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Thread: 2 dimensional array storing help!

  1. #1
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    Default 2 dimensional array storing help!

    My goal is to take the string and place each individual character in a two dimensional array. Here is what I have so far...

    The string totalMaze is:
    oooooooo#S#ooooooo#oo##oooo#ooo#oo#oo$ooo######ooo oooooo


    char [][] array = new char [numberOfRows][numberOfColumns];

    for (int row = 0; row < numberOfRows; row++)
    {

    for (int col = 0; col < numberOfColumns; col++)
    {

    array[row][col] = totalMaze.charAt(?????????????);
    }

    }



    I tried another for loop within the col loop, like for (int i = 0; i < totalmaze.length();i++)


    the result is:

    oooooooo
    oooooooo
    oooooooo
    oooooooo
    oooooooo
    oooooooo
    oooooooo

    and I need it to be:

    oooooooo
    #S#ooooo
    oo#oo##o
    ooo#ooo#
    oo#oo$oo
    o######o
    oooooooo

    I can't figure out what to put in the charAt method to make it work! Please help, very frustrated thanks. Will post more info if needed.



    ALSO...The goal of the project is to develop this maze with S as the start, o's as "roads" and #'s as "walls". $ is the end.
    We need to use a recursive method to find the treasure.

    I need help developing the algorithm for finding the treasure. I need to check the neighbors, but not diagonals and mark with an X if it is not the treasure so that I don't check it again. Just hard to wrap my head around
    Last edited by jts0541; January 31st, 2012 at 02:14 PM.


  2. #2
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    Default Re: 2 dimensional array storing help!

    Think about how a two dimensional array works, if you make a row then make columns within that specific row, what happens?

    You don't need a third loop, and you're loop is in the right spot. Think about you're string. If you're dealing with a four character string ( let's say the word "Java") and you separate it into a two by two dimensional array. Row 1 Column 1 is the letter J, while Row 2 Column 1 is the letter A. Look at indexes the characters you're printing are. Tip : You're program needs to know how to adjust the index it needs to print for the next row.

    Alright so I'm awful at recursion, but I would try and separate the recursive function into two smaller recursive functions. Think about the relationship between the neighbors. Hint: The left neighbor is -1 column away and the right neighbor is +1 column away.

  3. #3
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    Default Re: 2 dimensional array storing help!

    Yah i think I understand how a 2 dimensional array. But from your java array wouldn't that look like
    J
    a
    v
    a

    Take the string javaprogramming for example I need it to be like

    javaprog
    ramming

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