Main.java Source code

Java tutorial

Introduction

Here is the source code for Main.java

Source

import java.awt.Graphics;
import java.awt.Polygon;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class Main extends JPanel {

    public void paint(Graphics g) {
        super.paintComponent(g);
        int radius = 40;
        int centerX = 50;
        int centerY = 100;

        Polygon p = new Polygon();
        centerX = 150;
        for (int i = 0; i < 5; i++)
            p.addPoint((int) (centerX + radius * Math.cos(i * 2 * Math.PI / 5)),
                    (int) (centerY + radius * Math.sin(i * 2 * Math.PI / 5)));

        g.fillPolygon(p);

    }

    public static void main(String[] args) {
        JFrame frame = new JFrame();
        frame.add(new Main());
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setBounds(20, 20, 500, 500);
        frame.setVisible(true);
    }
}