2D Arrays In Java - Not Printing

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]);
        }
    }

The result that I am getting from this is "HelloWorldMattComputerGoodKeyboard" where Mouse is not being included in this array.

Answer 1

The rows of your array don't have the same length. Change your loop to :

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

Answer 2

You have problem in your inner loop where you are iterating 0 indexed array length every time, your 0th indexed arrays length is 3 that's why your mouse is not printing because your 2nd array's length is 4 ,try replacing 0 with r inside nested loop.

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