import java.awt.*;
public class TesApplet extends java.applet.Applet{

    public void paint(Graphics g){
        Font f = new Font("SansSerif", Font.BOLD, 20);
        g.setFont(f);
        g.setColor(Color.BLUE);

        int xPusat = this.getSize().width/2;
        int yPusat = this.getSize().height/2;

        String s = "Selamat Belajar Java Applet";
        FontMetrics fm = this.getFontMetrics(f);
        int posisiX = xPusat - (fm.stringWidth(s)/2);
        g.drawString("Selamat Belajar java Applet", posisiX, yPusat);
    }
}