Write a hello world GUI program that closes itself after three seconds

Question

Please read the rules, and the bold areas as well.

Write a program in any language, so long as it has GUI support for a window system (cannot be text-consoles, etc., and must be a GUI/toolkit/window).

The program must say hello world in any manner (splash image, menu bar, status bar, title, video, message box, other widget stuff, etc.), so long as a GUI-compliant window appears and shows this text for three seconds. The person who can code this in the least amount of code used, counted in bytes, will take the cake.

Answer 1

PowerShell, 72 49

saps -pa notepad "Hello World"|%{sleep 3;kill $_}

Thanks to @joey for continued golfing

Answer 2

CMD / Batch - 33 Bytes

I believe the window that the Windows CMD terminal runs in counts as GUI compliant.

start "Hello world" cmd /csleep 3

If you don't have the sleep command on your system - then you can use timeout which comes default in Windows 7. For two more bytes.

start "Hello world" cmd /ctimeout 3

Starts a new CMD window with the title "Hello World" (NOT displayed in the terminal itself, but as the title of the GUI window that the terminal runs in), this window will close as soon as all parsed commands have executed - so after sleep 3 or timeout 3 has completed.

The window looks like this -

Note; start runs the given commands in a new window - not the window that you are running the above commands from.

Answer 3

Java, 153 bytes

interface a{static void main(String[]A){new Thread(()->javax.swing.JOptionPane.showMessageDialog("Hello world")).start();Thread.sleep(3000);throw null;}}

Points to null three seconds after popping up a quite ugly window with the text "Hello world" on it.

Answer 4

SmileBASIC, 23 bytes

DIALOG"hello world",,,3

Answer 5

APL (Dyalog APL), 36 bytes

⎕EX(⎕DL 3)⊢⎕A⎕WC'Form' 'hello world'

⎕A  uppercase Alphabet (the only legal name which can be written with two characters)

⎕WC Window Create (and return name of)

'Form' 'hello world' a GUI form with appropriate caption

⊢ yield the form's name while ignoring the result of

(⎕DL 3) Delaying 3 seconds (the ignored result is the elapsed time)

⎕EX Expunge the form (thus making it disappear)

This only works on Windows.

Answer 6

C (MSVC) + Windows API, 130 119

-11 thanks to @EasyasPi

#include<windows.h>
main(){GetProcAddress(LoadLibrary("user32.dll"),"MessageBoxTimeoutA")(0,"Hello World",0,0,0,3000);}

Never thought the Windows API could get this short! Many thanks to this Stack Overflow answer for documenting the undocumented MessageBoxTimeoutA function.

Answer 7

Python 3, 83 72 bytes

from tkinter import*
f=Tk()
f.wm_title("Hello World")
f.after(3000,exit)

Save bytes by using tkinter.

The old method added a Label to the frame. This method sets the title of the frame to Hello World. f.after(3000,exit) runs exit() after 3000 milliseconds have passed.

Answer 8

Cobra - 180

use System.Windows.Forms
use System.Threading
class M
    def main
        Thread(ref .w).start
        Thread.sleep(3000)
        Environment.exit(0)
    def w
        MessageBox.show("hello world")

Answer 9

Ruby [with Shoes] (44 chars)

Shoes.app{para "Hello world";every(3){exit}}

Answer 10

C# 124

Far from the shortest :(

class P{static void Main(){new System.Windows.Forms.Form(){Text="Hello World"}.Show();System.Threading.Thread.Sleep(3000);}}

Answer 11

Bash with xterm, 34

Uses the title of an xterm window to display "Hello World". Does close after 3 seconds.

xterm -T Hello\ World -e sleep\ 3

If displaying Hello_World (without a space) is allowed, you can save one char (xterm -T Hello_World -e sleep\ 3).

Answer 12

Legacy C/Xt/Motif (240)

Super old-school entry!

Link with -lXm -lXt -lX11, order matters.

Also curious if this works on other *nix platforms, because the XFlush is me subverting what I'm supposed to do (enter the application loop) in order that I don't have to install a timer to shut down after 3 seconds (and consume more characters).

#include <Xm/XmAll.h>
int main(int n,char **v){XtAppContext c;Widget t=XtVaAppInitialize(&c,"h",NULL,0,&n,v,NULL,NULL);XtVaSetValues(t,XmNtitle,"Hello World",XmNminWidth,300,NULL);XtRealizeWidget(t);XFlush(XtDisplay(t));sleep(3);return 0;}

Answer 13

TCL, 52 bytes

label .l -text Hello\ World
pack .l
after 3000 exit

Answer 14

JavaScript (51)

Some old JavaScript methods that still exist because they existed in Netscape 2. document.write replaces the page with a string. setTimeout calls a function after given time (in miliseconds). close closes the window. Doesn't work in Firefox JS console, but it works when imported with <script> or in other browsers' JavaScript consoles.

document.write("Hello world")
setTimeout(close,3e3)

Answer 15

Factor, 128 bytes

[ f T{ world-attributes { title "" } } clone "Hello world" <label> >>gadgets open-window* 3 seconds sleep close-window ] with-ui

Answer 16

05AB1E + Message permission, 39 bytes

'‚«™’ÿ.¬•"ÄÖ/€º:3 * Ÿ™ ‚ï"’.E

---

'‚«™’...’.E  # trimmed program
         .E  # evaluate...
    ’...’    # "ÿ.shell\"msg/time:3 * hello world\""...
             # (implicit) with ÿ replaced by...
'‚«          # "system"...
   ™         # in title case...
         .E  # as Elixir code

====================

System.shell"..."  # trimmed program
System.shell       # execute shell command...
            "..."  # literal

====================

msg/time:3 * ...  # trimmed program
msg               # show message...
             ...  # literal...
   /time:         # that closes after...
         3        # literal...
   /time:         # seconds...
           *      # to all users

Answer 17

Ruby - 136 bytes

Using FXRuby :

require'fox16';include Fox;a=FXApp.new;timeout=a.addTimeout(3000)do|s|a.exit;end;a.create;FXMessageBox.error(a,MBOX_OK,'','Hello World')

Answer 18

VB.NET Winforms, 167

Private Sub Form2_Shown(sender As Object, e As System.EventArgs) Handles Me.Shown
    Me.Text = "hello world"
    System.Threading.Thread.Sleep(3000)
    End
End Sub

based on ace suggestion the new code is

NOW 100 Characters

 Sub f() Handles Me.Shown
Me.Text = "hello world"
System.Threading.Thread.Sleep(3000)
End
End Sub

Answer 19

Javascript (ECMAScript) + jQuery

65 Script + 23 Html = 88 Characters

Html

<div id='a'>Hello World

Script

e=$('#a'),d='dialog',x=e[d]();setTimeout(B=n=>{x.remove()},3000)

All-in-one (105 Characters)

<div id='a'>Hello World<script>e=$('#a'),d='dialog',x=e[d]();setTimeout(B=n=>{x.remove()},3000)</script>

Fiddle

 <div id="a">Hello World
 <script>
   e=$("#a"),
   d='dialog',
   x=e[d]();
   setTimeout(B=n=>{x.remove()},3000)
 </script>

Answer 20

Linux Shell, 54

echo "hello world">f;firefox f;sleep 3;killall firefox

Answer 21

HTML/JavaScript (81)

<body onload="setTimeout(function(){document.body.innerHTML=''},3e3)">Hello World

Answer 22

Tcl/Tk, 15+11=26

after 3000 exit

If I name the file "Hello world.tcl", I will automatically get the "Hello world" text as the window's title:

Answer 23

Vala + gtk+-3.0, 144 bytes

void main(string[]a){Gtk.init(ref a);var w=new Gtk.Window();w.title="hello world";w.show();Timeout.add(3000,()=>{Process.exit(0);});Gtk.main();}

First Vala program, first GTK program.

The title is hello world, but the default window size causes it to clip on my window manager.

void main(string[] args)
{
    // Initialize GTK
    Gtk.init(ref args);
    // Create a new window
    var win = new Gtk.Window();
    // Set the title
    win.title = "hello world";
    // Set the window to show
    win.show();
    // Set a timeout to exit the program after 3 seconds
    Timeout.add(3000, () => { Process.exit(0); });
    // Enter the main GTK loop to show the window
    Gtk.main();
}