MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Composite;
import java.awt.Container;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.geom.Rectangle2D;

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

public class MainClass {
    public static void main(String[] args) {
        JFrame jf = new JFrame("Demo");
        Container cp = jf.getContentPane();
        MyCanvas tl = new MyCanvas();
        cp.add(tl);
        jf.setSize(300, 200);
        jf.setVisible(true);
    }
}

class MyCanvas extends JComponent {

    public void paint(Graphics g) {
        Graphics2D g2 = (Graphics2D) g;

        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

        Rectangle2D r = new Rectangle2D.Double(50, 50, 150, 100);
        g2.setPaint(Color.red);
        g2.fill(r);

        Composite c = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, .4f);
        g2.setComposite(c);

        g2.setPaint(Color.blue);
        g2.setFont(new Font("Times New Roman", Font.PLAIN, 72));
        g2.drawString("www.java2s.com", 25, 130);
    }
}