Class Painter: Drawing with Mouse in Java

programmerpro - Class Painter can be used to create small programs that make up the line with the mouse (when the mouse-drag).

Here's his view:

program :

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 ("Program menggambar sederhana");

        getContentPane().add(new JLabel("Drag mouse to draw"), BorderLayout.SOUTH);

        addMouseMotionListener (

            new MouseMotionAdapter() {

                public void mouseDragged (MouseEvent e) {

                    if (pointCount < points.length) {

                        points[pointCount] = e.getPoint();

                        ++pointCount;

                        repaint();

                    }

                }

            } //end of anonymous class

        ); //end method addMotionListener

        setSize (300,150);

        setLocationRelativeTo(null);

        setVisible(true);

    }

    public void paint (Graphics g) {

        super.paint(g);

        for (int i = 0; i < points.length && points[i] != null; i++) {

            g.setColor(Color.red);

            g.fillOval (points[i].x, points[i].y, 4,4);

        }

    }

    public static void main (String args[]) {

     Painter test = new Painter();

     test.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }

}

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