Thread: mouse Released no work!!

hi all
i'm trying to a function that listen to the mouse
basically i want to start drawing square till the user released the mouse
and than the square will disappear
this is my function please help

  public void StartDelete()
    {
                    _pointX = new int[4];
                    _pointY = new int[4];
 
                  addMouseListener(new MouseAdapter(){
            @Override
            public void mousePressed(MouseEvent e){
                if(_clearFlag)
                {
              _pointX[3] = e.getX();
               _pointY[3]= e.getY();
                }
            }
        });
        addMouseMotionListener(new MouseAdapter(){
 
            public void mouseDragged(MouseEvent e){
                if(_clearFlag)
                {
                       _pointX[0]=(e.getX()-_pointX[3])+_pointX[3];
                       _pointY[0]=_pointY[3];
                       _pointX[1]= e.getX();
                       _pointY[1] = e.getY();
                       _pointX[2]=_pointX[3];
                       _pointY[2]=e.getY();
 
                       repaint();
 
            }
            }
        });
              addMouseMotionListener(new MouseAdapter(){
 
            public void mouseReleased(MouseEvent e){
                if(_clearFlag)
                {
                       _pointX=null;
                       _pointY=null;
 
                       repaint();
 
            }
            }
        });
    }

and my repaint

public void paintComponent(Graphics g){
 
        super.paintComponent(g);
        //////////////////////////////--------------------Display obstacle points----------------//////////////////////////////////////////////////
        g.setColor(Color.BLACK);
        LinkedList[] positive =  new LinkedList[_obstacleDataPoints.getPositiveArraySize()] ;
        LinkedList[] negative = new LinkedList[_obstacleDataPoints.getNegativeArraySize()];
        negative = _obstacleDataPoints.getNegativeNumbers();
        positive = _obstacleDataPoints.getPositiveNumbers();
 
        for(int i=0;i<positive.length-1;i++)
        {
              PointX x;
           for(int j=0;j<positive[i].size();j++)
           {
                x= (PointX)positive[i].get(j);
             //  IfPointOutOfFrame(x.getX(),i);
 
                g.fillOval(ConvertXRobotDataToDraw(x.getX()),ConvertYRobotDataToDraw(i), 4, 4);
 
 
           }
 
        }
                for(int i=1;i<negative.length-1;i++)
        {
              PointX x;
           for(int j=0;j<negative[i].size();j++)
           {
                x= (PointX)negative[i].get(j);
             //  IfPointOutOfFrame(x.getX(),i);
 
                g.fillOval(ConvertXRobotDataToDraw(x.getX()),ConvertYRobotDataToDraw(-i), 4, 4);
 
 
           }
 
        }
[B]if(_pointX!=null&&_pointY!=null)
    g.drawPolygon(_pointX, _pointY, 4);[/B]
 
 }

in run time this mouseReleased dosent work he wont get in to this func when i Release the button
10X

MouseMotionListener doesn't specify mouseReleased, so I don't think that method is ever being called. Have your anonymous class implement MouseListener instead.

Also, why are you using different anonymous classes for the various methods? You only need a single implementation of MouseListener and a single implementation of MouseMotionListener.