Java tutorial
import java.awt.Dimension; import java.awt.Toolkit; import javax.swing.JFrame; import javax.swing.JPanel; public class Main extends JFrame { public Main() { setDefaultCloseOperation(EXIT_ON_CLOSE); JPanel panel = new JPanel(); panel.setPreferredSize(new Dimension(333, 666)); add(panel); pack(); if (Toolkit.getDefaultToolkit().isFrameStateSupported(MAXIMIZED_BOTH)) { setExtendedState(MAXIMIZED_BOTH); } else { Dimension max = Toolkit.getDefaultToolkit().getScreenSize(); max.height -= 20; setSize(max); setLocation(0, 20); } setVisible(true); } public static void main(String... args) { new Main(); } }