import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
class Lab_06 extends JFrame 
{
    private RandomOval display;
    
    public Lab_06()	{
        super("Random Circle Generator");
        Container contentPane = getContentPane();
        contentPane.setLayout(new BorderLayout());
 
        Lab_06 display = new Lab_06(300, 300);
        display.setBackground(Color.yellow);
        contentPane.add(display, BorderLayout.CENTER);
 
        JPanel control = new JPanel(new FlowLayout());
        control.setBackground(Color.orange);
        contentPane.add(control, BorderLayout.SOUTH);
 
        JButton button = new JButton("Move");
        control.add(button);
        button.addActionListener(display);
 
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        pack();
        setResizable(false);
        setVisible(true);
    }
 
    public static void main(String[] args)
    {
        Lab_06 f = new Lab_06();
	}
	
	protected void paintComponent(Graphics g)
    {
        super.paintComponent(g);
        g.setColor(Color.RED);
        g.drawOval(0, 0, 300, 300);
}
 
class RandomOval extends JLabel implements ActionListener
{
    private int x0, y0, wOval, hOval;
 
    public RandomOval(int width, int height)
    {
        setPreferredSize(new Dimension(width, height));
        setOpaque(true);
    }
 
    protected void paintComponent(Graphics g)
    {
        super.paintComponent(g);
        g.setColor(Color.BLUE);
        g.fillOval(x0, y0, wOval, hOval);
    }
 
    public void actionPerformed(ActionEvent e)
    {
        int wLabel = getWidth();
        int hLabel = getHeight();
        x0 = (int)(wLabel * Math.random());
        y0 = (int)(hLabel * Math.random());
        wOval = (int)((wLabel - x0) * Math.random());
        hOval = (int)((hLabel - y0) * Math.random());
        repaint();
    	}
    }
}