比方说，我得到这个图，打印出：

  00000
00000
00000
 

我要如何更改元素[0] [0]成一个X？

在换句话说，如何使它看起来像这样使用屏幕输入：

  X0000
00000
00000
 

解决方案

这条命令：

 进口的java.util。*;
进口的java.lang。*;

一流的主
{
        公共静态无效的主要（字串[] args）抛出java.lang.Exception的
        {
                串[] []数组= {{0，0，0}，{0，0，0}，{0，0，0}} ;

                的System.out.println（前：）;
                printArray（阵列）;


                阵列[0] [0] =×;
                的System.out.println（后）;
                printArray（阵列）;

        }

        私有静态无效printArray（字符串[] []数组）{
                的for（int i = 0; I＆LT; array.length;我++）{
                        对于（INT J = 0; J＆LT;数组[0] .length; J ++）{
                                System.out.print（数组[I] [J]）;
                        }
                        的System.out.println（）;
                }
        }
}
 

或者去这里： http://ideone.com/2DQC1

Let's say I got this map that prints out:

00000
00000
00000

How do I change the element in [0][0] into an X?

In other words, how to make it look like this using Screen input:

X0000
00000
00000

Run this:

import java.util.*;
import java.lang.*;

class Main
{
        public static void main (String[] args) throws java.lang.Exception
        {
                String[][] array = {{"0","0","0"},{"0","0","0"},{"0","0","0"}};

                System.out.println("Before: ");
                printArray(array);


                array[0][0] = "x";
                System.out.println("After: ");
                printArray(array);

        }

        private static void printArray(String[][] array){
                for(int i=0; i<array.length; i++){
                        for(int j=0; j<array[0].length; j++){
                                System.out.print(array[i][j]);
                        }
                        System.out.println("");         
                }
        }
}

Or go here: http://ideone.com/2DQC1