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 Post subject: Java Noob
PostPosted: Thu Dec 22, 2011 9:39 am 
Shake'n'Baker
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Joined: Mon Jun 14, 2010 3:51 pm
Posts: 62
Code:
import java.awt.Canvas;
import java.awt.Graphics;
public class Project{   
    public static void main(String[] args) {
        javax.swing.JFrame Win = new javax.swing.JFrame("J-App");
        Win.setDefaultCloseOperation(Win.EXIT_ON_CLOSE);
        Win.setSize(400, 300);
        Win.setVisible(true);
       
        Canvas Cnvs = new Canvas();
        Win.add(Cnvs);
        Graphics g = Cnvs.getGraphics();
        g.drawLine(100, 100, 300, 200);
    }
}

If I run it normally I dont see the line.
But I run it in debug mode, I see the line.
What am I doing wrong?


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 Post subject: Re: Java Noob
PostPosted: Sun Jun 30, 2013 8:01 pm 
Level 1 Cleric

Joined: Sun Jun 30, 2013 7:54 pm
Posts: 11
Well I'm new myself, just looking through these old post in the first page : /

public static void main(String[] args) {
javax.swing.JFrame Win = new javax.swing.JFrame("J-App");
Win.setDefaultCloseOperation(Win.EXIT_ON_CLOSE);
Win.setSize(400, 300);
Win.setVisible(true);

Canvas Cnvs = new Canvas();
Win.add(Cnvs);
Graphics g = Cnvs.getGraphics();

while(true){
g.drawLine(100, 100, 300, 200);
}
}

I noticed that when run in either mode it does draw the line but just for a moment then it disappears, adding the infinite loop I got it to show the line, granted it's redrawing it non-stop haha.

Hope it helps.


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