How to combine the menu, frame, panel,button n their action/mouse listeners

Question

Hi there,
I have my code below and I wish to make a program in which you have to click somewhere in the window and it will generate either an ellipse or rectangle. I tried to do that by making radio buttons for ellipse and rectangle. So if the user chooses any of the above and clicks somewhere inside the window then it draws that shape on the particular location clicked at. You can also set the color of the shape by clicking onto the color menu (either red,blue or green). But i am unable to implement the mouselistener as i am confused where should i implement it. In the rectangle panel or in constructor. Basically i get confused as to where i should put a particular listener. here is my example below and i compiled it but it doesn't work as required givin me errors.
Thank You
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.GridLayout;
import java.awt.Rectangle;
import java.awt.geom.Rectangle2D;
import java.awt.geom.Ellipse2D;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseListener;
import java.awt.event.WindowAdapter;
import java.awt.event.MouseAdapter;
import java.awt.event.WindowEvent;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.border.EtchedBorder;
import javax.swing.border.TitledBorder;
import javax.swing.JFrame;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.*;
import javax.swing.JMenu;
import javax.swing.*;
import javax.swing.JMenuItem;
import java.awt.event.MouseEvent;
import java.util.Random;
public class A2
This program tests the MenuFrame.
     public static void main(String[] args)
A2Frame frame = new A2Frame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.show();
class A2Frame extends JFrame
public A2Frame()
final int DEFAULT_FRAME_WIDTH = 600;
final int DEFAULT_FRAME_HEIGHT = 600;
setSize(DEFAULT_FRAME_WIDTH, DEFAULT_FRAME_HEIGHT);
addWindowListener(new WindowCloser());
// add drawing panel to content pane
JPanel panel = new RectanglePanel();
Container contentPane = getContentPane();
contentPane.add(panel, BorderLayout.CENTER);
//contentPane.add(controlPanel, BorderLayout.SOUTH);
// construct menu
JMenuBar menuBar1 = new JMenuBar();
setJMenuBar(menuBar1);
JMenu fileMenu = new JMenu("File");
menuBar1.add(fileMenu);
JMenu colourMenu = new JMenu("Colour");
menuBar1.add(colourMenu);
JMenu editMenu = new JMenu("Edit");
menuBar1.add(editMenu);
//MenuListener listener = new MenuListener();
JMenuItem newMenuItem = new JMenuItem("New");
fileMenu.add(newMenuItem);
newMenuItem.addActionListener(listener);
JMenuItem exitMenuItem = new JMenuItem("Exit");
fileMenu.add(exitMenuItem);
exitMenuItem.addActionListener(listener);
JMenuItem randomizeMenuItem = new JMenuItem("Randomize");
editMenu.add(randomizeMenuItem);
randomizeMenuItem.addActionListener(listener);
JMenuItem redMenuItem = new JMenuItem("Red");
colourMenu.add(redMenuItem);
redMenuItem.addActionListener(listener);
JMenuItem greenMenuItem = new JMenuItem("Green");
colourMenu.add(greenMenuItem);
greenMenuItem.addActionListener(listener);
JMenuItem blueMenuItem = new JMenuItem("Blue");
colourMenu.add(blueMenuItem);
blueMenuItem.addActionListener(listener);
class MenuListener implements ActionListener
public void actionPerformed(ActionEvent event)
// find the menu that was selected
Object source = event.getSource();
if (source == exitMenuItem)
System.exit(0);
else if (source == newMenuItem)
panel.reset();
else if (source == randomizeMenuItem)
panel.randomize();
else if (source == redMenuItem)
panel.setRed();
else if (source == greenMenuItem)
     panel.setGreen();
else if (source == blueMenuItem)
          panel.setBlue();
MenuListener listener = new MenuListener();
class ChoiceListener implements ActionListener
public void actionPerformed(ActionEvent event)
if (rectangleButton.isSelected())
g2.draw(new Rectangle2D.Double(0,0,5,5));
else if (ellipseButton.isSelected())
g2.draw(new Ellipse2D.Double (0,0,5,5));
rect.repaint();
ChoiceListener listener2 = new ChoiceListener();
ControlPanel();
pack();
private RectanglePanel panel;
private class WindowCloser extends WindowAdapter
public void windowClosing(WindowEvent event)
System.exit(0);
public void ControlPanel()
JPanel shapeGroupPanel = createRadioButtons();
JPanel controlPanel = new JPanel();
controlPanel.setLayout(new GridLayout(1, 1));
controlPanel.add(shapeGroupPanel);
contentPane.add(controlPanel, BorderLayout.SOUTH);
public JPanel createRadioButtons()
JRadioButton rectangleButton = new JRadioButton("Rectangle");
rectangleButton.addActionListener(listener2);
JRadioButton ellipseButton = new JRadioButton("Ellipse");
ellipseButton.addActionListener(listener2);
rectangleButton.setSelected(true);
// add radio buttons to button group
ButtonGroup group = new ButtonGroup();
group.add(rectangleButton);
group.add(ellipseButton);
JPanel panel = new JPanel();
panel.add(rectangleButton);
panel.add(ellipseButton);
panel.setBorder (new TitledBorder(new EtchedBorder(), "Shape"));
//return panel;
class RectanglePanel extends JPanel
public RectanglePanel()
rect = new Rectangle(0, 0, RECT_WIDTH, RECT_HEIGHT);
color = Color.white ;
class ShapeListener implements MouseListener
public void mousePressed(MouseEvent event)
int x = event.getX();
int y = event.getY();
rect.setLocation(x,y);
repaint();
public void mouseClicked(MouseEvent event) {}
public void mouseEntered(MouseEvent event) {}
public void mouseExited(MouseEvent event) {}
public void mouseReleased(MouseEvent event) {}
ShapeListener listener1 = new ShapeListener();
public void paintComponent(Graphics g)
super.paintComponent(g);
Graphics2D g2 = (Graphics2D)g;
g2.setColor(color);
g2.fill(rect);
g2.draw(rect);
public void reset()
rect.setLocation(0, 0);
repaint();
public void randomize()
Random generator = new Random();
rect.setLocation(generator.nextInt(getWidth()),generator.nextInt(getHeight()));
repaint();
public void setRed()
color = Color.red;
repaint();
public void setGreen()
color = Color.green;
repaint();
public void setBlue()
color = Color.blue;
repaint();
private Rectangle rect;
private static final int RECT_WIDTH = 20;
private static final int RECT_HEIGHT = 30;
private Color color ;
private Random random;
public void setShape()
if (rectangleButton.isSelected())
g2.draw(new Rectangle2D.Double(0,0,5,5));
else if (ellipseButton.isSelected())
g2.draw(new Ellipse2D.Double (0,0,5,5));
rect.repaint();
private JRadioButton rectangleButton;
private JRadioButton ellipseButton;
private ActionListener listener;
private JMenuItem exitMenuItem;
private JMenuItem newMenuItem;
private JMenuItem redMenuItem;
private JMenuItem greenMenuItem;
private JMenuItem blueMenuItem;
private JMenuItem randomizeMenuItem;
}

Answer 1

grammer corrected.
I posted a program that lays out buttons based on mouse actions on JButton Adding Problem - reply 5. It uses MouseInputAdapter and Container.addMouseListener. It watches for mousePressed and mouseReleased events to get the limits for the button. The same could be used for ellipses.