Java Arrays equals方法针对long

package com.codingdict;

import java.util.Arrays;

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

      // initializing three long arrays
      long[] arr1 = new long[] { 150, 123, 12, 45, 54 };
      long[] arr2 = new long[] { 150, 123, 12, 45, 54, 67, 78 };
      long[] arr3 = new long[] { 150, 123, 12, 45, 54, 67, 78 };

      // comparing arr1 and arr2
      boolean retval = Arrays.equals(arr1, arr2);
      System.out.println("arr1 and arr2 equal: " + retval);

      // comparing arr2 and arr3
      boolean retval2 = Arrays.equals(arr2, arr3);
      System.out.println("arr2 and arr3 equal: " + retval2);
   }
}