Java二维数组

package com.test;

public class Test {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        //两种二位数组定义方式
//        int a[][] = new int[2][3];
//        int[][] b = new int[2][3];
        //两种初始化方式
        /*//1 定义的同时初始化
        int[][] arry = {{0, 0, 0, 0, 0, 0},
                        {0, 0, 1, 0, 0, 0},
                        {0, 2, 0, 3, 0, 0},
                        {0, 0, 0, 0, 0, 0}};*/

        //该初始化方式会报错
//        int[][] array = new int[4][6];
//        array[4][6] = {{0, 0, 0, 0, 0, 0},{0, 0, 1, 0, 0, 0}, {0, 2, 0, 3, 0, 0},{0, 0, 0, 0, 0, 0}};
        //该初始化方式会报错
//        int[] arra = new int[2];
//        arra = {1, 2};
        //应改为
//        int[] arra2 = {1, 2};

        //2 首先开辟数组空间，再逐个初始化
        int[][] array = new int[4][6];

        array[1][2] = 1;
        array[2][1] = 2;
        array[2][3] = 3;

        //把图形输出
        //先访问行
        for (int i = 0; i < array.length; i++) {
            //后打印列
            for (int j = 0; j < 6; j++) {
                System.out.print(array[i][j]+" ");
            }
            //换行
            System.out.println();
        }
    }
}