Need to finish my program, but lost

[Stephen Norris]

I have written most of the code, but i have to get a JComboBox to display four shapes (circle, square, oval, and rectangle), then it has to draw that shape in the allotted space. The shapes have to be placed randomly around the window. I don't where in my program to place this part so that it will work and I don't know what to put in there so that it will be random spots. If someone could just help me with the circle part, then I could figure out the other shapes, I think. Here is the program:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Part2 extends JFrame {
private JComboBox imagesComboBox;
private JLabel label;
private String names[] = {"Circle", "Square", "Oval", "Rectangle"};
private Icon icons[] = {new ImageIcon(names[0]),
new ImageIcon(names[1]), new ImageIcon(names[2]),
new ImageIcon(names[3])  };

public Part2()
{
super("Drawing Shapes");

Container container = getContentPane();
container.setLayout(new FlowLayout() );
imagesComboBox = new JComboBox(names);
imagesComboBox.setMaximumRowCount(3);
imagesComboBox.addItemListener(
new ItemListener(){
public void itemStateChanged(ItemEvent event)
{
if(event.getStateChange() == ItemEvent.SELECTED);

}

}
);
container.add(imagesComboBox);
label = new JLabel(icons[0]);
container.add(label);
setSize(800, 800);
setVisible(true);
}
public static void main(String args[])
{
Part2 application = new Part2();
application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}

[Marilyn de Queiroz]

using the paint method (or paintComponent method)

// draw a circle at (330, 15)
graphics.drawRoundRect( 330 , 15, 80, 80, 80, 80 )
could be one way to draw a circle.

drawOval() could be another way.