What's the fastest way to draw a Hello World in Java

Question

What\'s the fastest way to draw a Hello World on the screen using a GUI in Java:

1- by using the minimum number of classes.

2- with the leas

Answer 1

this is the fastest graphical Hello world i could get.

public class HelloWorld{
    public static void main(String[] args) {
        javax.swing.JOptionPane.showMessageDialog(null, "Hello World");
    }
}

Answer 2

The SplashScreen class would be tough to beat as it can display an image even before JVM starts, though I'm not sure if it qualifies for a "GUI".

With an empty main() (which results in a 370-byte class file with Win XP JDK6), java -splash:helloworld.png <class> (or a jar) would run faster than you can blink.

Or you can use this trivial class to control how long you'll see the image:

public class DoNothing
{
    public static void main(String[] args) throws InterruptedException
    {
        int i = 1000;
        if( args != null && args.length > 0 )
            try{ i = Integer.parseInt(args[0]); }
            catch( NumberFormatException ex ) {} 
        Thread.sleep(i);
    }
}

Answer 3

If you're optimizing for runtime then pre-render an image with the text "Helo World" and then use Java to display it as an image. You can use ImageIcon to easily display an image.