Java Applet Program: import java.awt.* ; public class TesApplet extends java. applet . Applet { public void paint ( Graphics g ){ Font f = new Font ( "Tahoma" , Font . BOLD , 60 ) ; g. setFont ( f ) ; g. setColor ( Color . GRAY ) ; 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 ) ; } } Output: JavaFX Program: import javafx.application.Application ; import javafx.application.Platform ; import javafx.event.ActionEvent ; import javafx.event.EventHandler ; import javafx.geometry.Insets ; import javafx.geometry.