Swing实现全屏（覆盖任务栏和不覆盖任务栏）

不覆盖任务栏的方式

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;

public class FullScreenTest2
{
public static void main(String[] args)
{
final JFrame f = new JFrame("FullScreenTest");
final JButton btn = new JButton("FullScreen");
btn.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
if (btn.getText().equals("FullScreen")) {
f.dispose();
f.setUndecorated(true);

Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
Rectangle bounds = new Rectangle(screenSize);
Insets insets = Toolkit.getDefaultToolkit().getScreenInsets(f.getGraphicsConfiguration());
bounds.x += insets.left;
bounds.y += insets.top;
bounds.width -= insets.left + insets.right;
bounds.height -= insets.top + insets.bottom;

f.setBounds(bounds);
f.setVisible(true);
btn.setText("NormalMode");
}
else {
f.dispose();
f.setUndecorated(false);
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
btn.setText("FullScreen");
}
}
});

f.getContentPane().setLayout(new FlowLayout());
f.getContentPane().add(btn);
f.pack();
f.setLocationRelativeTo(null);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
}
}

覆盖任务栏的方式

import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;

public class FullScreenTest
{
public static void main(String[] args)
{
final JFrame f = new JFrame("FullScreenTest");
final JButton btn = new JButton("FullScreen");
btn.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
if (btn.getText().equals("FullScreen")) {
f.dispose();
f.setUndecorated(true);
f.getGraphicsConfiguration().getDevice().setFullScreenWindow(f);
f.setVisible(true);
btn.setText("NormalMode");
}
else {
f.dispose();
f.setUndecorated(false);
f.getGraphicsConfiguration().getDevice().setFullScreenWindow(null);
f.setVisible(true);
btn.setText("FullScreen");
}
}
});

f.getContentPane().setLayout(new FlowLayout());
f.getContentPane().add(btn);
f.pack();
f.setLocationRelativeTo(null);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
}
}