ବ୍ୟବହାରକାରୀ:Snip1/List of Hello world program examples

The Hello world program is a simple computer program that prints (or displays) the string "Hello, world!" or some variant thereof. It is typically one of the simplest programs possible in almost all computer languages, and often used as first program to demonstrate a programming language. As such it can be used to quickly compare syntax differences between various programming languages. The following is a list of canonical hello world programs in 108 programming languages. ଛାଞ୍ଚ:Toc

A

ABAP

REPORT ZHELLOWORLD.
WRITE 'Hello, world!'.

ActionScript 3.0

trace ("Hello, world!");

or (if you want it to show on the stage)

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);
        }
    }
}

Ada

with Ada.Text_IO;

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

Adventure Game Studio Script

Display("Hello, world!");

or (if you want to draw it to the background surface)

DrawingSurface *surface = Room.GetDrawingSurfaceForBackground();
surface.DrawString(0, 100, Game.NormalFont, "Hello, world!");
surface.Release();

ALGOL

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

ALGOL 68

print("Hello, world!")

Amiga E

PROC main()
   WriteF('Hello, world!')
ENDPROC

APL

⎕←'Hello, world!'

AppleScript

display dialog "Hello, world!"

or if you want a button to trigger the dialog:

on helloWorld()
  display dialog "Hello, world!"
end helloWorld

helloWorld()

Assembly Language — MOS Technology 6502, CBM KERNEL

 A_CR  = $0D              ;carriage return
 BSOUT = $FFD2            ;kernel ROM sub, write to current output device
 ;
         LDX #$00         ;starting index in .X register
 ; 
 LOOP    LDA MSG,X        ;read message text
         BEQ LOOPEND      ;end of text
 ;
         JSR BSOUT        ;output char
         INX
         BNE LOOP         ;repeat
 ;
 LOOPEND RTS              ;return from subroutine
 ;
 MSG     .BYT 'Hello, world!',A_CR,$00

Assembly language – x86 DOS

; The output file is 22 bytes.
; 14 bytes are taken by "Hello, world!$
;
; Written by Stewart Moss - May 2006
; This is a .COM file so the CS and DS are in the same segment
;
; I assembled and linked using TASM
;
; tasm /m3 /zn /q hello.asm
; tlink /t hello.obj

.model tiny
.code
org 100h

main  proc

      mov    ah,9                       ; Display String Service
      mov    dx,offset hello_message    ; Offset of message (Segment DS is the right segment in .COM files)
      int    21h                        ; call DOS int 21h service to display message at ptr ds:dx

      retn                              ; returns to address 0000 off the stack 
                                        ; which points to bytes which make int 20h (exit program)

hello_message db 'Hello, world!$'

main  endp
end   main

Assembly language – x86 Windows 32-bit

; This program displays "Hello, World!" in a windows messagebox and then quits.
;
; Written by Stewart Moss - May 2006
;
; Assemble using TASM 5.0 and TLINK32
;
; The output EXE is standard 4096 bytes long.
; It is possible to produce really small windows PE exe files, but that
; is outside of the scope of this demo.
         
         .486p
         .model  flat,STDCALL
include  win32.inc

extrn            MessageBoxA:PROC
extrn            ExitProcess:PROC

.data

HelloWorld db "Hello, world!",0
msgTitle db "Hello world program",0

.code
Start:
         push    MB_ICONQUESTION + MB_APPLMODAL + MB_OK
         push    offset msgTitle
         push    offset HelloWorld
         push    0
         call    MessageBoxA
         
         push 0
         call ExitProcess
ends
end Start

Assembly language – x86-64 Linux, AT&T syntax

	.section	.rodata
string:
	.ascii "Hello, world!\n"
length:
	.quad . -string		#Dot = 'here'

	.section	.text
	.globl _start		#Make entry point visible to linker
_start:
	movq $4, %rax		#4=write
	movq $1, %rbx		#1=stdout
	movq $string, %rcx
	movq length, %rdx
	int $0x80 		#Call Operating System
	movq %rax, %rbx		#Make program return syscall exit status
	movq $1, %rax		#1=exit
	int $0x80		#Call System Again

Assembly language – Z80

 CR      EQU  $0D          ; carriage return
 PROUT   EQU  $xxxx        ; character output routine
 ;
         LD   HL,MSG        ; Point to message
 ; 
 PRLOOP  LD   A,(HL)        ; read byte from message
         AND  A             ; set zero flag from byte read
         RET  Z             ; end of text if zero
         CALL PROUT         ; output char
         INC  HL            ; point to next char
         JR   PRLOOP        ; repeat
 ;
 MSG     DB   "Hello, world!",CR,0
 ;

AutoHotkey

Msgbox, Hello, world!

Traytip,, Hello, world!

AutoIt

Msgbox(64, "", "Hello, world!")

AWK

BEGIN { print "Hello, world!" }

B

BASIC

PRINT "Hello, world!"

Batch File

@echo Hello, world!

BCPL

GET "LIBHDR"

LET START() BE
$(
  WRITES("Hello, world!*N")
$)

BennuGD

 
import "mod_say"

Process Main()
Begin 
    say("Hello World!");
End

brainfuck

+++++ +++++             initialize counter (cell #0) to 10
[                       use loop to set the next four cells to 70/100/30/10/40
    > +++++ ++              add  7 to cell #1
    > +++++ +++++           add 10 to cell #2 
    > +++                   add  3 to cell #3
    > +                     add  1 to cell #4
    > ++++                  add 4 to cell #5
    <<<<< -                  decrement counter (cell #0)
]                   
> ++ .                  print 'H'
> + .                   print 'e'
+++++ ++ .              print 'l'
.                       print 'l'
+++ .                   print 'o'
>>> ++++ .              print ','
<< ++ .                 print ' '

< +++++ +++ .           print 'w'
 ----- --- .            print 'o'
+++ .                   print 'r'
----- - .               print 'l'
----- --- .             print 'd'
> + .                   print '!'
> .                     print '\n'

C

#include <stdio.h>
#include <stdlib.h>

int main(void)
{
    printf("Hello, world!\n");
    return EXIT_SUCCESS;
}

C++

#include <iostream>

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

C++/CLI

using namespace System;

int main(array<System::String ^> ^args)
{
    Console::WriteLine(L"Hello World");
    return 0;
}

C++/CX

#include "stdafx.h"
#using <Platform.winmd>
using namespace Platform;

[MTAThread]
int main(Array<String^>^ args)
{
    String^ message("Hello World!");
    Details::Console::WriteLine(message);
}

C#

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

Casio BASIC

"HELLO, WORLD!"

CoffeeScript

To display an alert dialog box:

alert 'Hello, world!'

To write to a console/debugging log:

console.log 'Hello, world!'

COMAL-80

10 PRINT "Hello, world!"

Common Intermediate Language

.assembly Hello {}
.assembly extern mscorlib {}
.method static void Main()
{
    .entrypoint
    .maxstack 1
    ldstr "Hello, world!"
    call void [mscorlib]System.Console::WriteLine(string)
    call string[mscorlib]System.Console::ReadKey(true)
    pop
    ret
}

ColdFusion Markup Language (CFML)

CF Script:

<cfscript>
    variables.greeting = "Hello, world!";
    WriteOutput( variables.greeting );
</cfscript>

CFML Tags:

<cfset variables.greeting = "Hello, world!">
<cfoutput>#variables.greeting#</cfoutput>

Clojure

Console version:

(println "Hello, world!")

GUI version:

(javax.swing.JOptionPane/showMessageDialog nil "Hello, world!")

COBOL

       IDENTIFICATION DIVISION.
       PROGRAM-ID. HELLO-WORLD.
       PROCEDURE DIVISION.
           DISPLAY 'Hello, world!'.
           STOP RUN.

D

import std.stdio;

void main()
{
  writeln("Hello, world!");
}

Dart

main()
{
  print('Hello, world!');
}

DCL

WRITE SYS$OUTPUT "Hello, world!"

Delphi

{$APPTYPE CONSOLE}
begin
  Writeln('Hello, world!');
end.

E

Erlang

io:format("~s~n", ["Hello, world!"])

F

F#

printfn "Hello, world!"

Falcon

 printl( "Hello, world!" )

or

 > "Hello, world!"

Forth

." Hello, world! "

Fortran

Fortran 90 and later:

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

OR

program hello
   print *, 'Hello, world!'
end program hello

FORTRAN 77 and prior; also accepted in Fortran 90 and later:

       PROGRAM HELLO
       WRITE(*,*) 'Hello, world!'
       END

OR

       PROGRAM HELLO
       PRINT *, 'Hello, world!'
       END

Frost

import "io.frost";

main:args {
    [print string:"Hello, world!\n" format:{}];
}

G

Game Maker Language

show_message("Hello, World!");

Go

package main

import "fmt"

func main() {
   fmt.Println("Hello, world!")
}

Groovy

println "Hello, world!"

H

Haskell

main = putStrLn "Hello, world!"

Haxe

class Main {
    static function main() {
        trace("Hello, world!");
    }
}

HOP

(define-service (hello-world)
  (<HTML>
     (<HEAD>
	(<TITLE> "Hello, world!"))
     (<BODY>
	"Hello, world!")))

HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Hi!</title>
</head>
<body>
<p>Hello, world!</p>
</body>
</html>

I

IDL

print, "Hello, world!"
end

INTERCAL

DO ,1 <- #13
PLEASE DO ,1 SUB #1 <- #238
DO ,1 SUB #2 <- #108
DO ,1 SUB #3 <- #112
DO ,1 SUB #4 <- #0
DO ,1 SUB #5 <- #64
DO ,1 SUB #6 <- #194
DO ,1 SUB #7 <- #48
PLEASE DO ,1 SUB #8 <- #22
DO ,1 SUB #9 <- #248
DO ,1 SUB #10 <- #168
DO ,1 SUB #11 <- #24
DO ,1 SUB #12 <- #16
DO ,1 SUB #13 <- #162
PLEASE READ OUT ,1
PLEASE GIVE UP

Io

 "Hello, world!" println

ISLISP

(format (standard-output) "Hello, world!")

J

  'Hello, world!'

Java

In console:

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

or in window with Swing:

import javax.swing.JFrame;  //Importing class JFrame
import javax.swing.JLabel;  //Importing class JLabel
public class HelloWorld {
	public static void main(String[] args) {
		JFrame frame = new JFrame();           //Creating frame
		frame.setTitle("Hi!");                 //Setting title frame
		frame.add(new JLabel("Hello, world!"));//Adding text to frame
		frame.pack();                          //Setting size to smallest
		frame.setLocationRelativeTo(null);     //Centering frame
		frame.setVisible(true);                //Showing frame
	}
}

or in dialog:

import javax.swing.JOptionPane;
public class HelloWorld {
	public static void main(String[] args) {
		javax.swing.JOptionPane.showMessageDialog(null, "Hello, world!");
	}
}

JavaScript

To write to a console/debugging log:

console.log('Hello, world!');

To display an alert dialog box:

alert('Hello, world!');

To write to an HTML document:

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

Using Mozilla's Rhino:

print('Hello, world!');

L

Linden Scripting Language

llSay(0,"Hello, world!");
llShout(0, "Hello, world!");
llSayRegion(0, "Hello, world!");

Lisp

(princ "Hello, world!")

Logo

print [Hello, world!]

LOLCODE

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

Lua

print "Hello, world!"

M

M4

Hello, world!

Malbolge

('&%:9]!~}|z2Vxwv-,POqponl$Hjig%eB@@>}=<M:9wv6WsU2T|nm-,jcL(I&%$#"
`CB]V?Tx<uVtT`Rpo3NlF.Jh++FdbCBA@?]!~|4XzyTT43Qsqq(Lnmkj"Fhg${z@>

Mathematica

Print["Hello, world!"]

Maple

print(`Hello, world!`);

MATLAB

disp('Hello, world!')

mIRC Script

echo -a Hello, world!

MUMPS

main()
 write "Hello, world!"
 quit

O

Oberon

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

Obix

system.console.write_line ( "Hello, world!" )

Objective-C

#import <stdio.h>

int main(void)
{
    printf("Hello, world!\n");
    return 0;
}

Otherwise (by gcc on pre-OpenStep/Apple Object based runtime):

#import <stdio.h>
#import <objc/Object.h>

@interface Hello: Object
- (void) say;
@end

@implementation Hello
- (void) say {
  printf("Hello, world!\n");
}
@end

int main() {
  Hello *hello = [Hello new];
  [hello say];
  [hello free];
  return 0;
}

Pre-Modern (post-1994 OpenStep based Foundation APIs:

@interface Hello:NSObject
- (void) say;
@end
@implementation Hello
- (void) say {
   NSLog(@"Hello, world!");
}
@end

int main(int argc, char *argv[])
{
    NSAutoreleasePool *p = [[NSAutoreleasePool alloc] init];
    Hello *hello = [Hello new];
    [hello say];
    [hello release];
    [p release];
    return 0;
}

Modern (llvm, ARC memory management):

@interface Hello:NSObject
- (void) say;
@end
@implementation Hello
- (void) say {
   NSLog(@"Hello, world!");
}
@end

int main(int argc, char *argv[])
{
    @autoreleasepool {;
        [[Hello new] say];
    }
    return 0;
}

OCaml

 print_endline "Hello, world!"

Opa

A "hello world" web server:

Server.start(Server.http, 
    { title: "Hello, world!", 
      page: function() { <>Hello, world!</> } })

Oriel

MessageBox(OK, 1, INFORMATION, "Hello, world!", "Oriel Says Hello", ResponseValue)

Oz

{Show 'Hello World'}

P

Pascal

begin
  WriteLn('Hello, world!');
end.

Pawn

main()
{
	print("Hello, world!");
}

Perl 5

print "Hello, world!";

Or

use v5.10;
say 'Hello, world!';

PHP

<?php echo 'Hello, world!' ?>

or

<?php print 'Hello, world!' ?>

or

<?= 'Hello, world!' ?>

PL/SQL

SET SERVEROUTPUT ON;
BEGIN
    DBMS_OUTPUT.PUT_LINE('Hello, world!');
END;

PostScript

%!PS
/Courier 72 selectfont
20 20 moveto
(Hello World!) show
showpage

PowerShell

"Hello, world!"

Processing

void setup(){
  println("Hello, world!");
}

Prolog

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

Python 2

print "Hello, world!"

Python 3

print("Hello, world!")

R

cat('Hello, world!\n')

Racket

Trivial "hello world" program:

"Hello, world!"

Running this program produces "Hello, world!". More direct version:

#lang racket
(display "Hello, world!")

A "hello world" web server using Racket's web-server/insta language:

 
#lang web-server/insta
(define (start request) (response/xexpr '(html (body "Hello, world"))))

REXX

say Hello, world!

RPL

<< "Hello, world!" MSGBOX >>

RTL/2

TITLE Hello, world!;

LET NL=10;

EXT PROC(REF ARRAY BYTE) TWRT;

ENT PROC INT RRJOB();
    TWRT("Hello, world!#NL#");
    RETURN(1);
ENDPROC;

Ruby

puts "Hello, world!"

Rust

fn main() {
  println("Hello, world!");
}

S

Scala

object HelloWorld extends App {
  println("Hello, world!")
}

Scheme

(display "Hello, world!")

Shell

echo Hello, world!

SimpleC

OUT<"Hello, world!"

Simula

Begin
   OutText ("Hello, world!");
   Outimage;
End;

Small Basic

TextWindow.WriteLine("Hello, World!")

Smalltalk

Transcript show: 'Hello, world!'.

SmileBASIC

?"Hello, world!

or

PRINT "Hello, world!"

SNOBOL

  OUTPUT = 'Hello, world!'
END

Speakeasy

As an interactive statement :

"Hello, world!"

As a program :

program hello
   "Hello, world!"
end

SQL

SELECT 'Hello, world!' FROM DUMMY; -- DUMMY is a standard table in SAP HANA.
SELECT 'Hello, world!' FROM DUAL; -- DUAL is a standard table in Oracle.
SELECT 'Hello, world!' -- This will work in SQL Server.

Stata

display "Hello, world!"

Supernova

I want window and the window title is hello world.

T

Tcl

puts "Hello, world!"

TI-BASIC

Disp "HELLO, WORLD!"

or

Output(1,1,"HELLO, WORLD!")

Turing

put "Hello World!"

U

UnrealScript

Log("Hello, world!");

V

Vala

void main ()
{
    print ("Hello, world!\n");
}

VBScript

MsgBox "Hello World"

Verilog

module hello();

initial begin

	$display("Hello, world!");
        $finish;
end

endmodule

VHDL

entity hello_world is
end;

architecture hello_world of hello_world is
begin
  stimulus : PROCESS
  begin
    assert false report "Hello, world!"
    severity note;
    wait;
  end PROCESS stimulus;
end hello_world;

Visual Basic

 MsgBox "Hello, world!"

Visual Basic .NET

Module Module1
    Sub Main() 
        Console.WriteLine("Hello, world!")
    End Sub
End Module

'non-console example:
Class Form1
    Public Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load()
        MsgBox("Hello, world!")
    End Sub
End Class

X

XSLT

Main article : XSLT

<?xml version='1.0'  encoding="ISO-8859-1"?>
<xsl:stylesheet xmlns:xsl='http://www.w3.org/1999/XSL/Transform' version='1.0' >
  <xsl:output method="text"/>
  <xsl:template match="/">
    <xsl:text>Hello World
</xsl:text>
  </xsl:template>
</xsl:stylesheet>

W

Whitespace

This example shows the program with syntax highlighting. Without highlighting, it would appear to be blank space.

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External links