Disegna Linea

//Applet
package disegnaLinea;

import java.applet.Applet;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.*;
import java.util.*;
public class Disegna extends Applet implements MouseMotionListener, MouseListener {

    /**
     *
     */
    private static final long serialVersionUID = 4382358404236741121L;


    public void init(){
        addMouseMotionListener(this);
        addMouseListener(this);
    }

    //private int x1, y1, x2, y2;

    private Vector <Linea> coordinate = new Vector <Linea>();
    /*private Image OffScreenImage;
    public void start(){
        OffScreenImage = createImage(getSize().width, getSize().height);
    }*/

    public void paint(Graphics g){

        for(int i = 1; i < coordinate.size()-1; i++){
            if (coordinate.get(i).getConnected())
            {
                g.drawLine(coordinate.get(i-1).getX(), coordinate.get(i-1).getY(), coordinate.get(i).getX(), coordinate.get(i).getY());
            }
        }

    }

    /*public void update(Graphics g){
        if(OffScreenImage != null){
            Graphics offScreenGraphics = OffScreenImage.getGraphics();
            offScreenGraphics.setColor(getBackground());
            //offScreenGraphics.fillRect(0, 0, getSize().width, getSize().height);
            offScreenGraphics.setColor(g.getColor());
            paint(offScreenGraphics);
            g.drawImage(OffScreenImage, 0, 0, this);
        }
    }*/


    @Override
    public void mouseDragged(MouseEvent e) {
        /*if(x1 == 0 && y1 == 0){
            x1 = e.getX();
            y1 = e.getY();
            x2 = e.getX();
            y2 = e.getY();

        }else{
            x1 = x2;
            y1 = y2;
            x2 = e.getX();
            y2 = e.getY();
        }

        getGraphics().drawLine(x1, y1, x2, y2);*/

        coordinate.add(new Linea(e.getX(), e.getY(), true));
        repaint();
    }

    @Override
    public void mouseMoved(MouseEvent e) {
        // TODO Auto-generated method stub
    }

    @Override
    public void mouseClicked(MouseEvent arg0) {
        // TODO Auto-generated method stub

    }

    @Override
    public void mouseEntered(MouseEvent arg0) {
        // TODO Auto-generated method stub

    }

    @Override
    public void mouseExited(MouseEvent arg0) {
        // TODO Auto-generated method stub

    }

    @Override
    public void mousePressed(MouseEvent e) {
        coordinate.add(new Linea(e.getX(), e.getY(), false));

    }

    @Override
    public void mouseReleased(MouseEvent e) {
        /*x1 = 0;
        y1 = 0;*/
    }

}

//Classe da Vectorizzare
package disegnaLinea;

public class Linea {
    private int x, y;
    private boolean isConnected;

    public Linea(int _x, int _y, boolean isConnected){
        this.x = _x;
        this.y = _y;
        this.isConnected = isConnected;
    }

    public int getX(){
        return this.x;
    }

    public int getY(){
        return this.y;
    }

    public boolean getConnected()
    {
        return isConnected;
    }

}