JAVA全屏模式

    import java.awt.DisplayMode;  
    import java.awt.FlowLayout;  
    import java.awt.GraphicsDevice;  
    import java.awt.GraphicsEnvironment;  
    import java.awt.Insets;  
    import java.awt.event.ActionEvent;  
    import java.awt.event.ActionListener;  
      
    import javax.swing.JButton;  
    import javax.swing.JFrame;  
      
    public class FullScreenDemo {  
        public static void main(String[] args) {  
            JFrame window = new JFrame(); 
            
            window.setUndecorated(true);  
            window.setResizable(false);  
            window.setLayout(new FlowLayout());  
            JButton button = new JButton("close window");  
            button.setMargin(new Insets(0, 0, 0, 0));  
            button.addActionListener(new ActionListener() {  
                @Override  
                public void actionPerformed(ActionEvent e) {  
                    System.exit(0);  
                }  
            });  
            window.add(button);  
              
            DisplayMode displayMode = new DisplayMode(1440,900,32,75);//分辨率800*600,16色深,75HZ  
            /*
             * 下面为主要的设置全屏
             */
            GraphicsEnvironment environment = GraphicsEnvironment.getLocalGraphicsEnvironment();  
            GraphicsDevice device = environment.getDefaultScreenDevice();  
            //use the Jframe as the full screen window  
            device.setFullScreenWindow(window);  
            //如果要退出全屏  
            //device.setFullScreenWindow(null);  
            //change　the displaymode  
            if(displayMode != null && device.isDisplayChangeSupported()){  
                try {  
                    device.setDisplayMode(displayMode);               
                } catch (Exception e) {  
                }  
            }  
              
        }  
    }  

转自网络！感谢分享！