수다닷컴

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Painter extends JFrame {
private int pointCount = 0;

private Point points[] = new Point[1000];

public Painter()
{
super(A simple paint program);
getContentPane().add(new JLabel(Drag the mouse to draw), BorderLayout.SOUTH);

addMouseMotionListener(
new MouseMotionAdapter() {
public void mouseDragged(MouseEvent event)
{
if(pointCountpoints.length) {
points[pointCount]=event.getPoint();
++pointCount;
repaint();
}
}
}
);

setSize(300, 150);
setVisible(true);
}

public void paint(Graphics g)
{
super.paint(g);

for(int i=0; ipoints.length&&points[i] != null; i++)
g.fillOval(points[i].x, points[i].y, 4, 4);
}

public static void main(String[] args) {

Painter application = new Painter();
application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
간단히 그림을 그리는 프로그램인데... 왜 에러가 나는지...-_-;

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