Duplicates_InArray.java

// WAP to find the duplicate elements in an Array
import java.util.Scanner;

public class Duplicates_InArray {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter the size of the Array: ");
        int n = sc.nextInt();
        int[] arr = new int[n];
        for (int i = 0; i < n; i++) {
            arr[i] = sc.nextInt();
        }
        int [] counts = new int[100]; // Assuming the array elements are in the range 0-99
        System.out.print("Duplicate elements are: ");
        boolean foundDuplicates = false;
        for (int i = 0; i < n; i++) {
            counts[arr[i]]++; // Increment the count for each element
            if (counts[arr[i]] == 2) { // Print only when the count becomes 2
                System.out.print(arr[i] + " ");
                foundDuplicates = true;
            }
        }
        if(!foundDuplicates){
            System.out.println("None");
        }
    }
}