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Sum of rows and columns in a 2d array

how do i find the sum of rows and columns in a 2d array?


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  • RichardKRichardK Member Posts: 14
    [b][red]This message was edited by RichardK at 2006-2-14 12:27:57[/red][/b][hr]
    [b][red]This message was edited by RichardK at 2006-2-14 12:27:19[/red][/b][hr]
    [b][red]This message was edited by RichardK at 2006-2-14 12:26:38[/red][/b][hr]
    : how do i find the sum of rows and columns in a 2d array?
    :
    :
    :
    Hope this helps.

    In Java there is no such concept of 2 dimensional arrays.
    There are only arrays of arrays. Therefore you can't do the simple calculation rows * columns = answer.

    The difference between a 2D array and an array of an array is the following. In an array of an array individual rows size can be altered. i.e. a Jagged Array.
    so it is a case of get see how long each row is and add it together.


    public int getCount(String[][] Array)
    {
    int result = 0; //temp location to store current count
    for (int i = 0;i <= Array.length -1;i++){//loop around first array
    //get the length of all the arrays in the first array
    //and add them onto the temp variable
    result += Array[i].length;
    }
    return result;
    }






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