Display problems with custom JComponent

I am having issues displaying two custom JComponents at the same time.

I have created a class which extends JWindow, and runs the following

code:

getContentPane().add(new CustomComponent(20,20));

getContentPane().add(new CustomComponent(120,20));

setSize(640,480);

setVisible(true);

The class CustomComponent extends JComponent and has the following

method:

protectedvoid paintComponent(Graphics g)

{

g.fillOval(x,y,50,50);

}

The problem is that only the second CustomComponent added is

displayed. When the following code is run, there is no problem:

getContentPane().add(new CustomComponent(20,20));

setSize(640,480);

setVisible(true);

getContentPane().add(new CustomComponent(120,20));

setSize(640,480);

setVisible(true);

Note that BOTH setSize and setVisible must be run inbetween each

CustomComponent addition for them all to be displayed.

Can anybody shed any light on what's happening. I don't get this

problem when adding JLabel, so I guess it must be a problem with my

CustomComponent.

Thanks for your help.

[1530 byte] By [CBaumea] at [2007-11-27 4:33:08]