import javax.swing.JFrame; public class LineDraw { public static void main(String []argv) { System.out.println("Line Painter\n"); LinePainter lp = new LinePainter(); LineMouseListener lm = new LineMouseListener(lp); lp.addMouseListener(lm); JFrame f = new JFrame(); f.add(lp); f.setSize(400,400); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setVisible(true); } }