Simple Java Program to Draw a Rectangle on a Pane

[Allan Horwitz]

I am trying to draw a rectangle onto a pane. My program will compile
and run but the rectangle does not seem to get drawn. When the program
is run the program frame opens up, but I cannot see a rectangle on the
pane.

Any help would be appreciated.

Sincerely,
Allan

====start class code=====
import java.awt.*;
import javax.swing.*;

class MyDrawPanel extends JPanel {

public static void main(String[] args) {

MyDrawPanel gui = new MyDrawPanel();
gui.go();
}//close main
public void go() {

JFrame frame = new JFrame();

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOS E);
frame.setSize(300,300);
frame.setVisible(true);
}//close go
public void paintComponet(Graphics g) {

g.setColor(Color.orange);
g.fillRect(20,50,100,100);

}//close paintComponent

}//close class

======end class code======

[Rob Ratcliff]

Allan,

You need to add the panel to the content pane of your Frame:

frame.getContentPane().add(this,java.awt.BorderLay out.CENTER);

Also, you have a typo with paintComponent (not paintComponet).

Good Luck,

Rob
Allan Horwitz wrote:

I am trying to draw a rectangle onto a pane. My program will compile
and run but the rectangle does not seem to get drawn. When the program
is run the program frame opens up, but I cannot see a rectangle on the
pane.

Any help would be appreciated.

Sincerely,
Allan

====start class code=====
import java.awt.*;
import javax.swing.*;

class MyDrawPanel extends JPanel {

public static void main(String[] args) {

MyDrawPanel gui = new MyDrawPanel();
gui.go();
}//close main
public void go() {

JFrame frame = new JFrame();

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOS E);
frame.setSize(300,300);
frame.setVisible(true);
}//close go
public void paintComponet(Graphics g) {

g.setColor(Color.orange);
g.fillRect(20,50,100,100);

}//close paintComponent

}//close class

======end class code======