Added Duplicates in an Array_java

Duplicates in an Array_java

@@ -0,0 +1,36 @@
+import java.util.HashSet;
+import java.util.Scanner;
+
+public class DuplicateCheck {
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+
+        System.out.print("Enter the number of elements: ");
+        int n = sc.nextInt();
+
+        int[] arr = new int[n];
+        System.out.println("Enter " + n + " elements:");
+        for (int i = 0; i < n; i++) {
+            arr[i] = sc.nextInt();
+        }
+
+        HashSet<Integer> seen = new HashSet<>();
+        boolean hasDuplicate = false;
+
+        for (int num : arr) {
+            if (seen.contains(num)) {
+                hasDuplicate = true;
+                break;
+            }
+            seen.add(num);
+        }
+
+        if (hasDuplicate) {
+            System.out.println("Duplicate elements found in the array.");
+        } else {
+            System.out.println("No duplicates found.");
+        }
+
+        sc.close();
+    }
+}