Find Duplicates in an array

package com.usr.arrays;

public class CheckDuplictesInArray {

       public static void main(String[] args) {

              String[] strArr = new String[] { "a", "b", "c", "s", "d", "e", "a",

                           "b", "s" };

              detectDuplicates(strArr);

       }

       public static void detectDuplicates(String[] arr) {

              for (int i = 0; i < arr.length; i++) {

                     for (int j = i + 1; j < arr.length; j++) {

                           if (arr[j] == arr[i]) {

                                  System.out

                                                .println("Duplicate found! Original was at location "

                                                              + (i + 1) + " and match is at " + (j + 1));

                                  System.out.println("Duplicated value is:" + arr[j]);

                           }

                     }

              }

       }

}

OUTPUT

Duplicate found! Original was at location 1 and match is at 7

Duplicated value is:a

Duplicate found! Original was at location 2 and match is at 8

Duplicated value is:b

Duplicate found! Original was at location 4 and match is at 9

Duplicated value is:s