Thread: Java Graphics

import java.awt.*;
import javax.swing.*;

public class Rect1{
//constructer
public Rect1(){
frame();

}
//frame() method
//to draw JFrame

public void frame(){
JFrame f=new JFrame();
f.setSize(600,600);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);

}

//draw graphics
public void paintComponent(Graphics g){

g.setColor(Color.RED);
g.fillRect(20,20,40,50);

g.setColor(Color.BLUE);
g.drawString("This is a Hello World Program",50,50);


}
//main method
public static void main(String args[]){
new Rect1();

}

}