Common Lisp Hello World!

Suppose a function foo writes to standard output:
(defun foo () (format t "Hello, world")) 
To capture its output in a character string, *standard-output* can be bound to a string stream and called:
(with-output-to-string (*standard-output*) (foo))

COMAL Hello World!

PRINT "Hello World!"

Cola Hello World!

string mesg = "Hello world\n"; main() { print(mesg); }

Corba Hello World!

class Hello def main print 'Hello, World'

Hello World Oxygene!

namespace ConsoleApplication1;

uses 
  System.Linq;

type
  ConsoleApp = class
  public
    class method Main;
  end;

class method ConsoleApp.Main;
begin
  Console.WriteLine('Hello World.');
end;
 
end.

Hello World Charm!

ext proc write_string (ref array char);
    module hello_world;
        ent proc start ();
            write_string ("Hello world");
        end_proc;
    end_module;

Hello World Caml!

print_endline "Hello world!";;

Hello World C/AL!

MESSAGE('hello, world');

Hello World Boo!

print "Hello, world!"

Hello World Batch!

@ECHO off
ECHO Hello World!
PAUSE
@ECHO on

Hello World BASIC

PRINT "Hello World"

Hello World Bash!

echo "Hello World!"

Hello World AWK!

BEGIN { print "Hello, world!" }

Hello World AutoIt!

; Displays "Hello, world!" in a MsgBox and exits.
MsgBox(0, "Title", "Hello, world!")
Exit

Hello World Ateji PX!

public class HelloWorld {
  public static void main(String[] args) {
    [
      || System.out.println("Hello World");
    ]
  }
}

Hello World ABAP!

REPORT TEST.
WRITE 'Hello World'.

Hello World Arc!

 (prn "Hello, World")

Hello World Ada!

with Ada.Text_IO; use Ada.Text_IO;
procedure Hello is
begin
  Put_Line("Hello, world!");
end Hello;

Hello World AMPLE!

/* A simple Hello World Example */
function hello() 
{
  // Single Line output
  $writeln("Hello World !");
}

Hello World ActionScript 3.0

package com.example
{
    import flash.text.TextField;
    import flash.display.Sprite;
 
    public class Greeter extends Sprite
    {
        public function Greeter()
        {
            var txtHello:TextField = new TextField();
            txtHello.text = "Hello World";
            addChild(txtHello);
        }
    }
}