Java SE (Java Platform, Standard Edition)

hi to all my friends ...

in this code ... the Oval not draw in panel plz any one help me ...thanks

package Paint;

import java.awt.BorderLayout;
import java.awt.Color;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.SwingUtilities;

public class Paint extends JFrame {

    ToolbarPanel toolbarPanel;
    private DrawingPanel DrawPanel;
    private JMenuBar bar;
    private JMenu fileMenu;
    private JMenuItem openItem,  saveItem;

    public Paint() {

        DrawPanel = new DrawingPanel();
        toolbarPanel = new ToolbarPanel(DrawPanel);

        fileMenu = new JMenu("file");
        fileMenu.addSeparator();

        openItem = new JMenuItem("open");
        fileMenu.add(openItem);

        saveItem = new JMenu("save");
        fileMenu.add(saveItem);
        bar = new JMenuBar();
        setJMenuBar(bar);
        bar.add(fileMenu);

        add(toolbarPanel, BorderLayout.NORTH);
        DrawPanel.setBackground(Color.WHITE);
        add(DrawPanel, BorderLayout.CENTER);

    }

    private static void creatAndShowGUI() {
        JFrame frame = new Paint();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                creatAndShowGUI();
            }
        });
    }
}

package Paint;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.JToolBar;

class ToolbarPanel extends JPanel {

    private JToolBar toolbar;
    private JButton Lbutton,  Obutton,  Sbutton,  Rbutton,  Pbutton,  Tbutton;
    private DrawingPanel panel;

    public ToolbarPanel(DrawingPanel drawingPanel) {

        panel = drawingPanel;
        toolbar = new JToolBar();
        Lbutton = new JButton("Line");
        Lbutton.addActionListener(new ButtonListener());
        Obutton = new JButton("Oval");
        Sbutton = new JButton("Square");
        Rbutton = new JButton("Rectangle");
        Pbutton = new JButton("Polygan");
        Tbutton = new JButton("Triangle");

        toolbar.add(Lbutton);
        toolbar.add(Obutton);
        toolbar.add(Sbutton);
        toolbar.add(Rbutton);
        toolbar.add(Pbutton);
        toolbar.add(Tbutton);
        toolbar.addSeparator();
        add(toolbar);
    }

    private class ButtonListener implements ActionListener {

        public void actionPerformed(ActionEvent e) {
            if (e.getSource() == Lbutton) {
                panel.draw(DrawingPanel.LINE);
            }
            *if (e.getSource() == Obutton) {*
                *panel.draw(DrawingPanel.OVAL);*  
          }
        }
    }
}

package Paint;

import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.Serializable;
import java.util.Vector;
import javax.swing.JPanel;

public class DrawingPanel extends JPanel {

    private int x1,  y1,  x2,  y2,  width_I,  width_F,  Height_I,  Height_F,  Oval_w,  Oval_h,  Oval_x,  Oval_y;
    public final static int LINE = 1,  OVAL = 2;
    private int shape;
    private Vector vLine;

    public DrawingPanel() {

        vLine = new Vector();

        addMouseListener(
                new MouseAdapter() {

                    @Override
                    public void mousePressed(MouseEvent e) {
                        if (shape == LINE) {
                            x1 = e.getX();

                            y1 = e.getY();
                        }
                        *if (shape == OVAL) {*
                            *width_I = e.getX();*
                            *Height_I = e.getY();*
                            *Oval_x = e.getX();*
                            *Oval_y = e.getY();*
                        *}*

                    }

                    @Override
                    public void mouseReleased(MouseEvent e) {
                        x2 = e.getX();
                        y2 = e.getY();

                        if (shape == LINE) {
                            vLine.add(new Coordinate(x1, y1, x2, y2));
                        }
                        repaint();
                        *if (shape == OVAL) {*
                            *width_F = e.getX();*
                            *Height_F = e.getY();*
                            *if (width_F < width_I) {*
                                *Oval_x = e.getX();*
                            *}*
                            *if (Height_F < Height_I) {*
                                *Oval_y = e.getY();*
                            *}*
                            *repaint();*
                        }

                    }
                });

        Dimension dimension = new Dimension(500, 300);
        setMinimumSize(dimension);
        setPreferredSize(dimension);
    }

    @Override
    public void paintComponent(Graphics g) {
        super.paintComponent(g);

        for (int i = 0; i < vLine.size(); ++i) {
            Coordinate coordinate = (DrawingPanel.Coordinate) vLine.elementAt(i);
            g.drawLine(coordinate.x1, coordinate.y1, coordinate.x2, coordinate.y2);
        }

        *Oval_w = Math.abs(width_F - width_I);*
        *Oval_h = Math.abs(Height_F - Height_I);*
        *g.drawOval(Oval_x, Oval_y, Oval_w, Oval_h);*

    }

    public void draw(int shapeTodraw) {
        shape = shapeTodraw;
        repaint();
    }

    private class Coordinate implements Serializable {

        private int x1,  y1,  x2,  y2;

        public Coordinate(int inx1, int iny1, int inx2, int iny2) {
            x1 = inx1;
            y1 = iny1;
            x2 = inx2;
            y2 = iny2;

        }
    }
}
   
    
            

i wait answer from you .....thanks