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Thread: HOW to do it?

  1. #1
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    Default HOW to do it?

    print pattern like the fllowing using loops structure:

    .........
    ........
    .......
    ......
    .....
    ....
    ...
    ..
    .

    --- Update ---

    class Exercise4{
    public static void main(String args[]){
    int a =9;

    while (a>0){
    System.out.println(".");
    a--;
    }

    }
    }

  2. #2
    Crazy Cat Lady KevinWorkman's Avatar
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    Default Re: HOW to do it?

    What does that code do?

    Can you write out, in words, what the pattern is?
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  3. #3
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    Default Re: HOW to do it?

    You could try a string array containing every stage of the dot pattern and having a for loop cycle through the elements.

  4. #4
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    Default Re: HOW to do it?

    Hint: what you want to do is a very simple version of a histogram: https://en.wikipedia.org/wiki/Histogram

    Hint: the number of dots and the number of lines are a function of a related loop iteration limit.

    Hint: start with a method that takes two parameters, and prints a single line of n characters.

    (It strikes me that this is an excellent intro Coding Golf exercise. If I leave out all readability I get something like 190 chars. But I'm actually making a method call, which eats up lots of space. 146 with no method call, but still using readable looping. This is like 40 VM instructions.)
    Last edited by jdv; August 5th, 2014 at 10:56 AM.

  5. #5
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    Default Re: HOW to do it?

    Quote Originally Posted by BenjaminJ View Post
    You could try a string array containing every stage of the dot pattern and having a for loop cycle through the elements.
    This is not the solution to this problem.

    This is a pretty standard first-year homework assignment, so it's better to try to steer the OP in the right direction by asking him questions rather than offering full solutions.
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