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Thread: Simple Grahpic porgram wont work.

  1. #1
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    Default Simple Grahpic porgram wont work.

    I am a new programmer and I'm reading the "Sams Teach Yourself Java in 24 Hours" and I'm doing a chapter on the color class. The program displays two rectangles on blue and on a random color I made and also a string which is red. But when I run it the only thing that comes up is the frame. I'm using NetBeans in linux. Here is the code for a class I named Peach and for a class named eric(I know there dumb names but they are just random names I thought of.) Can someone tell me why it doesn't work. It works in the book but not for me.
    Peach class
    import java.awt.*;
    import javax.swing.*;
     
    public class Peach extends JPanel{
     
        public void paintComponet(Graphics g){
            super.paintComponent(g);
            this.setBackground(Color.WHITE);
     
     
            g.setColor(Color.BLUE);
            g.fillRect(25, 25, 100, 30);
     
            g.setColor(new Color(190, 81, 215));
            g.fillRect(25, 65, 100, 30);
     
            g.setColor(Color.RED);
            g.drawString("this is text", 25, 120);
     
        }
     
    }

    eric class
    import javax.swing.*;
     
    public class eric{
        public static void main(String[] args){
     
            JFrame f = new JFrame("Title");
            f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            f.setSize(400,250);
            Peach p = new Peach();
            f.add(p);
            f.setVisible(true);
        }
    }


  2. #2
    Super Moderator copeg's Avatar
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    Default Re: Simple Grahpic porgram wont work.

    Spelling....
    public void paintComponent(Graphics g){//not paintComponet

    Using the @Override annotation lets the compiler know you are overriding a function and would not have compiled your original code
    @Override public void paintComponent(Graphics g){
    ...
    }
    @Override public void paintComponet(Graphics g){//compile time error
    ...
    }

  3. #3
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    Default Re: Simple Grahpic porgram wont work.

    Thanks for the help. It works now. I have to learn how to spell.

  4. #4
    Super Moderator helloworld922's Avatar
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    Default Re: Simple Grahpic porgram wont work.

    You also need to pay attention to casing (upper or lower case). Java's quite picky about casing, too.

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