如何使用Swing全屏

import java.awt.Color;import java.awt.Font;import java.awt.Graphics;import java.awt.GraphicsDevice;import java.awt.GraphicsEnvironment;import java.awt.event.MouseAdapter;import java.awt.event.MouseEvent;import javax.swing.JWindow;public class FullScreenTest { public static void main(String[] args) { GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); GraphicsDevice gd = ge.getDefaultScreenDevice(); FullScreenWindow myWindow = new FullScreenWindow(); if (gd.isFullScreenSupported()) { gd.setFullScreenWindow(myWindow); } else { System.out.println("Unsupportedfullscreen."); } } static class FullScreenWindow extends JWindow { public FullScreenWindow() { this.addMouseListener(new MouseAdapter() { @Override public void mousePressed(MouseEvent evt) { quit(); } }); } public void quit() { this.dispose(); } @Override public void paint(Graphics g) { g.setFont(new Font("Arial", Font.BOLD, 30)); g.setColor(Color.RED); g.drawString("this is Full model", 100, 100); } }}?

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