Not drawing the Button?

[Jing Liang]

My codes able to draw the ellipse but not the button("Start"). I added the button to the JComponent. Could someone tell me what I did wrong and help me out? Thanks in advance

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.geom.*;
 
public class Tanks extends JApplet
{
public static final int WIDTH  = 400;
public static final int HEIGHT = 400;
 
public void init()
{
this.setSize(WIDTH, HEIGHT);
this.add(new PaintSurface(), BorderLayout.CENTER);
}
 
}
 
class AnimationThread extends Thread
{
JApplet c;
 
public AnimationThread(JApplet c)
{
this.c = c;
}
 
public void run()
{
 
}
 
}
 
class PaintSurface extends JComponent
{
private JButton button1;
 
public PaintSurface()
{
[B]JPanel panel = new JPanel();
button1 = new JButton("Start");
panel.add(button1);
this.add(panel);[/B]
}
 
public void paint(Graphics g)
{
Graphics2D g2 = (Graphics2D)g;
 
g2.setRenderingHint(
RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
 
Shape s = new Ellipse2D.Float(20,50,250,150);
g2.setPaint(Color.BLACK);
g2.draw(s);
}
}

[Eric Daly]

I'm still a noob when it comes to swing, but I noticed you're trying to add your button to the PaintSurface. I would think you should make the button on top of the pane but not inside PaintSurface. So you could add the button during init(). Or else maybe you're just drawing your entire ellipse over the button, so you never see it. And you don't have any actionlisteners yet, so you can't test to see if the button works anyhow.

[Jing Liang]

It works. Thanks Eric

[Keith Lynn]

If you add super.paint(g) as the first line of the paint method, does it work?

[Eric Daly]

Keith, I tried your suggestion, but the button still did not show up. I wonder what you could do to actually get the button to appear...

[Jing Liang]

The button shows up when I add the button at the init() BorderLayout.NORTH