Java Arrays equals方法针对Object

package com.codingdict;

import java.util.Arrays;

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

      // initiliazing three object arrays
      Object[] arr1 = new Object[] { 1, 123 };
      Object[] arr2 = new Object[] { 1, 123, 22, 4 };
      Object[] arr3 = new Object[] { 1, 123 };

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

      // comparing arr1 and arr3
      boolean retval2 = Arrays.equals(arr1, arr3);
      System.out.println("arr1 and arr3 equal: " + retval2);
   }
}