How can I draw on top of an image?

Question

I'm using a JApplet with three JPanel's inside of it.
Inside one of those JPanel's I would like to place an image and a button. When the button is clicked, I want to draw an oval on top of the image . Each subsequent time the button is clicked, the oval will move to a different location.
So here are my questions:
1) What should I use to draw the image? (a JLabel with an ImageIcon on it?)
2) Could I simply use g.drawOval() in paintComponent() to directly draw on top of the image/JLabel?
Any help will be greatly appriciated.

Answer 1

Here's a sample to study;-import java.awt.*;
import java.awt.event.*;
public class DrawOnImage extends java.applet.Applet{
  int xPos, yPos;
  Image img;
  public void init() {
    add(new Label("Hello World") );
    Button press = new Button("press");
    add(press);
    press.addActionListener(new ActionListener(){
      public void actionPerformed(ActionEvent e){
        xPos = (int)(Math.random()*270);
        yPos = (int)(Math.random()*170)+30;
        repaint();
    img = getImage(getDocumentBase(), "anImage.JPG");
  public void paint(Graphics g){
    g.drawImage(img,0,30,this);
    if(yPos>=30)g.fillOval(xPos, yPos, 45, 45);
}