package me.Kenny.GUI_WINDOW_INITILIZATION;

public static void main(String[] args){

    DisplayMode dm = new DisplayMode(1200,800,32, DisplayMode.REFRESH_RATE_UNKNOWN);
    Main m = new Main();
    m.run(dm);

}

public void run(DisplayMode dm1){

    setBackground(Color.PINK);
    setForeground(Color.WHITE);
    setFont(new Font("Arial", Font.PLAIN, 24));

    Screen s = new Screen();

    try{

        s.setFullScreen(dm1, this);
        try{

            Thread.sleep(5000);

        }catch(Exception e){}

    }finally{

        s.restoreScreen();
    }


}


public void paint(Graphics g){

    g.drawString("This is gonna be awesome", 300, 300);


}

package me.Kenny.GUI_WINDOW_INITILIZATION;

private GraphicsDevice vc;

public Screen(){

    GraphicsEnvironment env = GraphicsEnvironment.getLocalGraphicsEnvironment();

    vc = env.getDefaultScreenDevice();

}

public void setFullScreen(DisplayMode dm, JFrame window){

    window.setUndecorated(true);
    window.setResizable(false);
    vc.setFullScreenWindow(window);

    if(dm != null && vc.isDisplayChangeSupported()){

        try{

            vc.setDisplayMode(dm);
            System.out.println("is in try");

        }catch(IllegalArgumentException ex){

            System.out.println("Unable to set Display mode");

        }

    }

}

public Window getFullScreenWindow(){

    return vc.getFullScreenWindow();
}



public void restoreScreen(){

    Window w = vc.getFullScreenWindow();

    if (w != null){
        w.dispose();

    }

    vc.setFullScreenWindow(null); //closes window
}