Java tutorial
import java.awt.Color; import java.awt.Dimension; import java.awt.Font; import java.awt.Graphics; import javax.swing.JFrame; import javax.swing.JPanel; public class MainClass extends JPanel { public void paint(Graphics g) { Dimension d = this.getPreferredSize(); int fontSize = 20; g.setFont(new Font("TimesRoman", Font.PLAIN, fontSize)); g.setColor(Color.red); g.drawString("www.java2s.com", 10, 20); } public static void main(String[] args) { JFrame frame = new JFrame(); frame.getContentPane().add(new MainClass()); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(200, 200); frame.setVisible(true); } }