BAEL-5463: added code for for-each loop in Java. (eugenp#11960)

vaibhav007jain · web-flow · commit 32f98e9fb51b · 2022-03-27T09:03:29.000+05:30
diff --git a/core-java-modules/core-java-lang-syntax-2/src/main/java/com/baeldung/core/controlstructures/loops/ForEachLoop.java b/core-java-modules/core-java-lang-syntax-2/src/main/java/com/baeldung/core/controlstructures/loops/ForEachLoop.java
@@ -0,0 +1,57 @@
+package com.baeldung.core.controlstructures.loops;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+public class ForEachLoop {
+
+    public static void main(String[] args) {
+
+        int[] numbers = { 1, 2, 3, 4, 5 };
+        List<String> wordsList = new ArrayList<>();
+        wordsList.add("Java");
+        wordsList.add("is");
+        wordsList.add("great!");
+
+        Set<String> wordsSet = new HashSet<>();
+        wordsSet.addAll(wordsList);
+
+        Map<Integer, String> map = new HashMap<>();
+        map.put(1, "Java");
+        map.put(2, "is");
+        map.put(3, "great!");
+
+        traverseArray(numbers);
+        traverseList(wordsList);
+        traverseSet(wordsSet);
+        traverseMap(map);
+    }
+
+    private static void traverseMap(Map<Integer, String> map) {
+        for (Map.Entry<Integer, String> entry : map.entrySet()) {
+            System.out.println("number: " + entry.getKey() + " - " + "word: " + entry.getValue());
+        }
+    }
+
+    private static void traverseSet(Set<String> wordsSet) {
+        for (String word : wordsSet) {
+            System.out.println(word + " ");
+        }
+    }
+
+    private static void traverseList(List<String> wordsList) {
+        for (String word : wordsList) {
+            System.out.println(word + " ");
+        }
+    }
+
+    private static void traverseArray(int[] numbers) {
+        for (int number : numbers) {
+            System.out.println(number + " ");
+        }
+    }
+}
