java - Java 中的二维数组 - 不打印

Question

String[][] arrays = {
        {"Hello","World","Matt"},
        {"Computer","Good","Keyboard","Mouse"}
    };
    for(int r = 0; r < arrays.length; r++)
    {
        for(int c = 0; c < arrays[0].length; c++)
        {
            System.out.print(arrays[r][c]);
        }
    }

我从中得到的结果是“HelloWorldMattComputerGoodKeyboard”，其中鼠标未包含在此数组中。

Answer 1

数组的行长度不同。将循环更改为:

for(int r = 0; r < arrays.length; r++)
{
    for(int c = 0; c < arrays[r].length; c++)
    {
        System.out.print(arrays[r][c]);
    }
}