Graphics help please...

Question

I am trying to use a rubberband rectangle in my app. everything works great except I can't get the rectangle to dissapear when the mouse button is released. Code is posted below - any help appreciated, thanks.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Rubber extends JLayeredPane implements MouseListener, MouseMotionListener {
      private int mouseX, mouseY; 
      private int prevX, prevY;    
      private int startX, startY;  
public Rubber() {            
       addMouseListener(this);
       addMouseMotionListener(this);
private void drawRect(Graphics g, int x1, int y1, int x2, int y2) {          
        int x, y;
        int w, h; 
        if (x1 >= x2) { 
            x = x2;
            w = x1 - x2;
        else {        
              x = x1;
              w = x2 - x1;
        if (y1 >= y2) { 
            y = y2;
            h = y1 - y2;
        else {       
              y = y1;
              h = y2 - y1;
        g.drawRect(x, y, w, h);   
private void repaintRect(int x1, int y1, int x2, int y2) {          
        int x, y; 
        int w, h; 
        if (x2 >= x1) {
            x = x1;
            w = x2 - x1;
        else {       
              x = x2;
              w = x1 - x2;
        if (y2 >= y1) {
            y = y1;
            h = y2 - y1;
        else {        
              y = y2;
              h = y1 - y2;
        repaint(x,y,w+1,h+1);       
public void paintComponent(Graphics g) {  
       g.setColor(Color.black);
       drawRect(g,startX,startY,mouseX,mouseY);
public void mousePressed(MouseEvent evt) {    
       prevX = startX = evt.getX();
       prevY = startY = evt.getY();      
public void mouseReleased(MouseEvent evt) {
       mouseX = evt.getX();
       mouseY = evt.getY();
       repaint();
public void mouseDragged(MouseEvent evt) {
       mouseX = evt.getX();  
       mouseY = evt.getY();  
       repaintRect(startX,startY,prevX,prevY);
       repaintRect(startX,startY,mouseX,mouseY);
       prevX = mouseX;
       prevY = mouseY;
public void mouseEntered(MouseEvent evt) { }
public void mouseExited(MouseEvent evt) { }  
public void mouseClicked(MouseEvent evt) { }
public void mouseMoved(MouseEvent evt) { }  

Answer 1

Try this;-
public void mouseReleased(MouseEvent evt) {
mouseX = evt.getX();
mouseY = evt.getY();
dontDraw=true;
repaint();
if(!dontDraw)g.drawRect(x, y, w, h);