messaggi}}.
\ No newline at end of file
diff --git a/core-java-modules/core-java-8-2/src/main/resources/formats_pl.properties b/core-java-modules/core-java-8-2/src/main/resources/formats_pl.properties
deleted file mode 100644
index 9333ec3396..0000000000
--- a/core-java-modules/core-java-8-2/src/main/resources/formats_pl.properties
+++ /dev/null
@@ -1,2 +0,0 @@
-label=W {0, date, short} {1}{2, choice, 0# nie|0<} wys\u0142a\u0142a ci {2, choice, 0#\u017Cadnych wiadomo\u015Bci|1#wiadomo\u015B\u0107|2#dwie wiadomo\u015Bci|2<{2, number, integer} wiadomo\u015Bci}.
-label-icu={0} {2, plural, =0 {nie } other {}}{1, select, male {wys\u0142a\u0142} female {wys\u0142a\u0142a} other {wys\u0142a\u0142o}} ci {2, plural, =0 {\u017Cadnej wiadomo\u015Bci} =1 {wiadomo\u015B\u0107} other {{2, number, integer} wiadomo\u015Bci}}.
diff --git a/core-java-modules/core-java-8-2/src/main/resources/messages_en.properties b/core-java-modules/core-java-8-2/src/main/resources/messages_en.properties
deleted file mode 100644
index bcbca9483c..0000000000
--- a/core-java-modules/core-java-8-2/src/main/resources/messages_en.properties
+++ /dev/null
@@ -1 +0,0 @@
-label=Alice has sent you a message.
diff --git a/core-java-modules/core-java-8-2/src/main/resources/messages_fr.properties b/core-java-modules/core-java-8-2/src/main/resources/messages_fr.properties
deleted file mode 100644
index 6716102568..0000000000
--- a/core-java-modules/core-java-8-2/src/main/resources/messages_fr.properties
+++ /dev/null
@@ -1 +0,0 @@
-label=Alice vous a envoy un message.
\ No newline at end of file
diff --git a/core-java-modules/core-java-8-2/src/main/resources/messages_it.properties b/core-java-modules/core-java-8-2/src/main/resources/messages_it.properties
deleted file mode 100644
index 6929a8c091..0000000000
--- a/core-java-modules/core-java-8-2/src/main/resources/messages_it.properties
+++ /dev/null
@@ -1 +0,0 @@
-label=Alice ti ha inviato un messaggio.
\ No newline at end of file
diff --git a/core-java-modules/core-java-8-2/src/main/resources/messages_pl.properties b/core-java-modules/core-java-8-2/src/main/resources/messages_pl.properties
deleted file mode 100644
index 5515a9920e..0000000000
--- a/core-java-modules/core-java-8-2/src/main/resources/messages_pl.properties
+++ /dev/null
@@ -1 +0,0 @@
-label=Alice wys\u0142a\u0142a ci wiadomo\u015B\u0107.
\ No newline at end of file
diff --git a/core-java-modules/core-java-8-2/src/test/java/com/baeldung/bifunction/BiFunctionalInterfacesUnitTest.java b/core-java-modules/core-java-8-2/src/test/java/com/baeldung/bifunction/BiFunctionalInterfacesUnitTest.java
deleted file mode 100644
index 0ae59d9f77..0000000000
--- a/core-java-modules/core-java-8-2/src/test/java/com/baeldung/bifunction/BiFunctionalInterfacesUnitTest.java
+++ /dev/null
@@ -1,164 +0,0 @@
-package com.baeldung.bifunction;
-
-import org.junit.Test;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Comparator;
-import java.util.List;
-import java.util.function.BiFunction;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
-
-import static org.assertj.core.api.Assertions.assertThat;
-
-public class BiFunctionalInterfacesUnitTest {
- @Test
- public void givenStreamValues_whenMappedToNewValues() {
- List mapped = Stream.of("hello", "world")
- .map(word -> word + "!")
- .collect(Collectors.toList());
-
- assertThat(mapped).containsExactly("hello!", "world!");
- }
-
- @Test
- public void givenStreamValues_whenReducedWithPrefixingOperation() {
- String result = Stream.of("hello", "world")
- .reduce("", (a, b) -> b + "-" + a);
-
- assertThat(result).isEqualTo("world-hello-");
- }
-
- @Test
- public void givenStreamValues_whenReducedWithPrefixingLambda_thenHasNoTrailingDash() {
- String result = Stream.of("hello", "world")
- .reduce("", (a, b) -> combineWithoutTrailingDash(a, b));
-
- assertThat(result).isEqualTo("world-hello");
- }
-
- private String combineWithoutTrailingDash(String a, String b) {
- if (a.isEmpty()) {
- return b;
- }
- return b + "-" + a;
- }
-
- @Test
- public void givenStreamValues_whenReducedWithPrefixingMethodReference_thenHasNoTrailingDash() {
- String result = Stream.of("hello", "world")
- .reduce("", this::combineWithoutTrailingDash);
-
- assertThat(result).isEqualTo("world-hello");
- }
-
- @Test
- public void givenTwoLists_whenCombined() {
- List list1 = Arrays.asList("a", "b", "c");
- List list2 = Arrays.asList(1, 2, 3);
-
- List result = new ArrayList<>();
- for (int i=0; i < list1.size(); i++) {
- result.add(list1.get(i) + list2.get(i));
- }
-
- assertThat(result).containsExactly("a1", "b2", "c3");
- }
-
- @Test
- public void givenTwoLists_whenCombinedWithGeneralPurposeCombiner() {
- List list1 = Arrays.asList("a", "b", "c");
- List list2 = Arrays.asList(1, 2, 3);
-
- List result = listCombiner(list1, list2, (letter, number) -> letter + number);
-
- assertThat(result).containsExactly("a1", "b2", "c3");
- }
-
- private static List listCombiner(List list1,
- List list2,
- BiFunction combiner) {
- List result = new ArrayList<>();
- for (int i = 0; i < list1.size(); i++) {
- result.add(combiner.apply(list1.get(i), list2.get(i)));
- }
- return result;
- }
-
- @Test
- public void givenTwoLists_whenComparedWithCombiningFunction() {
- List list1 = Arrays.asList(1.0d, 2.1d, 3.3d);
- List list2 = Arrays.asList(0.1f, 0.2f, 4f);
-
- // algorithm to determine if the value in list1 > value in list 2
- List result = listCombiner(list1, list2, (doubleNumber, floatNumber) -> doubleNumber > floatNumber);
-
- assertThat(result).containsExactly(true, true, false);
- }
-
- @Test
- public void givenTwoLists_whenComparedWithCombiningFunctionByMethodReference() {
- List list1 = Arrays.asList(1.0d, 2.1d, 3.3d);
- List list2 = Arrays.asList(0.1f, 0.2f, 4f);
-
- // algorithm to determine if the value in list1 > value in list 2
- List result = listCombiner(list1, list2, this::firstIsGreaterThanSecond);
-
- assertThat(result).containsExactly(true, true, false);
- }
-
- private boolean firstIsGreaterThanSecond(Double a, Float b) {
- return a > b;
- }
-
- @Test
- public void givenTwoLists_whenComparedForEqualityByCombiningFunction() {
- List list1 = Arrays.asList(0.1f, 0.2f, 4f);
- List list2 = Arrays.asList(0.1f, 0.2f, 4f);
-
- List result = listCombiner(list1, list2, (float1, float2) -> float1.equals(float2));
-
- assertThat(result).containsExactly(true, true, true);
- }
-
- @Test
- public void givenTwoLists_whenComparedForEqualityByCombiningFunctionWithMethodReference() {
- List list1 = Arrays.asList(0.1f, 0.2f, 4f);
- List list2 = Arrays.asList(0.1f, 0.2f, 4f);
-
- List result = listCombiner(list1, list2, Float::equals);
-
- assertThat(result).containsExactly(true, true, true);
- }
-
- @Test
- public void givenTwoLists_whenComparedWithCombiningFunctionWithCompareTo() {
- List list1 = Arrays.asList(1.0d, 2.1d, 3.3d);
- List list2 = Arrays.asList(0.1d, 0.2d, 4d);
-
- List result = listCombiner(list1, list2, Double::compareTo);
-
- assertThat(result).containsExactly(1, 1, -1);
- }
-
- /**
- * Allows you to to pass in a lambda or method reference and then
- * get access to the BiFunction it is meant to become
- */
- private static BiFunction asBiFunction(BiFunction function) {
- return function;
- }
-
- @Test
- public void givenTwoLists_whenComparedWithCombiningFunctionWithComposedBiFunction() {
- List list1 = Arrays.asList(1.0d, 2.1d, 3.3d);
- List list2 = Arrays.asList(0.1d, 0.2d, 4d);
-
- List result = listCombiner(list1, list2,
- asBiFunction(Double::compareTo)
- .andThen(i -> i > 0));
-
- assertThat(result).containsExactly(true, true, false);
- }
-}
diff --git a/core-java-modules/core-java-8-2/src/test/java/com/baeldung/interfaceVsAbstractClass/InterfaceVsAbstractClassUnitTest.java b/core-java-modules/core-java-8-2/src/test/java/com/baeldung/interfaceVsAbstractClass/InterfaceVsAbstractClassUnitTest.java
deleted file mode 100644
index 8cba13ddeb..0000000000
--- a/core-java-modules/core-java-8-2/src/test/java/com/baeldung/interfaceVsAbstractClass/InterfaceVsAbstractClassUnitTest.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package com.baeldung.interfaceVsAbstractClass;
-
-import static org.junit.Assert.assertTrue;
-
-import org.junit.Test;
-
-public class InterfaceVsAbstractClassUnitTest {
- @Test
- public void givenAbstractClass_whenValidCircleUsed_thenPass() {
- CircleClass redCircle = new ChildCircleClass();
- redCircle.setColor("RED");
- assertTrue(redCircle.isValid());
- }
-
- @Test
- public void givenInterface_whenValidCircleWithoutStateUsed_thenPass() {
- ChidlCircleInterfaceImpl redCircleWithoutState = new ChidlCircleInterfaceImpl();
- redCircleWithoutState.setColor("RED");
- assertTrue(redCircleWithoutState.isValid());
- }
-}
diff --git a/core-java-modules/core-java-8-2/src/test/java/com/baeldung/localization/ICUFormatUnitTest.java b/core-java-modules/core-java-8-2/src/test/java/com/baeldung/localization/ICUFormatUnitTest.java
deleted file mode 100644
index 2c8f9b47f3..0000000000
--- a/core-java-modules/core-java-8-2/src/test/java/com/baeldung/localization/ICUFormatUnitTest.java
+++ /dev/null
@@ -1,74 +0,0 @@
-package com.baeldung.localization;
-
-import static org.junit.Assert.assertEquals;
-
-import java.util.Locale;
-
-import org.junit.Test;
-
-import com.baeldung.localization.ICUFormat;
-
-public class ICUFormatUnitTest {
-
- @Test
- public void givenInUK_whenAliceSendsNothing_thenCorrectMessage() {
- assertEquals("Alice has sent you no messages.", ICUFormat.getLabel(Locale.UK, new Object[] { "Alice", "female", 0 }));
- }
-
- @Test
- public void givenInUK_whenAliceSendsOneMessage_thenCorrectMessage() {
- assertEquals("Alice has sent you a message.", ICUFormat.getLabel(Locale.UK, new Object[] { "Alice", "female", 1 }));
- }
-
- @Test
- public void givenInUK_whenBobSendsSixMessages_thenCorrectMessage() {
- assertEquals("Bob has sent you 6 messages.", ICUFormat.getLabel(Locale.UK, new Object[] { "Bob", "male", 6 }));
- }
-
- @Test
- public void givenInItaly_whenAliceSendsNothing_thenCorrectMessage() {
- assertEquals("Alice non ti ha inviato nessun messaggio.", ICUFormat.getLabel(Locale.ITALY, new Object[] { "Alice", "female", 0 }));
- }
-
- @Test
- public void givenInItaly_whenAliceSendsOneMessage_thenCorrectMessage() {
- assertEquals("Alice ti ha inviato un messaggio.", ICUFormat.getLabel(Locale.ITALY, new Object[] { "Alice", "female", 1 }));
- }
-
- @Test
- public void givenInItaly_whenBobSendsSixMessages_thenCorrectMessage() {
- assertEquals("Bob ti ha inviato 6 messaggi.", ICUFormat.getLabel(Locale.ITALY, new Object[] { "Bob", "male", 6 }));
- }
-
- @Test
- public void givenInFrance_whenAliceSendsNothing_thenCorrectMessage() {
- assertEquals("Alice ne vous a envoyé aucun message.", ICUFormat.getLabel(Locale.FRANCE, new Object[] { "Alice", "female", 0 }));
- }
-
- @Test
- public void givenInFrance_whenAliceSendsOneMessage_thenCorrectMessage() {
- assertEquals("Alice vous a envoyé un message.", ICUFormat.getLabel(Locale.FRANCE, new Object[] { "Alice", "female", 1 }));
- }
-
- @Test
- public void givenInFrance_whenBobSendsSixMessages_thenCorrectMessage() {
- assertEquals("Bob vous a envoyé 6 messages.", ICUFormat.getLabel(Locale.FRANCE, new Object[] { "Bob", "male", 6 }));
- }
-
-
- @Test
- public void givenInPoland_whenAliceSendsNothing_thenCorrectMessage() {
- assertEquals("Alice nie wysłała ci żadnej wiadomości.", ICUFormat.getLabel(Locale.forLanguageTag("pl-PL"), new Object[] { "Alice", "female", 0 }));
- }
-
- @Test
- public void givenInPoland_whenAliceSendsOneMessage_thenCorrectMessage() {
- assertEquals("Alice wysłała ci wiadomość.", ICUFormat.getLabel(Locale.forLanguageTag("pl-PL"), new Object[] { "Alice", "female", 1 }));
- }
-
- @Test
- public void givenInPoland_whenBobSendsSixMessages_thenCorrectMessage() {
- assertEquals("Bob wysłał ci 6 wiadomości.", ICUFormat.getLabel(Locale.forLanguageTag("pl-PL"), new Object[] { "Bob", "male", 6 }));
- }
-
-}
diff --git a/core-java-modules/core-java-8/README.md b/core-java-modules/core-java-8/README.md
index 690997caa8..6a160683a1 100644
--- a/core-java-modules/core-java-8/README.md
+++ b/core-java-modules/core-java-8/README.md
@@ -18,4 +18,7 @@
- [Interface With Default Methods vs Abstract Class](https://www.baeldung.com/java-interface-default-method-vs-abstract-class)
- [Convert Between Byte Array and UUID in Java](https://www.baeldung.com/java-byte-array-to-uuid)
- [Create a Simple “Rock-Paper-Scissors” Game in Java](https://www.baeldung.com/java-rock-paper-scissors)
+- [VarArgs vs Array Input Parameters in Java](https://www.baeldung.com/varargs-vs-array)
+- [Lambda Expression vs. Anonymous Inner Class](https://www.baeldung.com/java-lambdas-vs-anonymous-class)
+- [Java Helper vs. Utility Classes](https://www.baeldung.com/java-helper-vs-utility-classes)
- [Java 8 开始新增的 Optional 类](https://www.ossez.com/t/java-8-optional/13964)
\ No newline at end of file
diff --git a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/anonymousclass/AnonymousClassExample.java b/core-java-modules/core-java-8/src/main/java/com/ossez/anonymousclass/AnonymousClassExample.java
similarity index 89%
rename from core-java-modules/core-java-8-2/src/main/java/com/baeldung/anonymousclass/AnonymousClassExample.java
rename to core-java-modules/core-java-8/src/main/java/com/ossez/anonymousclass/AnonymousClassExample.java
index 1ea85942ee..f029bbb963 100644
--- a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/anonymousclass/AnonymousClassExample.java
+++ b/core-java-modules/core-java-8/src/main/java/com/ossez/anonymousclass/AnonymousClassExample.java
@@ -1,4 +1,4 @@
-package com.baeldung.anonymousclass;
+package com.ossez.anonymousclass;
public class AnonymousClassExample{
diff --git a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/argsVsvarargs/StringArrayAndVarargs.java b/core-java-modules/core-java-8/src/main/java/com/ossez/argsVsvarargs/StringArrayAndVarargs.java
similarity index 93%
rename from core-java-modules/core-java-8-2/src/main/java/com/baeldung/argsVsvarargs/StringArrayAndVarargs.java
rename to core-java-modules/core-java-8/src/main/java/com/ossez/argsVsvarargs/StringArrayAndVarargs.java
index dc9137646f..1a8ed48021 100644
--- a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/argsVsvarargs/StringArrayAndVarargs.java
+++ b/core-java-modules/core-java-8/src/main/java/com/ossez/argsVsvarargs/StringArrayAndVarargs.java
@@ -1,4 +1,4 @@
-package com.baeldung.argsVsvarargs;
+package com.ossez.argsVsvarargs;
public class StringArrayAndVarargs {
public static void capitalizeNames(String[] args) {
diff --git a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/helpervsutilityclasses/MyHelperClass.java b/core-java-modules/core-java-8/src/main/java/com/ossez/helpervsutilityclasses/MyHelperClass.java
similarity index 95%
rename from core-java-modules/core-java-8-2/src/main/java/com/baeldung/helpervsutilityclasses/MyHelperClass.java
rename to core-java-modules/core-java-8/src/main/java/com/ossez/helpervsutilityclasses/MyHelperClass.java
index 40b58bf200..3c5b3c20aa 100644
--- a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/helpervsutilityclasses/MyHelperClass.java
+++ b/core-java-modules/core-java-8/src/main/java/com/ossez/helpervsutilityclasses/MyHelperClass.java
@@ -1,4 +1,4 @@
-package com.baeldung.helpervsutilityclasses;
+package com.ossez.helpervsutilityclasses;
class MyHelperClass {
public double discount;
diff --git a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/helpervsutilityclasses/MyUtilityClass.java b/core-java-modules/core-java-8/src/main/java/com/ossez/helpervsutilityclasses/MyUtilityClass.java
similarity index 90%
rename from core-java-modules/core-java-8-2/src/main/java/com/baeldung/helpervsutilityclasses/MyUtilityClass.java
rename to core-java-modules/core-java-8/src/main/java/com/ossez/helpervsutilityclasses/MyUtilityClass.java
index 1f0075995c..f846aef885 100644
--- a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/helpervsutilityclasses/MyUtilityClass.java
+++ b/core-java-modules/core-java-8/src/main/java/com/ossez/helpervsutilityclasses/MyUtilityClass.java
@@ -1,4 +1,4 @@
-package com.baeldung.helpervsutilityclasses;
+package com.ossez.helpervsutilityclasses;
public final class MyUtilityClass {
diff --git a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/lambdaexpression/LambdaExpressionExample.java b/core-java-modules/core-java-8/src/main/java/com/ossez/lambdaexpression/LambdaExpressionExample.java
similarity index 85%
rename from core-java-modules/core-java-8-2/src/main/java/com/baeldung/lambdaexpression/LambdaExpressionExample.java
rename to core-java-modules/core-java-8/src/main/java/com/ossez/lambdaexpression/LambdaExpressionExample.java
index 95128b934c..daca78512a 100644
--- a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/lambdaexpression/LambdaExpressionExample.java
+++ b/core-java-modules/core-java-8/src/main/java/com/ossez/lambdaexpression/LambdaExpressionExample.java
@@ -1,4 +1,4 @@
-package com.baeldung.lambdaexpression;
+package com.ossez.lambdaexpression;
public class LambdaExpressionExample{
diff --git a/core-java-modules/core-java-8/src/main/java/com/ossez/localization/App.java b/core-java-modules/core-java-8/src/main/java/com/ossez/localization/App.java
index f1fee46776..bf99289272 100644
--- a/core-java-modules/core-java-8/src/main/java/com/ossez/localization/App.java
+++ b/core-java-modules/core-java-8/src/main/java/com/ossez/localization/App.java
@@ -5,6 +5,7 @@ import java.util.List;
import java.util.Locale;
public class App {
+
/**
* Runs all available formatter
*
diff --git a/core-java-modules/core-java-8-2/src/test/java/com/baeldung/argsVsvarargs/StringArrayAndVarargsUnitTest.java b/core-java-modules/core-java-8/src/test/java/com/ossez/argsVsvarargs/StringArrayAndVarargsUnitTest.java
similarity index 77%
rename from core-java-modules/core-java-8-2/src/test/java/com/baeldung/argsVsvarargs/StringArrayAndVarargsUnitTest.java
rename to core-java-modules/core-java-8/src/test/java/com/ossez/argsVsvarargs/StringArrayAndVarargsUnitTest.java
index f917373229..8521f70250 100644
--- a/core-java-modules/core-java-8-2/src/test/java/com/baeldung/argsVsvarargs/StringArrayAndVarargsUnitTest.java
+++ b/core-java-modules/core-java-8/src/test/java/com/ossez/argsVsvarargs/StringArrayAndVarargsUnitTest.java
@@ -1,7 +1,7 @@
-package com.baeldung.argsVsvarargs;
+package com.ossez.argsVsvarargs;
-import static com.baeldung.argsVsvarargs.StringArrayAndVarargs.capitalizeNames;
-import static com.baeldung.argsVsvarargs.StringArrayAndVarargs.firstLetterOfWords;
+import static com.ossez.argsVsvarargs.StringArrayAndVarargs.capitalizeNames;
+import static com.ossez.argsVsvarargs.StringArrayAndVarargs.firstLetterOfWords;
import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
diff --git a/core-java-modules/core-java-8/src/test/java/com/ossez/bifunction/BiFunctionalInterfacesUnitTest.java b/core-java-modules/core-java-8/src/test/java/com/ossez/bifunction/BiFunctionalInterfacesUnitTest.java
index c20fcdf5a4..eae9a66b39 100644
--- a/core-java-modules/core-java-8/src/test/java/com/ossez/bifunction/BiFunctionalInterfacesUnitTest.java
+++ b/core-java-modules/core-java-8/src/test/java/com/ossez/bifunction/BiFunctionalInterfacesUnitTest.java
@@ -4,7 +4,6 @@ import org.junit.Test;
import java.util.ArrayList;
import java.util.Arrays;
-import java.util.Comparator;
import java.util.List;
import java.util.function.BiFunction;
import java.util.stream.Collectors;
@@ -71,7 +70,7 @@ public class BiFunctionalInterfacesUnitTest {
List list1 = Arrays.asList("a", "b", "c");
List list2 = Arrays.asList(1, 2, 3);
- List result = listCombiner(list1, list2, (a, b) -> a + b);
+ List result = listCombiner(list1, list2, (letter, number) -> letter + number);
assertThat(result).containsExactly("a1", "b2", "c3");
}
@@ -92,7 +91,7 @@ public class BiFunctionalInterfacesUnitTest {
List list2 = Arrays.asList(0.1f, 0.2f, 4f);
// algorithm to determine if the value in list1 > value in list 2
- List result = listCombiner(list1, list2, (a, b) -> a > b);
+ List result = listCombiner(list1, list2, (doubleNumber, floatNumber) -> doubleNumber > floatNumber);
assertThat(result).containsExactly(true, true, false);
}
@@ -117,7 +116,7 @@ public class BiFunctionalInterfacesUnitTest {
List list1 = Arrays.asList(0.1f, 0.2f, 4f);
List list2 = Arrays.asList(0.1f, 0.2f, 4f);
- List result = listCombiner(list1, list2, (a, b) -> a.equals(b));
+ List result = listCombiner(list1, list2, (float1, float2) -> float1.equals(float2));
assertThat(result).containsExactly(true, true, true);
}
diff --git a/core-java-modules/core-java-8-2/src/test/java/com/baeldung/helpervsutilityclasses/MyHelperClassUnitTest.java b/core-java-modules/core-java-8/src/test/java/com/ossez/helpervsutilityclasses/MyHelperClassUnitTest.java
similarity index 92%
rename from core-java-modules/core-java-8-2/src/test/java/com/baeldung/helpervsutilityclasses/MyHelperClassUnitTest.java
rename to core-java-modules/core-java-8/src/test/java/com/ossez/helpervsutilityclasses/MyHelperClassUnitTest.java
index a0c1afea52..52c37a2a75 100644
--- a/core-java-modules/core-java-8-2/src/test/java/com/baeldung/helpervsutilityclasses/MyHelperClassUnitTest.java
+++ b/core-java-modules/core-java-8/src/test/java/com/ossez/helpervsutilityclasses/MyHelperClassUnitTest.java
@@ -1,4 +1,4 @@
-package com.baeldung.helpervsutilityclasses;
+package com.ossez.helpervsutilityclasses;
import static org.junit.jupiter.api.Assertions.*;
diff --git a/core-java-modules/core-java-8-2/src/test/java/com/baeldung/helpervsutilityclasses/MyUtilityClassUnitTest.java b/core-java-modules/core-java-8/src/test/java/com/ossez/helpervsutilityclasses/MyUtilityClassUnitTest.java
similarity index 88%
rename from core-java-modules/core-java-8-2/src/test/java/com/baeldung/helpervsutilityclasses/MyUtilityClassUnitTest.java
rename to core-java-modules/core-java-8/src/test/java/com/ossez/helpervsutilityclasses/MyUtilityClassUnitTest.java
index 8b29f51959..2f06b3652d 100644
--- a/core-java-modules/core-java-8-2/src/test/java/com/baeldung/helpervsutilityclasses/MyUtilityClassUnitTest.java
+++ b/core-java-modules/core-java-8/src/test/java/com/ossez/helpervsutilityclasses/MyUtilityClassUnitTest.java
@@ -1,4 +1,4 @@
-package com.baeldung.helpervsutilityclasses;
+package com.ossez.helpervsutilityclasses;
import static org.junit.jupiter.api.Assertions.*;
diff --git a/core-java-modules/core-java-8/src/test/java/com/ossez/localization/ICUFormatUnitTest.java b/core-java-modules/core-java-8/src/test/java/com/ossez/localization/ICUFormatUnitTest.java
index 3aef525e91..33ace5deeb 100644
--- a/core-java-modules/core-java-8/src/test/java/com/ossez/localization/ICUFormatUnitTest.java
+++ b/core-java-modules/core-java-8/src/test/java/com/ossez/localization/ICUFormatUnitTest.java
@@ -6,6 +6,8 @@ import java.util.Locale;
import org.junit.Test;
+import com.ossez.localization.ICUFormat;
+
public class ICUFormatUnitTest {
@Test
diff --git a/core-java-modules/core-java-collections-list-2/pom.xml b/core-java-modules/core-java-collections-list-2/pom.xml
index 2b3c00601e..574c761ad5 100644
--- a/core-java-modules/core-java-collections-list-2/pom.xml
+++ b/core-java-modules/core-java-collections-list-2/pom.xml
@@ -8,9 +8,9 @@
core-java-collections-list-2
- com.baeldung.core-java-modules
+ com.ossez.core-java-modules
core-java-modules
- 0.0.1-SNAPSHOT
+ 0.0.2-SNAPSHOT
diff --git a/core-java-modules/core-java-numbers/pom.xml b/core-java-modules/core-java-numbers/pom.xml
index debc90638e..2bb6060e9b 100644
--- a/core-java-modules/core-java-numbers/pom.xml
+++ b/core-java-modules/core-java-numbers/pom.xml
@@ -8,9 +8,9 @@
core-java-numbers
- com.baeldung.core-java-modules
+ com.ossez.core-java-modules
core-java-modules
- 0.0.1-SNAPSHOT
+ 0.0.2-SNAPSHOT
diff --git a/persistence-modules/spring-data-jpa-repo-2/pom.xml b/persistence-modules/spring-data-jpa-repo-2/pom.xml
index aac12db474..a32cc1e888 100644
--- a/persistence-modules/spring-data-jpa-repo-2/pom.xml
+++ b/persistence-modules/spring-data-jpa-repo-2/pom.xml
@@ -42,7 +42,7 @@
com.google.guava
guava
- ${version.guava}
+ ${guava.version}
diff --git a/persistence-modules/spring-data-jpa-repo/pom.xml b/persistence-modules/spring-data-jpa-repo/pom.xml
index 2ead30e7da..5e114ba565 100644
--- a/persistence-modules/spring-data-jpa-repo/pom.xml
+++ b/persistence-modules/spring-data-jpa-repo/pom.xml
@@ -7,7 +7,7 @@
spring-data-jpa-repo
- com.baeldung
+ com.ossez
parent-boot-3
0.0.1-SNAPSHOT
../../parent-boot-3
diff --git a/pom.xml b/pom.xml
index 75bae43378..02ec984661 100644
--- a/pom.xml
+++ b/pom.xml
@@ -77,7 +77,7 @@
3.0.0
- 31.1-jre
+ 31.1-jre
1.18.28
2.12.5
1.2.0