Hello world/Graphical
You are encouraged to solve this task according to the task description, using any language you may know.
In the User Output task, the goal is to display the string "Goodbye, World!" on a graphical console.
ActionScript
trace("Goodbye, World!");
AppleScript
display dialog "Goodbye, World!" buttons {"Bye"}
C
#include int main (int argc, char **argv) { GtkWidget *window; gtk_init(&argc, &argv); window = gtk_window_new (GTK_WINDOW_TOPLEVEL); gtk_window_set_title (GTK_WINDOW (window), “Goodbye, World”); g_signal_connect (G_OBJECT (window), “delete-event”, gtk_main_quit, NULL); gtk_widget_show_all (window); gtk_main(); return 0; }
C#
Compiler: Mono
using Gtk; using GtkSharp; public class GoodbyeWorld { public static void Main(string[] args) { Gtk.Window window = new Gtk.Window(); window.Title = "Goodbye, World"; window.DeleteEvent += delegate { Application.Quit(); }; window.ShowAll(); Application.Run(); } }
C++
Compiler: GCC 3.3.5
#include <gtkmm.h> int main(int argc, char *argv[]) { Gtk::Main app(argc, argv); Gtk::MessageDialog msg("Goodbye, World!"); msg.run(); }
Clean
import StdEnv, StdIO
Start :: *World -> *World Start world = startIO NDI Void (snd o openDialog undef hello) [] world where hello = Dialog "" (TextControl "Goodbye, World!" []) [WindowClose (noLS closeProcess)]
Java
import javax.swing.*; public class OutputSwing { public static void main(String[] args) throws Exception { JOptionPane.showMessageDialog (null, "Goodbye, World!"); } }
JavaScript
Interpreter: Firefox 2.0
This pops up a small dialog, so it might be termed GUI display.
alert("Goodbye, World!");
Objective-C
To show a modal alert:
NSAlert *alert = [[[NSAlert alloc] init] autorelease]; [alert setMessageText:@"Goodbye, World!"]; [alert runModal];
OCaml
let delete_event evt = false
let destroy () = GMain.Main.quit ()
let main () =
let window = GWindow.window in let _ = window#set_title "Goodbye, World" in let _ = window#event#connect#delete ~callback:delete_event in let _ = window#connect#destroy ~callback:destroy in let _ = window#show () in GMain.Main.main ()
let _ = main () ;;
Perl
Interpreter: Perl 5.8.8
Just output as a label in a window:
use Tk; $main = MainWindow->new; $main->Label(-text => 'Goodbye, World')->pack; MainLoop();
Output as text on a button that exits the current application:
use Tk; $main = MainWindow->new; $main->Button( -text => 'Goodbye, World', -command => \&exit, )->pack; MainLoop();
use Gtk2 '-init'; $window = Gtk2::Window->new; $window->set_title('Goodbye world'); $window->signal_connect( 'destroy' => sub { Gtk2->main_quit; } ); $label = Gtk2::Label->new('Goodbye, world'); $window->add($label); $window->show_all; Gtk2->main;
MAXScript
messageBox "Goodbye world"
PHP
if (!class_exists('gtk')) { die("Please load the php-gtk2 module in your php.ini\r\n"); } $wnd = new GtkWindow(); $wnd->set_title('Goodbye world'); $wnd->connect_simple('destroy', array('gtk', 'main_quit')); $lblHello = new GtkLabel("Goodbye, World!"); $wnd->add($lblHello); $wnd->show_all(); Gtk::main();
Pop11
PostScript
In the geenral Postscript context, the show command will render the string that is topmost on the stack at the currentpoint in the previously setfont. Thus a minimal PostScript file that will print on a PostScript printer or previewer might look like this:
%!PS % render in Helvetica, 12pt: /Helvetica findfont 12 scalefont setfont % somewhere in the lower left-hand corner: 50 dup moveto % render text (Goodbye World) show % wrap up page display: showpage
Python
Interpreter: Python 2.5
import tkMessageBox result = tkMessageBox.showinfo("Some Window Label", "Goodbye, World!")
Note: The result is a string of the button that was pressed.
import pygtk pygtk.require('2.0') import gtk window = gtk.Window() window.set_title('Goodbye, World') window.connect('delete-event', gtk.main_quit) window.show_all() gtk.main()
Ruby
require 'gtk2' window = Gtk::Window.new window.title = 'Goodbye, World' window.signal_connect(:delete-event) { Gtk.main_quit } window.show_all Gtk.main
Tcl
Just output as a label in a window:
pack [label .l -text "Goodbye, World"]
Output as text on a button that exits the current application:
pack [button .b -text "Goodbye, World" -command exit]
Visual Basic .NET
Compiler: Visual Basic 2005
Module GoodbyeWorld Sub Main() Messagebox.Show("Goodbye, World!") End Sub End Module