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Thread: Method to print n x n box

  1. #1
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    Default Method to print n x n box

    Stuck on this, need to create a method that prints n x n box:

    ****
    *  *
    *  *
    ****

    The spaces between the middle two stars is two.

    Here's my code:
        public static void starBox(int n)
        {
            for (int row = 1; row <= n; row++)
            {
                for (int col = 1; col <= row; col++)
                {
                    if (row == 1 || row == 4)
                    {
                        System.out.print("* ");
                    }
                    else
                    {
                        System.out.print("* ");
                }
                System.out.println();
            }
        }
    }
    }

    But I get this:
    * 
    * 
    * 
    * 
    * 
    * 
    * 
    * 
    * 
    *

    Can anyone give me hints or tips as to what I'm doing wrong? Thanks!
    Last edited by HeroFlame; November 17th, 2011 at 12:02 PM.


  2. #2
    Crazy Cat Lady KevinWorkman's Avatar
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    Default Re: Method to print n x n box

    What is the value of row going to be the first time through your loop? So what will that do to the inner loop? What about the second time through the loop?
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    Default Re: Method to print n x n box

    Quote Originally Posted by KevinWorkman View Post
    What is the value of row going to be the first time through your loop? So what will that do to the inner loop? What about the second time through the loop?
    4 throughout.

  4. #4
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    Default Re: Method to print n x n box

    Quote Originally Posted by HeroFlame View Post
    4 throughout.
    Really? Did you test that assumption? I suggest you run this program through a debugger, or at least add some print statements to figure out what's going on. Recommended reading: http://www.javaprogrammingforums.com...t-println.html
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