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Thread: paintComponent is not reading my private variables

  1. #1
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    Default paintComponent is not reading my private variables

    Just to simplify, I'll leave out the details to my code:

    public class Theclass{
     
    private short a,b;
     
    public Theclass(short a,short b){
    }
     
    public void paintComponent(Graphics g){
    super.paintComponent(g)
    System.out.println("a: "+a+" and b: "+b);//outputs: "a: 0 and b: 0"
    }
     
    public static void main(String[]args){
    a=10;
    b=5;
    Theclass tc=new TheClass(a,b);
    }
    }

    So why isn't my paintComponent reading these 2 variables? It draws other things. I'm guessing it's being called before main is called. How do i get it to run when i want it to, aka after the required variables and methods have been run so it knows what to do?


  2. #2
    Member Darryl.Burke's Avatar
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    Default Re: paintComponent is not reading my private variables

    You left out so many details that your code is uncompilable.

    What's the point of a constructor that takes two arguments and doesn't do anything with them? Recommended reading: Providing Constructors for Your Classes (The Java™ Tutorials > Learning the Java Language > Classes and Objects)

    db

  3. #3
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    Default Re: paintComponent is not reading my private variables

    sorry i didn't think the code would be enough, but I figured it out.

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