二维数组的定义

静态初始化

动态初始化

package com.itheima;

public class shuzu04 {
    public static void main(String[] args) {
        int[][] arr={{7,9,10},{213,35,77}};
        System.out.println(arr[0]);
        System.out.println(arr[0]);
        System.out.println(arr[0]);

        System.out.println("-------------------");
        System.out.println(arr[0][0]);
        System.out.println(arr[0][1]);
        System.out.println(arr[0][2]);
        System.out.println(arr[1][0]);
        System.out.println(arr[1][1]);
        System.out.println(arr[1][2]);
    }
}

执行结果

[I@1b6d3586
[I@1b6d3586
[I@1b6d3586
-------------------
7
9
10
213
35
77

Process finished with exit code 0