Draw method is not working

Question

Why the drawLine() is working only inside the paint method??
BufferedImage image = new BufferedImage(800,500,BufferedImage.TYPE_INT_ARGB);
     Graphics2D g = (Graphics2D)image.getGraphics();
public void paint(Graphics g)
               g.setColor(Color.black);
                         //Here, the drawLine() method works
               g.drawLine(50,0,50,150);
public void paintX(Graphics g,Point c)
                    //Here, the drawLine() method does not work
                    g.setColor(Color.black);
               g.drawLine(0-e,0-e,50-e,50-e);
               g.drawLine(0-e,50-e,50-e,0-e);
               repaint();
     }

Answer 1

er, unless you're using JDK 1.5 and it introduces methods I know nothing about, as far as I know
public void paintX(..) is not a AWT or Swing method. Thus it will never be invoked unless you call it.