package lineProject;
public class ExperimentalClass {
private static int click = 0;
static ArrayList<Point> pointStore = new ArrayList<Point>();
// as much as possible, don't use the water in the tank when they're off
// because it can cause air locks. You'll get no water anyway if the tank is
// empty
public static void main(String[] args) throws Exception {
JFrame f = new JFrame("Draw a red line");
f.setSize(300, 300);
f.setLocation(300, 300);
f.setResizable(false);
JPanel p = new JPanel() {
Point pointStart = null;
Point pointEnd = null;
{
addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
pointStart = e.getPoint();
}
public void mouseReleased(MouseEvent e) {
if(click==0){
click++;
pointStore.add(e.getPoint());
}
else{
pointEnd = e.getPoint();
pointStart=pointStore.get(0);
pointStore.remove(0);
click=0;
}
}
});
addMouseMotionListener(new MouseMotionAdapter() {
public void mouseMoved(MouseEvent e) {
pointEnd = e.getPoint();
}
public void mouseDragged(MouseEvent e) {
pointEnd = e.getPoint();
repaint();
}
});
}
public void paint(Graphics g) {
super.paint(g);
if (pointStart != null) {
g.setColor(Color.red);
g.drawLine(pointStart.x, pointStart.y, pointEnd.x,
pointEnd.y);
}
}
};
f.add(p);
f.setVisible(true);
}
}