MyCanvas.java Source code

Introduction

Here is the source code for MyCanvas.java

Source

import java.awt.Graphics;

import javax.swing.JComponent;
import javax.swing.JFrame;

class MyCanvas extends JComponent {

    public void paint(Graphics g) {
        int[] x = new int[] { 100, 200, 300, 400 };
        int[] y = new int[] { 400, 300, 300, 100 };
        g.drawPolygon(x, y, x.length);
    }
}

public class DrawPolygon {
    public static void main(String[] a) {
        JFrame window = new JFrame();
        window.setBounds(30, 30, 300, 300);
        window.getContentPane().add(new MyCanvas());
        window.setVisible(true);
    }
}