Add example code (#18376)

Author: LeoHelfferich

core-java-modules/core-java-23/src/main/java/com/baeldung/javafeatures/LabeledBreakAndContinueJava.java

@@ -0,0 +1,50 @@
+void main() {
+
+    System.out.println("Basics:");
+    showBasicBehaviour();
+
+    // ---
+
+    List<List<String>> listOfLists = List.of((List.of("here")));
+
+    var findByBreak = findByBreak(listOfLists, "target");
+    System.out.println("findByBreak: " + findByBreak);
+
+    var findByStreams = findByStreams(listOfLists, "target");
+    System.out.println("findByStreams: " + findByStreams);
+}
+
+private void showBasicBehaviour() {
+    outer:
+    // <-- // label
+    for (int i = 0; i < 5; i++) {
+        for (int j = 0; j < 5; j++) {
+            System.out.println(i + ", " + j);
+            if (j == 2) {
+                break outer; // exits outer loop
+            }
+        }
+    }
+}
+
+private boolean findByBreak(List<List<String>> listOfLists, String target) {
+    boolean containsExists = false;
+
+    outer:
+    for (List<String> parent : listOfLists) {
+        for (String child : parent) {
+            if (child.contains(target)) {
+                containsExists = true;
+                break outer;
+            }
+        }
+    }
+
+    return containsExists;
+}
+
+private boolean findByStreams(List<List<String>> listOfLists, String target) {
+    return listOfLists.stream()
+        .flatMap(Collection::stream)
+        .anyMatch(child -> child.contains(target));
+}

core-java-modules/core-java-23/src/main/java/com/baeldung/javafeatures/LabeledBreakAndContinueKotlin.kt

@@ -0,0 +1,10 @@
+package com.baeldung.javafeatures
+
+fun main() {
+    outer@ for (i in 1..5) {
+        for (j in 1..5) {
+            if (j == 2) break@outer
+            println("$i, $j")
+        }
+    }
+}