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Thread: Need Hint for Triangle???

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    Member Ganeprog's Avatar
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    Question Need Hint for Triangle???

    Hi,

    I need to build the triangle like below.Please give hint to solve this using loops.

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

    thanks in advance.
    Last edited by Ganeprog; January 16th, 2014 at 08:36 AM. Reason: triangle shape changed


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    Senior Member PhHein's Avatar
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    Default Re: Need Hint for Triangle???

    Hi, read this Announcements - What's Wrong With My Code? to find out how to post formatted code and to preserve formatting.

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    Default Re: Need Hint for Triangle???

    Then show what you've tried. Ask specific questions, post sample runs, errors, etc. Then we can give hints.

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    Member Ganeprog's Avatar
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    Default Re: Need Hint for Triangle???

    I tried but i dont know how to start this. give some hint or idea to solve this above triangle or Please provide some initiation point to start

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    Default Re: Need Hint for Triangle???

    Quote Originally Posted by Ganeprog View Post
    I tried but i dont know how to start this. give some hint or idea to solve this above triangle or Please provide some initiation point to start
    First, I imagine you want (or you have been asked to do) to have a variable that contains the "height" of the triangle, e.g.:

    int height = 5;

    And given only this value, generate dynamically the triangle, so that changing this value you get another correct triangle.

    You need a main loop (for) cycle for each row, I think this is quite trivial. For each row you need to do another loop, some prints but also few calculations.
    If you want to have a fixed number of spaces at the beginning of each line, it's ok, it's a simple fixed println. Then you need a number of spaces that depends on the current row. On the first row, how many spaces do you need before the single "*" in order to have this centered?
    And you need a space between two consecutive "*".

    So please, start from these considerations.
    Andrea, www.andbin.net SCJP 5 (91%) SCWCD 5 (94%)

    Useful links for Java beginners My new project Java Examples on Google Code

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    Default Re: Need Hint for Triangle???

    public class MyTriangle{
        public static void main(String args[]){
            MyTrinagle mt = new MyTriangle();
            // up to you ....
        }
    }

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