Find Repeating Elements

package Problems_on_Arrays;

import java.util.*;

public class FindRepeatingElements {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter the number of elements in the array:");
        int n = sc.nextInt();
        int[] arr = new int[n ];
        for (int i = 0; i < n; i++) {
            arr[i] = sc.nextInt();
        }
        HashMap<Integer,Integer> map=new HashMap<>();
        for (int i: arr){
            map.put(i,map.getOrDefault(i, 0)+1);
        }
        System.out.print("repeating elements in array are ");
        for (int i: map.keySet()){
            if (map.get(i)>1){
                System.out.print(i+" ");
            }
        }
        sc.close();
    }
    
}