Program Hello, world!

Hello, world! este un program de calculator foarte simplu care doar afișează pe dispozitivul de ieșire (de obicei, ecran) textul englez Hello, world!. Este folosit pentru a testa funcționarea compilatorului sau pentru a ilustra începătorilor limbajul de programare ales.

ABAP 

Report ZHello.
write 'Hello, World!'.

Ada 

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

ALGOL 

BEGIN
   DISPLAY ("Hello, world!");
END.

AppleScript 

display dialog "Hello, world!"

AutoIt 

#include <MsgBoxConstants.au3>
 
Msgbox($MB_ICONINFORMATION, "", "Hello, world!")

AWK 

BEGIN { print "Hello, world!" }

BASIC 

PRINT "Hello, world!"

Batch 

@echo Hello, World!

Boo (limbaj de programare) 

print "Hello, world!"

Brainfuck 

++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.

C 

#include <stdio.h>
 
int main(void)
{
    printf("Hello, World!\n");
    return 0;
}

C++ 

#include <iostream>
int main()
{
    std::cout << "Hello, world!" << std::endl;
    return 0;
}

sau 

#include <iostream>
using namespace std;
int main()
{
    cout << "Hello, world!" << endl; // endl sau "\n";
    return 0;
}

C# 

class HelloWorldApp
{
    static void Main()
    {
        System.Console.WriteLine("Hello, world!");
    } 
}

Clean 

module hello
 Start :: {#Char}
 Start = "Hello, world!"

CoffeeScript 

alert('Hello, world!')

D 

import std.stdio;
 
void main()
{
  writeln("Hello, world!");
}

E 

println("Hello, world!")

Fortran 

program hello
    write(*,*) 'Hello, world!'
end program hello

Haskell 

module Main (main) where
 
main = putStrLn "Hello, world!"

J 

'Hello, world!'

Java 

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

JavaScript 

document.write('Hello, world!');

sau ca un mesaj de alertă: 

alert('Hello, world!');

Lisp

Common Lisp 

(print "Hello world!")

Scheme 

(let ((hello0 (lambda() (display "Hello world") (newline))))
  (hello0))

LOLCODE 

HAI
CAN HAS STDIO?
VISIBLE "HAI WORLD!"
KTHXBYE

Lua 

print("Hello, world!")

MATLAB 

disp('Hello, world!')

Oberon 

MODULE Hello;
   IMPORT Out;
BEGIN
   Out.String("Hello, world!");
   Out.Ln
END Hello.

Objective-C 

#import <stdio.h>
#import <Foundation/Foundation.h>
 
int main(void)
{
    NSLog(@"Hello, world!\n");
    return 0;
}

OpenEdge Advanced Business Language 

 DISPLAY "Hello World!".

Oz 

{Show 'Hello, world!}

Pascal 

program hello;
begin
    writeln('Hello, world!');
    readln;
end.

Perl 

print "Hello, world!\n";

Piet

PHP 

<?php echo "Hello, World!\n";?>

sau, mai simplu: 

<?="Hello, World!\n"?>

Prolog 

main :- write('Hello, world!'), nl.

Python 

print ( "Hello, world!" )

sau 

  import sys
  sys.stdout.write("Hello, world!\n")

R 

cat('Hello, world!\n')

REXX 

say Hello, world!

Ruby 

print "Hello, world!"

Scheme 

(let ((hello0 (lambda() (display "Hello world") (newline))))
  (hello0))

Seed7 

$ include "seed7_05.s7i";

const proc: main is func
  begin
    writeln("Hello, world!");
  end func;

Smalltalk 

Transcript show: 'Hello, world!'.

SQL 

SELECT 'Hello, world!' FROM DUMMY;
SELECT 'Hello, world!' FROM DUAL;
SELECT 'Hello, world!';

Tcl/TK 

puts "Hello, world!"

Turing 

put "Hello, world!"

Visual Basic 

Sub Main()
  Print "Hello, world!"
End Sub

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