Java如何判断数组是否相等呢？

package com.java265.other;
import java.util.Arrays;
public class Test16 {
    /**
     * java265.com 示例程序
     */
    public static void main(String[] args) {
        int[] arr = { 11, 22, 33, 44, 55, 66 };
        int[] arr1 = { 11, 22, 33, 44, 55, 66 };
        int[] arr2 = { 11, 22, 33, 44 };
        System.out.println("数组arr是否与数组arr1相等?:" + Arrays.equals(arr, arr1));
        System.out.println("数组arr是否与数组arr2相等?:" + Arrays.equals(arr, arr2));
    }
}
------运行以上代码,将输出以下信息------
数组arr是否与数组arr1相等?:true
数组arr是否与数组arr2相等?:false