How to compare two arrays in Java

Problem Description

How to compare two arrays?

Solution

Following example uses equals method to check whether two arrays are or not.

import java.util.Arrays;

public class Main {
   public static void main(String[] args) throws Exception {
      int[] ary = {1,2,3,4,5,6};
      int[] ary1 = {1,2,3,4,5,6};
      int[] ary2 = {1,2,3,4};
      
      System.out.println("Is array 1 equal to array 2?? "
         +Arrays.equals(ary, ary1));
      System.out.println("Is array 1 equal to array 3?? "
         +Arrays.equals(ary, ary2));
   }
}

Result

The above code sample will produce the following result.

Is array 1 equal to array 2?? true
Is array 1 equal to array 3?? false