Add DuplicateElements class to identify and print duplicate elements from a list using streams

Author: kumarcodes

src/main/java/com/java8/DuplicateElements.java

@@ -0,0 +1,16 @@
+package com.java8;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+public class DuplicateElements {
+    public static void main(String[] args) {
+        List<Integer> myList = Arrays.asList(10, 15, 8, 49, 25, 98, 98, 32,
+                15);
+        Set<Integer> uniqueSet = new HashSet<>();
+        myList.stream().filter(x->!uniqueSet.add(x)).forEach(System.out::println);
+
+    }
+}