CheckDuplicatesUsingTwoLoops.java

import java.util.Arrays;

public class CheckDuplicatesUsingTwoLoops {
    public void hasDuplicates2ForLoops(int [] arrA) {

        for (int i = 0; i < arrA.length; i++) {
            for (int j = i+1; j < arrA.length; j++) {
                if(arrA[i]==arrA[j]){
                    System.out.println("Array has duplicates : " + arrA[i]);
                }
            }
        }
    }
    public static void main(String[] args) {
        int a [] = {1, 6, 5, 2, 3, 3, 2};
        new CheckDuplicatesUsingTwoLoops().hasDuplicates2ForLoops(a);
    }
}

public class array {
public static void main(String[] args) {

    int[] arr = new int[] { 1, 2, 3, 4, 2, 7, 8, 8, 3 };

    System.out.println("Duplicate elements in given array: ");
    for (int i = 0; i < arr.length; i++) {
        for (int j = i + 1; j < arr.length; j++) {
            if (arr[i] == arr[j])
                System.out.println(arr[j]);
        }
    }
}

}