Basic Java GUI problem

wch705 · 08-23-2010, 03:42 AM

hi guys, i am new to java and trying hard to leanring JAVA GUI.
I got an exercise to construct a picture as attached.
The basic thinking is i draw all graphics, button, label in a JPanel, and display it in a JFrame. And the result is all graphics are perfect, except the button and label, it got duplicated(when doing maxmising and minimising) and how can i put them at the bottom.
can anyone give a help?
Thank you.

jay73 · 08-23-2010, 09:27 AM

You can position buttons by using a LayoutManager and adding a second Jpanel to hold the buttons. Consult the docs for details: java.awt.BorderLayout.

suprstar · 08-23-2010, 10:25 AM

Or setLayout(null); and handle it yourself. Make your panel implement ComponentAdapter and put this in your class:

componentResized(ComponentEvent e) {
//draw all your stuff

//place button at bottom of screen centered horizontally:
myButton.setBounds(getWidth()/2-myButton.getWidth()/2,getHeigth()-myButton.getHeight());
}