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Thread: JPanel drawing question

  1. #1
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    Default JPanel drawing question

    so heres what i have

    public class MyPanel extends JPanel { 
     
       public MyPanel(){ 
          setSize(100, 250); 
          setLocation(0, 0); 
          setOpaque(true); 
          this.setForeground(new Color(100,100,100)); 
          //setVisible(true); 
       } 
       public void paintComponents(Graphics g) 
       { 
          super.paintComponent(g); 
          g.fillRect(3, 5,100, 100); 
     
       } 
       public static void main(String [] args) 
       { 
          JFrame f = new JFrame("Frame"); 
                    f.setSize(500, 500); 
          f.setVisible(true); 
          f.getContentPane().add(new MyPanel()); 
          f.show(); 
       } 
     
     
    }


    when i run it i get a blank JFrame screen.........is there something i missed or did wrong?


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: JPanel drawing question

    Are you sure your paint method is being called? Add a println to see.

  3. #3
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    Default Re: JPanel drawing question

    Yeah, a few notes:
    • paintComponents() isn't completely right, as It's actually paintComponent()
    • You're using a lot of unnecessary code
    • f.show() is depreciated, stick to setVisible()
    Please use [highlight=Java]//code goes here...[/highlight] tags when posting your code

  4. #4
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    Default Re: JPanel drawing question

    it works now......thanks alot

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