Program Hello, world!

Hello, world! este un program foarte simplu care doar afişează pe dispozitivul de ieşire (de obicei, ecran), pentru a testa funcţionarea compilatorului sau a pentru verifica dificultatea limbajului de programare.

ABAP

Report ZHello.
write 'Hello, World!'.

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!\n";
     return 0;
 }

C#

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

Haskell

module Main (main) where

main = putStrLn "Hello, world!"

Java

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

JavaScript

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

sau ca un mesaj de alertă:

alert('Hello, world!');

LISP

(print "Hello world!") 

(în dialectul Common Lisp )

Pascal

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

Perl

print "Hello, world!\n";

PHP

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

sau, mai simplu:

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

Python

print ( "Hello, world!" )

sau

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

Ruby

puts "Hello, world!"

Seed7

$ include "seed7_05.s7i";

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

SQL

CREATE TABLE message (text char(15));
INSERT INTO message (text) VALUES ('Hello, world!');
SELECT text FROM message;
DROP TABLE message;

sau, doar afisare, fara tabela:

SELECT 'Hello, world!' FROM DUAL;

Tcl/TK

puts "Hello, world!"

Visual Basic

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