Add line as Component JPanel

Question

hai,
I need to add a line as a Component to a JPanel
and the line shd listen to mouse events like
     mouseDrag : line move etc.
can anyone help?
anu

Answer 1

Run this sample, 2 lines that can be dragged.
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class Lines extends JFrame
     JPanel  pan  = new JPanel();
public Lines()
     addWindowListener(new WindowAdapter()
    {     public void windowClosing(WindowEvent ev)
          {     dispose();
               System.exit(0);}});
     setBounds(10,10,640,440);
     getContentPane().add(pan,BorderLayout.CENTER);
     pan.setLayout(null);
     myLine p1 = new myLine();
     p1.setBounds(20,20,400,3);
     p1.setBackground(Color.red);
     pan.add(p1);
     myLine p2 = new myLine();
     p2.setBounds(110,10,2,300);
     p2.setBackground(Color.blue);
     pan.add(p2);
     setVisible(true);
public class myLine extends JComponent
       int mx;
     int my;
public myLine()
     addMouseListener(new MouseAdapter()     
     {     public void mousePressed(MouseEvent m)
               mx = m.getX();
               my = m.getY();
     addMouseMotionListener(new MouseMotionAdapter()          
     {     public void mouseDragged(MouseEvent m)
               int x = getX() + m.getX() - mx;
               int y = getY() + m.getY() - my;
               setLocation(x,y);
public void paint(Graphics g)
     g.setColor(getBackground());
     g.fillRect(0,0,getWidth(),getHeight());
public static void main (String[] args) 
     new Lines();
}Noah