打印在Java中如表一个二维数组 [英] Printing a 2d array in Java like a table

问题描述

我想打印inputed 2维数组如表
即如果由于某种原因，他们把所有秒...

  1 1 1 11 1 1 11 1 1 11 1 1 1
 

就像上​​面如此但在日食的Java控制台，没有华丽的按钮和图形用户界面的，但在控制台中，这里是我......

 进口java.util.Scanner中;
    公共类客户{
        公共静态无效的主要（字串[] args）{
            扫描仪输入=新的扫描仪（System.in）;            INT [] []表=新INT [4] [4];
            的for（int i = 0; I＆LT; table.length;我++）{
                对于（INT J = 0; J＆LT; table.length; J ++）{
                    的System.out.println（输入一个数字。）;
                    INT X = input.nextInt（）;
                    表[I] [J] = X;
                    System.out.print（表[I] [J] +）;
                }
                    的System.out.println（）;
        }
        的System.out.println（表）;
    }
}
 

这是我所得到的，当我输入的一切和控制台终止：

 输入一个数字。11输入一个数字。11输入一个数字。11输入一个数字。11[我@ 3fa1732d
 

解决方案

您需要从输入数字分别打印出数组。所以，你可以做这样的事情：

 公共类PrintArray {
    公共静态无效的主要（字串[] args）{
        扫描仪输入=新的扫描仪（System.in）;        INT [] []表=新INT [4] [4];
        的for（int i = 0; I＆LT; table.length;我++）{
            对于（INT J = 0; J＆LT; table.length; J ++）{
                //的System.out.println（输入一个数字。）;
                INT X = input.nextInt（）;
                表[I] [J] = X;
            }
            //System.out.println（）;
        }
        //的System.out.println（表）;        的for（int i = 0; I＆LT; table.length;我++）{
            对于（INT J = 0; J＆LT;表[I]。长度; J ++）{
                System.out.print（表[I] [J] +）;
            }
            的System.out.println（）;
        }
    }
}
 

I'd like to print an inputed 2-dimensional array like a table i.e if for some reason they put in all 1s...

1 1 1 1 

1 1 1 1 

1 1 1 1

1 1 1 1 

Just like so above but in the console on Java eclipse, no fancy buttons and GUI's but in the console, here is what I have....

    import java.util.Scanner;
    public class Client {
        public static void main(String[] args){
            Scanner input = new Scanner(System.in);

            int[][] table = new int[4][4];
            for (int i=0; i < table.length; i++) {
                for (int j=0; j < table.length; j++) {
                    System.out.println("Enter a number.");
                    int x = input.nextInt();
                    table[i][j] = x;
                    System.out.print(table[i][j] + " "); 
                } 
                    System.out.println();
        }
        System.out.println(table);
    }
}

And this is what I get when I input everything and the console terminates:

Enter a number.

1

1 Enter a number.

1

1 Enter a number.

1

1 Enter a number.

1

1 

[[I@3fa1732d

解决方案

You need to print out the array separately from entering the number. So you can do something like this:

public class PrintArray {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);

        int[][] table = new int[4][4];
        for (int i = 0; i < table.length; i++) {
            for (int j = 0; j < table.length; j++) {
                // System.out.println("Enter a number.");
                int x = input.nextInt();
                table[i][j] = x;
            }
            //System.out.println();
        }
        // System.out.println(table);

        for (int i = 0; i < table.length; i++) {
            for (int j = 0; j < table[i].length; j++) {
                System.out.print(table[i][j] + " ");
            }
            System.out.println();
        }
    }
}

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