Computer Programming/Hello world
The following is a list of Hello, world! programs.
Hello, world! programs make the text "Hello, world!" appear on a computer screen. It is usually the first program encountered when learning a programming language. Otherwise, it's a basic sanity check for an installation of a new programming language. If "Hello World" won't run, one must not try and develop complex programs before fixing the issues with the installation.
0815
<:48:x<:65:=<:6C:$=$=$$~<:03:+$<:2c:~$~<:c:x-$<:77: ~$~<:8:x-$~<:03:+$~<:06:x-$x<:0e:x-$=x<:43:x-$
4DOS batch
It should be noted that the 4DOS/4NT batch language is a superset of the MS-DOS batch language.
@echo Hello, world!
ABAP OBJECTS (NETWEAVER 7) - SAP AG
The example below makes use of the singleton pattern and outputs the text in a message box instead of a classic list output.
REPORT ZHELLO.
CLASS lcl_hello DEFINITION CREATE PRIVATE FINAL.
PUBLIC SECTION.
CLASS-DATA self TYPE REF TO lcl_hello READ-ONLY.
CLASS-METHODS class_constructor.
METHODS say_hello.
PRIVATE SECTION.
CONSTANTS con_hello_world TYPE c LENGTH 13 VALUE 'Hello, World!'.
ENDCLASS.
CLASS lcl_hello IMPLEMENTATION.
METHOD class_constructor.
CREATE OBJECT lcl_hello=>self.
ENDMETHOD.
METHOD say_hello.
MESSAGE con_hello_world TYPE 'I'.
ENDMETHOD.
ENDCLASS.
START-OF-SELECTION.
lcl_hello=>self->say_hello( ).
ActionScript
ActionScript 1.0 and 2.0
This will output to the output window only, which an end user would not see.
trace("Hello, world!");
This version will be visible to the end user.
var helloWorld:TextField = this.createTextField( "helloWorld", this.getNextHighestDepth(), 1, 1, 100, 20 ); helloWorld.text = "Hello, world!";
ActionScript 3
package { public class HelloWorld { public function HelloWorld() { trace("Hello, world!"); } } }
Ada
with Ada.Text_IO; procedure Hello is begin Ada.Text_IO.Put_Line ("Hello, world!"); end Hello;
ALGOL 68
The ALGOL 68 standard requires that reserved-words, types and operators are in a different typeface. Hence programs are typically published in either bold or an underline typeface, e.g.:
begin
printf($"Hello, world!"l$)
end
In the popular upper-case stropping convention for bold words:
BEGIN
printf($"Hello, world!"l$)
END
or using a wikitext like quote stropping, this is especially suitable on computers with only 6 bits per character (hence only have UPPERCASE):
'BEGIN'
PRINTF($"HELLO, WORLD!"L$)
'END'
or minimally using the "brief symbol" form of begin and end.
( printf($"Hello, world!"l$) )
AMX NetLinx
This program sends the message out via the Diagnostics Interface after start-up.
program_name = 'Hello' define_start send_string 0,'Hello World!'
ANSI C
#include <stdio.h> int main(void) { printf("Hello, World!\n"); return 0; }
ANT
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE project> <project> <target name="helloworld"> <echo message="Hello, World!" /> </target> </project>
APL
![\left [ 1 \right ] \mathrm {R}\leftarrow \mathrm {'HELLO} \; \mathrm {WORLD!'}](//upload.wikimedia.org/math/1/6/e/16e420dfdd09b8388172eaa2851ad16a.png)
![\left [ 1 \right ] \mathrm {R}\leftarrow \mathrm {'HELLO} \; \mathrm {WORLD!'}](http://upload.wikimedia.org/math/1/6/e/16e420dfdd09b8388172eaa2851ad16a.png)
- The Del on the first line begins function definition for the program named HWΔPGM. It is a niladic function (no parameters, as opposed to monadic or dyadic) and it will return an explicit result which allows other functions or APL primitives to use the returned value as input.
- The line labeled 1 assigns the text vector 'Hello, world!!' to the variable R
- The last line is another Del which ends the function definition.
When the function is executed by typing its name the APL interpreter assigns the text vector to the variable R, but since we have not used this value in another function, primitive, or assignment statement the interpreter returns it to the terminal, thus displaying the words on the next line below the function invocation.
The session would look like this
HWΔPGM
Hello, world!!
While not a program, if you simply supplied the text vector to the interpreter but did not assign it to a variable it would return it to the terminal as output. Note that user input is automatically indented 6 spaces by the interpreter while results are displayed at the beginning of a new line.
'Hello, world!'
Hello, world!!
ASP
<% Response.Write("Hello, world!") %>
- or simply:
<%= "Hello, world!" %>
ASP.NET
// in the page behind using C# protected void Page_Load(object sender, EventArgs e) { Response.Write("Hello, world!"); }
' in the page behind using VB.NET Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Response.Write("Hello, world!") End Sub
// ASPX Page Template <asp:Literal ID="Literal1" runat="server" Text="Hello World!"></asp:Literal>
or
<asp:Label ID="Label1" runat="server" Text="Hello World"></asp:Label>
or
Hello World!
Assembly language
Accumulator-only architecture: DEC PDP-8, PAL-III assembler
See the example program in the Wikipedia PDP-8 article.
First successful uP/OS combinations: Intel 8080/Zilog Z80, CP/M, RMAC assembler
bdos equ 0005H ; BDOS entry point
start: mvi c,9 ; BDOS function: output string
lxi d,msg$ ; address of msg
call bdos
ret ; return to CCP
msg$: db 'Hello, world!$'
end start
Popular home computer: ZX Spectrum, Zilog Z80, HiSoft GENS assembler
10 ORG #8000 ; Start address of the routine 20 START LD A,2 ; set the output channel 30 CALL #1601 ; to channel 2 (main part of TV display) 40 LD HL,MSG ; Set HL register pair to address of the message 50 LOOP LD A,(HL) ; De-reference HL and store in A 60 CP 0 ; Null terminator? 70 RET Z ; If so, return 80 RST #10 ; Print the character in A 90 INC HL ; HL points at the next char to be printed 100 JR LOOP 110 MSG DEFM "Hello, world!" 120 DEFB 13 ; carriage return 130 DEFB 0 ; null terminator
Accumulator + index register machine: MOS Technology 6502, CBM KERNEL, MOS assembler syntax
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
Accumulator/Index microcoded machine: Data General Nova, RDOS
See the example section of the Nova article.
Expanded accumulator machine: Intel x86, DOS, TASM
MODEL SMALL IDEAL STACK 100H DATASEG MSG DB 'Hello, world!', 13, '$' CODESEG Start: MOV AX, @data MOV DS, AX MOV DX, OFFSET MSG MOV AH, 09H ; DOS: output ASCII$ string INT 21H MOV AX, 4C00H INT 21H END Start
ASSEMBLER x86 (DOS, MASM)
.MODEL Small .STACK 100h .DATA db msg 'Hello, world!$' .CODE start: mov ah, 09h lea dx, msg ; or mov dx, offset msg int 21h mov ax,4C00h int 21h end start
ASSEMBLER x86 (DOS, FASM)
; FASM example of writing 16-bit DOS .COM program ; Compile: "FASM HELLO.ASM HELLO.COM" org $100 use16 mov ah,9 mov dx,xhello int $21 ; DOS call: text output mov ah,$4C int $21 ; Return to DOS xhello db 'Hello world !!!$'
Expanded accumulator machine: Intel x86, Microsoft Windows, FASM
Example of making 32-bit PE program as raw code and data:
format PE GUI entry start section '.code' code readable executable start: push 0 push _caption push _message push 0 call [MessageBox] push 0 call [ExitProcess] section '.data' data readable writeable _caption db 'Win32 assembly program',0 _message db 'Hello, world!',0 section '.idata' import data readable writeable dd 0,0,0,RVA kernel_name,RVA kernel_table dd 0,0,0,RVA user_name,RVA user_table dd 0,0,0,0,0 kernel_table: ExitProcess dd RVA _ExitProcess dd 0 user_table: MessageBox dd RVA _MessageBoxA dd 0 kernel_name db 'KERNEL32.DLL',0 user_name db 'USER32.DLL',0 _ExitProcess dw 0 db 'ExitProcess',0 _MessageBoxA dw 0 db 'MessageBoxA',0 section '.reloc' fixups data readable discardable
Using FASM import macro, unicode (MessageBoxW is one of few unicode functions 'supported' by Windows 9x/ME) and section sharing, no relocation (not needed for executables), no heap - Not a beginners example but only 1024 instead of 3072 bytes:
include 'd:\dev\software\common\fasmw\win32a.inc' format PE GUI 4.0 heap 0 entry start section '.text' code import readable executable data library kernel, 'KERNEL32.DLL',\ user,'USER32.DLL' import kernel,\ ExitProcess, 'ExitProcess' import user,\ MessageBoxW, 'MessageBoxW' start: xor ebx, ebx push ebx push ebx push _message push ebx call [MessageBoxW] push ebx call [ExitProcess] _message du 'Hello, world!' ,0
Expanded accumulator machine: Intel x86, Linux, FASM
format ELF executable entry _start _start: mov eax, 4 mov ebx, 1 mov ecx, msg mov edx, msg_len int 80h mov ebx, 0 mov eax, 1 int 80h msg db 'Hello, world!', 0xA msg_len = $-msg
Expanded accumulator machine:Intel x86, Linux, GAS
.data msg: .ascii "Hello, world!\n" len = . - msg .text .global _start _start: movl $len,%edx movl $msg,%ecx movl $1,%ebx movl $4,%eax int $0x80 movl $0,%ebx movl $1,%eax int $0x80
Expanded accumulator machine: Intel x86, Linux, NASM
section .data
msg db 'Hello, world!',0xA
len equ $-msg
section .text
global _start
_start:
mov edx,len
mov ecx,msg
mov ebx,1
mov eax,4
int 0x80
mov ebx,0
mov eax,1
int 0x80
Expanded accumulator machine: Intel x86, Linux, GLibC, NASM
extern printf ; Request symbol "printf". global main ; Declare symbol "main". section .data str: DB "Hello World!", 0x0A, 0x00 section .text main: PUSH str ; Push string pointer onto stack. CALL printf ; Call printf. POP eax ; Remove value from stack. MOV eax,0x0 ; \_Return value 0. RET ; /
General-purpose fictional computer: MIX, MIXAL
TERM EQU 19 console device no. (19 = typewriter)
ORIG 1000 start address
START OUT MSG(TERM) output data at address MSG
HLT halt execution
MSG ALF "HELLO"
ALF " WORL"
ALF "D "
END START end of program
General-purpose fictional computer: MMIX, MMIXAL
string BYTE "Hello, world!",#a,0 string to be printed (#a is newline and 0 terminates the string)
Main GETA $255,string get the address of the string in register 255
TRAP 0,Fputs,StdOut put the string pointed to by register 255 to file StdOut
TRAP 0,Halt,0 end process
General-purpose-register CISC: DEC PDP-11
RT-11, MACRO-11
.MCALL .REGDEF,.TTYOUT,.EXIT
.REGDEF
HELLO: MOV #MSG,R1
MOVB (R1)+,R0
LOOP: .TTYOUT
MOVB (R1)+,R0
BNE LOOP
.EXIT
MSG: .ASCIZ /Hello, world!/
.END HELLO
Variant for Elektronika BK using BIOS function, MICRO-11
MOV #TXT,R1 ;Moving string address to R1
CLR R2 ;String length=0, means null will be the termination character
EMT 20 ;Print the string
HALT
TXT: .ASCIZ /Hello, world!/
.END
CISC Amiga (Workbench 2.0): Motorola 68000
include lvo/exec_lib.i
include lvo/dos_lib.i
; open DOS library
movea.l 4.w,a6
lea dosname(pc),a1
moveq #36,d0
jsr _LVOOpenLibrary(a6)
movea.l d0,a6
; actual print string
lea hellostr(pc),a0
move.l a0,d1
jsr _LVOPutStr(a6)
; close DOS library
movea.l a6,a1
movea.l 4.w,a6
jsr _LVOCloseLibrary(a6)
rts
dosname dc.b 'dos.library',0
hellostr dc.b 'Hello, world!',0
CISC Atari: Motorola 68000
;print move.l #Hello,-(A7) move.w #9,-(A7) trap #1 addq.l #6,A7 ;wait for key move.w #1,-(A7) trap #1 addq.l #2,A7 ;exit clr.w -(A7) trap #1 Hello dc.b 'Hello, world!',0
CISC Sharp X68000 (Human68K): Motorola 68000
pea (strign) ; push string address onto stack
dc.w $FF09 ; call DOS "print" by triggering an exception
addq.l #4,a7 ; restore the stack pointer
dc.w $FF00 ; call DOS "exit"
strign:
dc.b "Hello, world!",13,10,0
CISC on advanced multiprocessing OS: DEC VAX, VMS, MACRO-32
.title hello
.psect data, wrt, noexe
chan: .blkw 1
iosb: .blkq 1
term: .ascid "SYS$OUTPUT"
msg: .ascii "Hello, world!"
len = . - msg
.psect code, nowrt, exe
.entry hello, ^m<>
; Establish a channel for terminal I/O
$assign_s devnam=term, -
chan=chan
blbc r0, end
; Queue the I/O request
$qiow_s chan=chan, -
func=#io$_writevblk, -
iosb=iosb, -
p1=msg, -
p2=#len
; Check the status and the IOSB status
blbc r0, end
movzwl iosb, r0
; Return to operating system
end: ret
.end hello
Mainframe: IBM z/Architecture series using BAL
HELLO CSECT The name of this program is 'HELLO'
USING *,12 Tell assembler what register we are using
SAVE (14,12) Save registers
LR 12,15 Use Register 12 for this program
WTO 'Hello, world!' Write To Operator
RETURN (14,12) Return to calling party
END HELLO This is the end of the program
RISC processor: ARM, RISC OS, BBC BASIC's in-line assembler
.program
ADR R0, message
SWI "OS_Write0"
SWI "OS_Exit"
.message
DCS "Hello, world!"
DCB 0
ALIGN
or the even smaller version (from qUE);
SWI "OS_WriteS":EQUS "Hello, world!":EQUB0:ALIGN:MOV PC,R14
RISC processor: MIPS architecture
.data
msg: .asciiz "Hello, world!"
.align 2
.text
.globl main
main:
la $a0,msg
li $v0,4
syscall
jr $ra
RISC processor: PowerPC, Mac OS X, GAS
.data
msg:
.ascii "Hello, world!\n"
len = . - msg
.text
.globl _main
_main:
li r0, 4 ; write
li r3, 1 ; stdout
addis r4, 0, ha16(msg) ; high 16 bits of address
addi r4, r4, lo16(msg) ; low 16 bits of address
li r5, len ; length
sc
li r0, 1 ; exit
li r3, 0 ; exit status
sc
Sigma 6/7/8/9 METASYMBOL
SYSTEM BPM
START M:PRINT (MESS,HW)
M:EXIT
HW TEXTC 'HELLO WORLD'
END START
B
This is the first known Hello, world! program ever written:[1]
main( ) {
extrn a, b, c;
putchar(a); putchar(b); putchar(c); putchar('!*n');
}
a 'hell';
b 'o, w';
c 'orld';
Baan Tools
Also known as Triton Tools on older versions. On Baan ERP you can create a program on 3GL or 4GL mode.
3GL Format
function main()
{
message("Hello, world!")
}
4GL Format
choice.cont.process:
on.choice:
message("Hello, world!")
On this last case you should press the Continue button to show the message.
Bash or sh
echo 'Hello, world!'
or
printf 'Hello, world!\n'
or using the C preprocessor
#!/bin/bash #define cpp # cpp $0 2> /dev/null | /bin/bash; exit $? #undef cpp #define HELLO_WORLD echo "hello, world" HELLO_WORLD | tr a-z A-Z
BASIC
General
The following example works for any ANSI/ISO-compliant BASIC implementation, as well as most implementations built into or distributed with microcomputers in the 1970s and 1980s (usually some variant of Microsoft BASIC):
10 PRINT "Hello, world!" 20 END
Note that the "END" statement is optional in many implementations of BASIC.
Some implementations could also execute instructions in an immediate mode when line numbers are omitted. The following examples work without requiring a RUN instruction.
PRINT "Hello, world!"
? "Hello, world!"
Later implementations of BASIC allowed greater support for structured programming and did not require line numbers for source code. The following example works when RUN for the vast majority of modern BASICs.
PRINT "Hello, world!" END
Again, the "END" statement is optional in many BASICs.
BlitzBasic
Print "Hello, world!" WaitKey
DarkBASIC
PRINT "Hello, world!"
or
TEXT 0,0,"Hello, world!" WAIT KEY
Note: In the "classic" Dark Basic the WAIT KEY command is optional as the console goes up when the program has finished.
FreeBasic
PRINT "Hello World" SLEEP END
or
PRINT "Hello World"
or
? "Hello World"
or
'without a newline ? "Hello World";
GW-BASIC
10 PRINT "Hello, World!" 20 END
Liberty BASIC
To write to the main window:
PRINT "Hello, world"
Or drawn in a graphics window:
nomainwin OPEN "Hello, world!" FOR graphics AS #main PRINT #main, "place 50 50" PRINT #main, "\Hello, world!" PRINT #main, "flush" WAIT
Microsoft Small Basic
TextWindow.WriteLine("Hello, world!")
PBASIC
DEBUG "Hello, world!", CR
or, the typical microcontroller Hello, world! program equivalent with the only output device present being a light-emitting diode (LED) (in this case attached to the seventh output pin):
DO HIGH 7 'Make the 7th pin go high (turn the LED on) PAUSE 500 'Sleep for half a second LOW 7 ' Make the 7th pin go low (turn the LED off) PAUSE 500 'Sleep for half a second LOOP END
StarOffice/OpenOffice Basic
SUB main PRINT "Hello, world!" END SUB
PureBasic
OpenConsole() PrintN("Hello, world!") INPUT()
or
MessageRequester("Hello, World","Hello, World")
or
Debug "Hello, World"
TI-BASIC
On TI calculators of the TI-80 through TI-86 range:
:Disp "Hello, world! (note the optional ending quotes) :Output(X,Y,"Hello, world! (note the optional ending parenthesis) :Text(X,Y,"Hello, world! (writes to the graph rather than home screen) :Text(-1,X,Y,"Hello, world! (only on the 83+ and higher, provides larger text, home screen size) :"Hello, world! (last line of program only)
Note: "!" character is not on the keypad. It can be accessed from "Catalog" menu, "Probability" menu, or "Math" menu (as factorial notation).
On TI-89/TI-89 Titanium/TI-92(+)/Voyage 200 calculators:
:hellowld() :Prgm :Disp "Hello, world!" :EndPrgm
Visual Basic
Private Sub Form_Load() MsgBox "Hello, world" End Sub
Alternatively, copy this into a New Form:
Private Sub Form_Click() Form1.Hide Dim HelloWorld As New Form1 HelloWorld.Width = 2500: HelloWorld.Height = 1000: HelloWorld.Caption = "Hello, world!": HelloWorld.CurrentX = 500: HelloWorld.CurrentY = 75 HelloWorld.Show: HelloWorld.Font = "Tahoma": HelloWorld.FontBold = True: HelloWorld.FontSize = 12: HelloWorld.Print "Hello, world!" End Sub
Visual Basic .NET
Module HelloWorldApp Sub Main() System.Console.WriteLine("Hello, world!") End Sub End Module
PICK/BASIC, DATA/BASIC, MV/BASIC
In addition to the ANSI syntax at the head of this article, most Pick operating system flavors of Dartmouth BASIC support extended syntax allowing cursor placement and other terminfo type functions for VDT's
X, Y positioning (colon ":" is the concatenation instruction):
PRINT @(34,12) : "Hello, world!"
Will display the string "Hello, world!" roughly centered in a 80X24 CRT.
Other functions:
PRINT @(-1) : @(34,12) : "Hello, world!"
Will clear the screen before displaying the string "Hello, world!" roughly centered in a 80X24 CRT.
Syntax variants:
CRT "Hello, world!"
Supporting the "@" functions above, the CRT statement ignores previous PRINTER statements and always sends output to the screen.
Some Pick operating system environments such as OpenQM support the DISPLAY variant of PRINT. This variant in addition to the "@" functions maintains pagination based upon the settings of the TERM variable:
DISPLAY "Hello, world!"
Batch (MS-DOS)
@echo Hello World!
or
@echo off set hellostring=Hello World! echo %hellostring%
or
@echo off echo Hello World! pause exit
BLISS
%TITLE 'HELLO_WORLD'
MODULE HELLO_WORLD (IDENT='V1.0', MAIN=HELLO_WORLD,
ADDRESSING_MODE (EXTERNAL=GENERAL)) =
BEGIN
LIBRARY 'SYS$LIBRARY:STARLET';
EXTERNAL ROUTINE
LIB$PUT_OUTPUT;
GLOBAL ROUTINE HELLO_WORLD =
BEGIN
LIB$PUT_OUTPUT(%ASCID %STRING('Hello, world!'))
END;
END
ELUDOM
BlitzMax
SuperStrict
Graphics 640, 480, 0, 60
Local running:Int = 1
While running
Cls
DrawText "Hello World!", 1, 1
Flip
If GetChar()
running = 0
EndIf
Wend
End
brainfuck
+++++ +++++ initialize counter (cell #0) to 10 [ use loop to set the next four cells to 70/100/30/10 > +++++ ++ add 7 to cell #1 > +++++ +++++ add 10 to cell #2 > +++ add 3 to cell #3 > + add 1 to cell #4 <<<< - decrement counter (cell #0) ] > ++ . print 'H' > + . print 'e' +++++ ++ . print 'l' . print 'l' +++ . print 'o' > ++ . print ' ' << +++++ +++++ +++++ . print 'W' > . print 'o' +++ . print 'r' ----- - . print 'l' ----- --- . print 'd' > + . print '!' > . print '\n'
Caché Server Pages (CSP)
Class Test.Hello Extends %CSP.Page [ ProcedureBlock ]
{
ClassMethod OnPage() As %Status
{
&html<<html>
<head>
</head>
<body>>
Write "Hello, world!",!
&html<</body>
</html>>
Quit $$$OK
}
}
Calprola
This program will work on the Avasmath 80 online programmable calculator.
#BTN A1 #PRI "HELLO WORLD!" #END
OBJECT Codeunit 50000 HelloWorld
{
PROPERTIES
{
OnRun=BEGIN
MESSAGE(Txt001);
END;
}
CODE
{
VAR
Txt001@1000000000 : TextConst 'ENU=Hello, world!';
BEGIN
{
Hello, world! in C/AL (Microsoft Business Solutions-Navision)
}
END.
}
}
Casio FX-9750
This program will work on the fx-9750 graphing calculator and compatibles.
"Hello, world!"↵
or
Locate 1,1,"Hello, world!"↵
Ch
The above C code can run in Ch as examples. The simple one in Ch is:
printf("Hello, world!\n");
Chrome
namespace HelloWorld; interface type HelloClass = class public class method Main; end; implementation class method HelloClass.Main; begin System.Console.WriteLine('Hello, world!'); end; end.
CIL
.assembly Hello {} .assembly extern mscorlib {} .method static void Main() { .entrypoint .maxstack 1 ldstr "Hello, world!" call void [mscorlib]System.Console::WriteLine(string) ret }
CintieFramework (VisualBasic.NET)
<Script> <References> <Reference>System.dll</Reference> </References> <Code Language="VisualBasic"> <![CDATA[ Public Class Plugin Public Function MainF(ByVal Ob As Object) As String 'Script Code Return "Hello, World!" End Function End Class ]]> </Code> </Script>
CLU
start_up = proc ()
po: stream := stream$primary_output ()
stream$putl (po, "Hello, world!")
end start_up
COBOL
IDENTIFICATION DIVISION. PROGRAM-ID. HELLO-WORLD. PROCEDURE DIVISION. DISPLAY "Hello, world!" STOP RUN.
The above is a very abbreviated and condensed version, which omits the author name and source and destination computer types.
CoffeeScript
CoffeeScript is a little language that compiles into JavaScript. And like JavaScript, it does not have native (built in) input or output routines. Instead it relies on the facilities provided by its host environment.
Using an alert, using a standard Web browser's window object (window.alert)
alert 'Hello, world!'
or, from Firebug, Apple Safari, or Google Chrome debug console, or Node.js console
console.log 'Hello, world!'
Cube
Function | Main WriteLine | "Hello, world" End | Main
The '|' refers to the separation of the two text fields in the Cube standard IDE.
C++
#include <iostream> using namespace std; int main() { cout << "Hello, World!" << endl; return 0; }
C++/CLI
int main() { System::Console::WriteLine("Hello, world!"); return 0; }
C++, Managed (.NET)
#using <mscorlib.dll> using namespace System; int wmain() { Console::WriteLine("Hello, world!"); return 0; }
C#
See also GUI section.
using System; internal static class HelloWorld { private static void Main() { Console.WriteLine("Hello, world!"); } }
Or just in one line:
class s{static void Main(){System.Console.WriteLine("Hello, world!");}}
D
import std.stdio ; void main () { writefln("Hello, world!"); }
Tango version:
import tango.io.Stdout; void main() { Stdout ("Hello, world!").newline; }
DC, an arbitrary precision calculator
[Hello, world!]p
or
1468369091346906859060166438166794P
DIV
PROGRAM hello; BEGIN write(0, 0, 0, 0, "Hello, world!"); LOOP FRAME; END END
EAScripting
set disp to "Hello, world!" set dispto to item unit 5 //5 = default screen release disp into dispto.
This would be a pure system call
import system ea.helloworld wait
Eiffel
class HELLO_WORLD create make feature make is do io.put_string("Hello, world!%N") end -- make end -- class HELLO_WORLD
Erlang
See also GUI section.
-module(hello). -export([hello/0]). hello() -> io:format("Hello, world!~n").
Factor
"Hello, world!" print
or gui version
"Hello, world!" <label> "Hi" open-window
Fjölnir
"halló" < main
{
main ->
stef(;)
stofn
skrifastreng(;"Halló, veröld!"),
stofnlok
}
*
"GRUNNUR"
;
FOCAL
type "Hello, world!",!
or
t "Hello, world!",!
Forte TOOL
begin TOOL HelloWorld;
includes Framework;
HAS PROPERTY IsLibrary = FALSE;
forward Hello;
-- START CLASS DEFINITIONS
class Hello inherits from Framework.Object
has public method Init;
has property
shared=(allow=off, override=on);
transactional=(allow=off, override=on);
monitored=(allow=off, override=on);
distributed=(allow=off, override=on);
end class;
-- END CLASS DEFINITIONS
-- START METHOD DEFINITIONS
------------------------------------------------------------
method Hello.Init
begin
super.Init();
task.Part.LogMgr.PutLine('Hello, world!');
end method;
-- END METHOD DEFINITIONS
HAS PROPERTY
CompatibilityLevel = 0;
ProjectType = APPLICATION;
Restricted = FALSE;
MultiThreaded = TRUE;
Internal = FALSE;
LibraryName = 'hellowor';
StartingMethod = (class = Hello, method = Init);
end HelloWorld;
Forth
: HELLO ( -- ) ." Hello, world!" CR ; HELLO
or instead of compiling a new routine, one can type directly in the Forth interpreter console
CR ." Hello, world!" CR
Fortran
Fortran 77
00 program hello write(*,*) 'Hello World!' stop end
Fortran 90/95
program hello write(*,*) 'Hello, World!' end program hello
GEMBase 4GL
procedure_form hello
begin_block world
print "Hello, world!"
end_block
end_form
GML (Game Maker Language)
In the draw event of some object:
draw_text(x,y,"Hello, world!")
Or to show a splash screen message:
show_message("Hello, world!")
Go (from Google)
package main
import "fmt"
func main() {
fmt.Printf("Hello, world!")
}
GraalScript
GraalScript 1
if (created) {
echo Hello, world!;
}
GraalScript 2
function onCreated() {
echo("Hello, world!");
}
Haxe
class HelloWorldApp
{
static function main()
{
trace("Hello, world!");
}
}
Heron
program HelloWorld;
functions {
_main() {
print_string("Hello, world!");
}
}
end
HP 33s
(Handheld Hewlett-Packard RPN-based scientific calculator.)
LBL H SF 10 EQN RCL H RCL E RCL L RCL L RCL O R/S RCL W RCL O RCL R RCL L RDL D ENTER R/S
HP-41 & HP-42S
(Handheld Hewlett-Packard RPN-based alphanumeric engineering calculators.)
01 LBLTHELLO 02 THello, world! 03 PROMPT
HyperTalk (Apple HyperCard's scripting programming language)
put "Hello, world!"
or
Answer "Hello, world!"
Inform
Inform 5/6
[ Main; "Hello, world!"; ];
Inform 7
Hello World is a room. The printed name is "Hello, world!"
J
'Hello, world!' NB. echoes the string in interactive mode, doesn't work in script
'Hello World!' 1!:2(2) NB. prints it to (2) - screen, (4) - stdout
Jal
include 16f877_20 include hd447804 hd44780_clear hd44780 = "H" hd44780 = "e" hd44780 = "l" hd44780 = "l" hd44780 = "o" hd44780 = " " hd44780 = "W" hd44780 = "o" hd44780 = "r" hd44780 = "l" hd44780 = "d" hd44780 = "!"
Java
See also GUI section.
public class HelloWorld { public static void main(String[] args) { System.out.println("Hello, world!"); } }
Java byte-code
(disassembler output of javap -c HelloWorld)
public class HelloWorld extends java.lang.Object{
public HelloWorld();
Code:
0: aload_0
1: invokespecial #1; //Method java/lang/Object."<init>":()V
4: return
public static void main(java.lang.String[]);
Code:
0: getstatic #2; //Field java/lang/System.out:Ljava/io/PrintStream;
3: ldc #3; //String Hello, world!
5: invokevirtual #4; //Method java/io/PrintStream.println:(Ljava/lang/String;)V
8: return
}
JavaFX Script
JavaFX Script was a scripting language formerly called F3 for Form Follows Function. It was discontinued by Oracle in 2010.
Frame {
title: "Hello World JavaFX"
width: 200
content: Label {
text: "Hello World"
}
visible: true
}
This program can also be written in this way:
var win = new Frame(); win.title = "Hello World JavaFX"; win.width = 200; var label = new Label(); label.text = "Hello World"; win.content = label; win.visible = true;
A simple console output version would be:
import java.lang.System;
System.out.println("Hello World");
Or even simpler (with a built-in function):
println("Hello World");
JavaScript
JavaScript does not have native (built in) input or output routines. Instead it relies on the facilities provided by its host environment.
Using a standard Web browser's document object
document.writeln('Hello, World!');
or with an alert, using a standard Web browser's window object (window.alert)
alert('Hello, world!');
or, from the Mozilla command line implementation
print('Hello, world!');
or, from the Windows Script Host
WScript.Echo('Hello, world!');
or, from Firebug, Apple Safari, or Google Chrome debug console
console.log('Hello, world!');
JSP
<%@ page contentType="text/html;charset=WINDOWS-1252"%>
<HTML>
<BODY>
<% out.println(" Hello, world!"); %>
</BODY>
</HTML>
or just
<% out.println("Hello, world!"); %>
or literally
Hello, world!
KPL (Kids Programming Language)
Program HelloWorld
Method Main()
ShowConsole()
ConsoleWriteLine("Hello, world!")
End Method
End Program
Lasso
Output: 'Hello, world!';
or
Output('Hello, world!');
or simply
'Hello, world!';
Lexico Mobile (in spanish)
tarea muestre "Hola mundo !"
or
clase Saludo derivada_de Form publicos mensajes Saludo copie "Hola mundo !" en saludo.Text
Linden Scripting Language
Linden Scripting Language is the scripting language used within Second Life
default
{
state_entry()
{
llSetText("Hello, World!" , <0,0,0> , 1.0);
//or...
llSay(0,"Hello, World!");
}
}
Lisaac
Section Header + name := HELLO_WORLD_PROGRAM; Section Public - main <- ( "Hello world!\n".print; );
Lisp
Lisp has many dialects that have appeared over its almost fifty-year history.
Common Lisp
(format t "Hello, world!~%")
or
(write-line "Hello, world!")
or in the REPL:
"Hello, world!"
(As a string (enclosed in quotes) it evaluates to itself, so is printed.)
Scheme
(display "Hello, world!\n")
Clojure
(println "Hello, world!")
Emacs Lisp
(print "Hello, world!")
or:
(message "Hello, world!")
AutoLisp
(print "Hello, world!")
XLISP
(print "Hello, world!")
Arc
(prn "Hello, world!")
Pils
(out "Hello, world!")
Logo
print [Hello, world!]
or
pr [Hello, world!]
In mswlogo only
messagebox [Hi] [Hello, world!]
Lua
io.write("Hello, world!\n")
or
return "Hello, World!"
or
print("Hello, world")
LuaDEV (psp and wii)
screen.print(10,10,"Hello, world!")
MATLAB
disp('Hello, world!')
or
fprintf('Hello, world!')
or with a GUI
figure('Position',[100 100 200 200],'MenuBar','none','Name','Hello World'); uicontrol('Style','text','Position',[15 100 150 15],'String','Hello world');
or
msgbox('Hello World!')
Maude
fmod HELLOWORLD is protecting STRING . op helloworld : -> String . eq helloworld = "Hello, world!" . endfm red helloworld .
Max
max v2; #N vpatcher 10 59 610 459; #P message 33 93 63 196617 Hello, world!!; #P newex 33 73 45 196617 loadbang; #P newex 33 111 31 196617 print; #P connect 1 0 2 0; #P connect 2 0 0 0; #P pop;
Mesham
var x:String::allocated[on[0]];
x:="Hello World"; // allocated on process 0 only
proc 1 {
// This is displayed by process 1, auto communication done to achieve this
print[x];
}
mIRC Script
aliases
helloworld echo Hello, world!
remote
alias helloworld echo Hello, world!
popups
Hello World:echo Hello, world!
command line
echo Hello, world!
or
echo Hello, world!
Modula-2
MODULE Hello;
FROM InOut IMPORT WriteLn, WriteString;
BEGIN
WriteString ("Hello, world!");
WriteLn
END Hello.
MOO
This requires that you be the player or a wizard:
notify(player, "Hello, world!");
This is specific to the implementation of the core used for the moo, but works on most well known moos, such as LambdaCore or JH-Core:
player:tell("Hello, world!");
MPI
#include <stdio.h>
#include <time.h>
#include <string.h>
#include "mpi.h"
int main ( int argc, char * argv[] )
{
const int maximum_message_length = 100;
const int master_rank = 0;
char message[maximum_message_length+1];
MPI_Status status; /* Info about receive status */
int my_rank; /* This process ID */
int num_procs; /* Number of processes in run */
int source; /* Process ID to receive from */
int destination; /* Process ID to send to */
int tag = 0; /* Message ID */
int mpi_error; /* Error code for MPI calls */
int icount;
char processor_name[MPI_MAX_PROCESSOR_NAME];
int name_length;
// Initialize the MPI execution environment.
mpi_error = MPI_Init ( &argc, &argv );
if ( mpi_error != MPI_SUCCESS )
{
fprintf ( stderr, "Error: %s: Unable to initialize MPI execution environment\nAborting ...\n", argv[0] );
return ( 1 );
}
// Even though we capture the error value from the MPI calls, we will
// not deal with any error except the last one.
mpi_error = MPI_Comm_rank ( MPI_COMM_WORLD, &my_rank );
mpi_error = MPI_Comm_size ( MPI_COMM_WORLD, &num_procs );
if ( my_rank != master_rank )
{
mpi_error = MPI_Get_processor_name (processor_name, &name_length );
sprintf ( message, "Greetings from process #%d running on %s\n", \
my_rank, processor_name );
destination = master_rank;
mpi_error = MPI_Send ( message, strlen(message) + 1, MPI_CHAR, \
destination, tag, MPI_COMM_WORLD );
}
else
{
for ( source = 0; source < num_procs; source++ )
{
if ( source != master_rank )
{
mpi_error = MPI_Recv ( message, maximum_message_length + 1, \
MPI_CHAR, source, tag, MPI_COMM_WORLD, &status );
printf ( "%s \n", message );
}
}
}
mpi_error = MPI_Finalize();
if ( MPI_SUCCESS != mpi_error )
return ( mpi_error );
else
return ( 0 );
}
M# Fictional Computer Language
Script
main(std:string >>arg<< / OS.GetArg)
{
std:stream >>CONSOLE<< / OS.Console;
CONSOLE:Write([byte]{0048, 0065, 006C, 006C, 006F, 002C, 0058, 006F, 0072, 006C, 0064});
// H e l l o , W o r l d //
}
Command WI
# # DEFINE g >>CONSOLE<< / OS.Console
# % proc CONSOLE:Write([byte]{0048, 0065, 006C, 006C, 006F, 002C, 0058, 006F, 0072, 006C, 0064})
Command WoI
# @ Write([byte]{0048, 0065, 006C, 006C, 006F, 002C, 0058, 006F, 0072, 006C, 0064})
MS-DOS batch
(with the standard command.com interpreter. The @ symbol is optional and prevents the system from repeating the command before executing it. The @ symbol must be omitted on versions of MS-DOS prior to 3.0.). It's very common for batchfiles to start with two lines of "@echo off" and "cls".
@echo Hello, world!
For MS-DOS 3.0 or lower
echo off cls echo Hello, world!
Nemerle
The easiest way to get Nemerle print "Hello, world!" would be that:
System.Console.WriteLine("Hello, world!");
however, in bigger applications the following code would be probably more useful:
using System.Console;
module HelloWorld
{
Main():void
{
WriteLine("Hello, world!");
}
}
Oberon
Oberon is both the name of a programming language and an operating system.
Program written for the Oberon operating system:
MODULE Hello;
IMPORT Oberon, Texts;
VAR W: Texts.Writer;
PROCEDURE World*;
BEGIN
Texts.WriteString(W, "Hello, world!");
Texts.WriteLn(W);
Texts.Append(Oberon.Log, W.buf)
END World;
BEGIN
Texts.OpenWriter(W)
END Hello.
Freestanding Oberon program using the standard Oakwood library:
MODULE Hello;
IMPORT Out;
BEGIN
Out.String("Hello, world!");
Out.Ln
END Hello.
Objective C
Procedural C Version
#import <stdio.h> int main (int argc, const char *argv[]) { printf ("Hello, world!\n"); return 0; }
Object-Oriented C Version
#import <stdio.h> #import <objc/Object.h> @interface Hello : Object { } - hello; @end @implementation Hello - hello { printf("Hello, world!\n"); } @end int main(void) { id obj; obj = [Hello new]; [obj hello]; [obj free]; return 0; }
OPENSTEP/Cocoa Version
#import <Foundation/Foundation.h> int main (int argc, const char * argv[]) { NSLog(@"Hello, world!"); return 0; }
occam
#USE "course.lib"
PROC hello.world(CHAN OF BYTE screen!)
out.string("Hello, world!*n", 0, screen!)
:
or without using course.lib
PROC hello.world(CHAN OF BYTE screen!)
SEQ
screen ! 'H'
screen ! 'e'
screen ! 'l'
screen ! 'l'
screen ! 'o'
screen ! ','
screen ! ' '
screen ! 'w'
screen ! 'o'
screen ! 'r'
screen ! 'l'
screen ! 'd'
screen ! '!'
screen ! '*n'
:
OPS5
(object-class request
^action)
(startup
(strategy MEA)
(make request ^action hello)
)
(rule hello
(request ^action hello)
(write |Hello, world!| (crlf))
)
OPS83
module hello (main)
{ procedure main( )
{
write() |Hello, world!|, '\n';
};
};
Parrot intermediate representation
.sub hello :main print "Hello, world!!\n" .end
PAWN
main() {
print("Hello, World!");
}
or
main() {
new string[14];
format string(sizeof(string), "Hello, World!);
print(string);
}
Perl
As PL file
print "Hello, world!\n";
(the semicolon is optional)
or
package Hello; sub new() { bless {} } sub Hello() { print "Hello, world! \n" } package main; my $hello = new Hello; $hello->Hello();
As CGI file
#!/usr/local/bin/perl print "Content-type: text/html\n\n"; print "<H1>Hello World!</H1>";
PHP
<?php echo 'Hello, world!'; ?>
or use short-hand echoing, syntaxed as such:
<? echo "Hello, world!"?>
PL/SQL
SET serveroutput ON size 1000000; -- this is a SQL*Plus command to enable the output buffer BEGIN DBMS_OUTPUT.put_line('Hello, world!'); END;
Pure Data
#N canvas 0 0 300 300 10; #X obj 100 100 loadbang; #X msg 100 150 Hello, world!; #X obj 100 200 print; #X connect 0 0 1 0; #X connect 1 0 2 0;
Python
'Hello, World!' (with quotation marks) can be attained through:
'Hello, world!'
Two easter eggs (Python 2.0):
import __hello__ import __phello__
Prior to Python 3.0:
print "Hello, world!"
Python 3.0 or later:
print("Hello, world!")
or any Python version
import sys sys.stdout.write("Hello, world!\n")
Redcode
; Should work with any MARS >= ICWS-86
; with 128x64 gfx core
Start MOV 0,2455
MOV 0,2458
MOV 0,2459
MOV 0,2459
MOV 0,2459
MOV 0,2459
MOV 0,2459
MOV 0,2460
MOV 0,2465
MOV 0,2471
MOV 0,2471
MOV 0,2471
MOV 0,2479
MOV 0,2482
MOV 0,2484
MOV 0,2484
MOV 0,2484
MOV 0,2486
MOV 0,2486
MOV 0,2486
MOV 0,2486
MOV 0,2488
MOV 0,2493
MOV 0,2493
MOV 0,2493
MOV 0,2493
MOV 0,2497
MOV 0,2556
MOV 0,2559
MOV 0,2560
MOV 0,2565
MOV 0,2570
MOV 0,2575
MOV 0,2578
MOV 0,2585
MOV 0,2588
MOV 0,2589
MOV 0,2592
MOV 0,2593
MOV 0,2596
MOV 0,2597
MOV 0,2603
MOV 0,2605
MOV 0,2608
MOV 0,2667
MOV 0,2670
MOV 0,2671
MOV 0,2676
MOV 0,2681
MOV 0,2686
MOV 0,2689
MOV 0,2696
MOV 0,2699
MOV 0,2700
MOV 0,2703
MOV 0,2704
MOV 0,2707
MOV 0,2708
MOV 0,2714
MOV 0,2716
MOV 0,2719
MOV 0,2778
MOV 0,2778
MOV 0,2778
MOV 0,2778
MOV 0,2778
MOV 0,2779
MOV 0,2779
MOV 0,2779
MOV 0,2782
MOV 0,2787
MOV 0,2792
MOV 0,2795
MOV 0,2802
MOV 0,2805
MOV 0,2806
MOV 0,2809
MOV 0,2810
MOV 0,2810
MOV 0,2810
MOV 0,2810
MOV 0,2812
MOV 0,2818
MOV 0,2820
MOV 0,2823
MOV 0,2882
MOV 0,2885
MOV 0,2886
MOV 0,2891
MOV 0,2896
MOV 0,2901
MOV 0,2904
MOV 0,2911
MOV 0,2912
MOV 0,2913
MOV 0,2914
MOV 0,2917
MOV 0,2918
MOV 0,2919
MOV 0,2922
MOV 0,2928
MOV 0,2930
MOV 0,2933
MOV 0,2992
MOV 0,2995
MOV 0,2996
MOV 0,3001
MOV 0,3006
MOV 0,3011
MOV 0,3014
MOV 0,3021
MOV 0,3022
MOV 0,3023
MOV 0,3024
MOV 0,3027
MOV 0,3028
MOV 0,3030
MOV 0,3032
MOV 0,3038
MOV 0,3040
MOV 0,3103
MOV 0,3106
MOV 0,3107
MOV 0,3107
MOV 0,3107
MOV 0,3107
MOV 0,3107
MOV 0,3108
MOV 0,3108
MOV 0,3108
MOV 0,3108
MOV 0,3108
MOV 0,3109
MOV 0,3109
MOV 0,3109
MOV 0,3109
MOV 0,3109
MOV 0,3111
MOV 0,3111
MOV 0,3111
MOV 0,3120
MOV 0,3121
MOV 0,3124
MOV 0,3124
MOV 0,3124
MOV 0,3126
MOV 0,3129
MOV 0,3130
MOV 0,3130
MOV 0,3130
MOV 0,3130
MOV 0,3130
MOV 0,3131
MOV 0,3131
MOV 0,3131
MOV 0,3131
MOV 0,3135
JMP 0
Revolution
(This works the same for Transcript or xTalk)
Printed in the message box
put "Hello, World!"
Shown within a dialog box
answer "Hello, world!"
Printed on the main window interface
create field "myField" set the text of field "myField" to "Hello, world!"
As CGI file
#!revolution on startup put "Content-Type: text/plain" & cr & cr put "Hello World!" end startup
REXX, ARexx, NetRexx, and Object REXX
/* a starting comment is needed in mainframe versions */ say "Hello, world!"
RPG
Free-Form Syntax
/FREE
DSPLY 'Hello, world!';
*InLR = *On;
/END-FREE
Traditional Syntax
With this syntax, a constant has to be used because the message must be placed in positions 12 to 25, between apostrophes.
d TestMessage c Const( 'Hello, world!' )
c TestMessage DSPLY
c EVAL *InLR = *On
RPG Code
Message Window
Using the internal message window, a simple Hello, world! program can be rendered thus:
mwin("Hello, world!")
wait()
On Screen Text
An additional way to render text is by using the built in text() function.
text(1,1,"Hello, world!") wait()
RPL
See also GUI section.
(On Hewlett-Packard HP-28, HP-48 and HP-49 series graphing calculators.)
<< CLLCD "Hello, world!" 1 DISP 0 WAIT DROP >>
Ruby
See also GUI section.
puts 'Hello, world!'
or
'Hello, world!'.each { |s| print s }
or
class String def say puts self end end 'Hello, world!'.say
sed
(note: requires at least one line of input)
sed -ne '1s/.*/Hello, world!/p'
Seed7
$ include "seed7_05.s7i";
const proc: main is func
begin
writeln("Hello, world");
end func;
ShadowScript
'set up initial variables
struct.follow
{
cpu.fan.speed(500.rpm)
cpu.max.process(100)
}
<
logic.handle(0)
int main()
int var()
array.max(100000000)
>
'open and write the text in a free handle window
open mainwin(io<std>) as free(1)
{
write.free(1).("Hello",&sym," world",&sym)(&sym<",">&sym<"!">
apply.free(1) to text
}
'reset the fan, cpu, and vars
<
logic(std)
fan(std.auto)
cpu.max(auto)
unint main()
unint var()
un.array.max(std)
>
'end
end
.end/
Smalltalk
Transcript show: 'Hello, world!'
alternative:
StdoutStream nextPutLine: 'Hello, world'
Span
class Hello {
static public main: args {
Console << "Hello, world!\n";
}
}
SPARK
with Spark_IO; --# inherit Spark_IO; --# main_program; procedure Hello_World --# global in out Spark_IO.Outputs; --# derives Spark_IO.Outputs from Spark_IO.Outputs; is begin Spark_IO.Put_Line (Spark_IO.Standard_Output, "Hello, world!", 0); end Hello_World;
Spin
Spin is the high level language from Parallax Inc. used to program their Propeller multi-core micro-controllers.
The program assumes that the software UART object, provided with the Propeller IDE, is used to deliver the message over a serial line.
CON
_clkmode = xtal1 + pll16x
_xinfreq = 5_000_000
OBJ
console : "FullDuplexSerial"
PUB start
console.start(31, 30, 0, 115_200)
console.str(string("Hello, world!", 13))
SQL
CREATE TABLE message (text CHAR(15)); INSERT INTO message (text) VALUES ('Hello, world!'); SELECT text FROM message; DROP TABLE message;
or (for EnterpriseDB's Stored Procedure Language (SPL))
BEGIN DBMS_OUTPUT.PUT_LINE('Hello, world!'); END;
or (e.g. Oracle dialect)
SELECT 'Hello, world!' FROM dual;
or (for Oracle's PL/SQL proprietary procedural language)
BEGIN DBMS_OUTPUT.ENABLE(1000000); DBMS_OUTPUT.PUT_LINE('Hello, world!'); END;
or (e.g. MySQL or PostgreSQL dialect)
SELECT 'Hello, world!';
or (for PostgreSQL's PL/pgSQL Procedural language)
CREATE FUNCTION hello_world() RETURNS text AS $$ BEGIN RETURN 'Hello, world!'; END $$ LANGUAGE plpgsql;
or (e.g. T-SQL dialect)
PRINT 'Hello, world!'
or (for KB-SQL dialect)
SELECT NULL FROM DATA_DICTIONARY.SQL_QUERY FOOTER ''OR HEADER OR DETAIL OR FINAL event'' WRITE "Hello, world!"
Stata
Define program in script (.do-file) or at command line:
capture program drop hello /*Define Hello, world! program*/
program define hello
di "Hello, world!"
end
hello /*run Hello, world! program*/
Or, interactively at the command line:
di "Hello, world!"
SuperCollider
"Hello, world!".postln;
or, for interactive prompt,
"Hello, world!"
TOM (rewriting language)
public class HelloWorld {
%include { string.tom }
public final static void main(String[] args) {
String who = "world";
%match(String who) {
"World" -> { System.out.println("Hello, " + who + "!"); }
_ -> { System.out.println("Don't panic"); }
}
}
TSQL
Declare @Output varchar(16) Set @Output='Hello, world!' Select 'Output' = @Output
or, simpler variations:
Select 'Hello, world!' Print 'Hello, world!'
UNIX-style shell
echo 'Hello, world!'
or using an inline 'here document'
cat <<'DELIM' Hello, world! DELIM
or
printf '%s' $'Hello, world!\n'
or for a curses interface:
dialog --msgbox 'Hello, world!' 0 0
Vala
using GLib; public int main(string[] args) { stdout.printf("Hello, world!\n"); return 0; }
Verilog
module main();
initial begin
#0 $display("Hello, world!!");
#1 $finish;
end
endmodule
or (a little more complicated)
module hello(clk);
input clk;
always @(posedge clk) $display("Hello, world!!");
endmodule
module main();
reg clk;
hello H1(clk);
initial begin
#0 clk=0;
#5 clk=1;
#1 $finish;
end
endmodule
module hello(clk);
input clk;
always @(posedge clk) $display("Hello, world!!");
endmodule
module main();
reg clk;
hello H1(clk);
initial begin
#0 clk=0;
#23 $display("--23--");
#100 $finish;
end
always #5 clk=~clk;
endmodule
VHDL
use std.textio.all;
entity Hello is
end Hello;
architecture Hello_Arch of Hello is
begin
p : process
variable l:line;
begin
write(l, String'("Hello, world!"));
writeline(output, l);
wait;
end process;
end Hello_Arch;
Visual Prolog
#include @"pfc\console\console.ph"
goal
console::init(),
stdio::write("Hello, world!").
Windows PowerShell
"Hello, world!"
or
Write-Host "Hello, world!"
or
echo "Hello, world!"
or
[System.Console]::WriteLine("Hello, world!")
or
[void][System.Reflection.Assembly]::LoadWithPartialName('System.Windows.Forms') [System.Windows.Forms.MessageBox]::Show("Hello, World!")
X#
sub:main load:mscorlib.dll push:Hello, World! invoke:mscorlib.dll:System.Console:Write:1 endsub
XC
XC is a C like language from XMOS Ltd offering features supporting Communicating Sequential Processes on their multi-threaded, multi-core processors. This example shows some of those features.
#include <platform.h> #define BIT_RATE 115200 #define BIT_TIME XS1_TIMER_HZ / BIT_RATE // A one bit output port with buffering out port:1 buffered uart_tx = PORT_UART_TX; // Thread implements serial transmitter using the ports timer. void console (chanend c, out port:1 buffered TXD) { unsigned time; char byte; while (1) { c :> byte; // Read byte from the consol output channel. TXD <: 0 @ time; // Set start bit and save IO time stamp. for (int j = 0; j < 8; j += 1) // Data bits. { time += BIT_TIME; // Time of next bit. TXD @ time <: >> byte; // Shift out next bit on time. } time += BIT_TIME; // Two stop bits TXD @ time <: 1; time += BIT_TIME; TXD @ time <: 1; } } // Thread issues greeting message to the console void greeter(chanend c) { char msg[] = "Hello World!\n"; int i; while (1) // Repeatedly send message to console output channel. { for (i = 0; i < sizeof(msg) - 1; i++) { c <: msg[i]; // Output a byte to the channel. } } } int main() { chan c; // Communication channel between threads. par // Parallel execution of block statements. { on stdcore[0]: console(c, uart_tx); // Run console output thread on core 0. on stdcore[1]: greeter(c); // Run greeter thread or core 1. } return 0; }
XL
use XL.UI.CONSOLE WriteLn "Hello, world!"
or
import IO = XL.UI.CONSOLE IO.WriteLn "Hello, world!"
XMLmosaic
<Class> <Type>XMLmosaic Class</Type> <Method> <Name id="1">Main</Name> <Code id="1">void Main() { Console.WriteLine('Hello World!'); } </Code> </Method> <Counter> <Count>1</Count> </Counter> </Class>
Zdzich
Programming language with commands in Polish. Webpage
pisz Hello World!
koniec
Graphical user interfaces (GUIs)
ActionScript (Adobe Flash)
this.createTextField("hello_txt",0,10,10,100,20); this.hello_txt.text="Hello, world!";
AppleScript
display dialog "Hello, world!" buttons {"OK"} default button 1
boo
import System.Drawing
import System.Windows.Forms
f = Form()
f.Controls.Add(Label(Text: "Hello, world!", Location: Point(40,30)))
f.Controls.Add(Button(Text: "Ok", Location: Point(50, 55), Click: {Application.Exit()}))
Application.Run(f)
Functional equivalent of C# program below.
C#
Simply, using Message Box:
public class HelloWorld { static void Main() { System.Windows.Forms.MessageBox.Show("Hello, world!"); } }
Or:
using System; using System.Drawing; using System.Windows.Forms; public class HelloWorldForm : Form { public static void Main() { Application.Run(new HelloWorldForm()); } public HelloWorldForm() { Label label = new Label(); label.Text = "Hello, world!"; label.Location = new Point(40,30); this.Controls.Add(label); Button button = new Button(); button.Text = "OK"; button.Location = new Point(50,55); this.Controls.Add(button); button.Click += new EventHandler(button_Click); } private void button_Click(Object sender, EventArgs e) { Application.Exit(); } }
Clarion
The simplest way to achieve this is with the built in message function that is similar to the windows messageBox().
PROGRAM
MAP
END
CODE
MESSAGE('Hello, world!!','Clarion')
RETURN
A more real world example uses a Clarion structure to declare a window and the Clarion Accept loop to process events from that window.
PROGRAM
MAP
HelloProcedure PROCEDURE()
END
CODE
HelloProcedure()
RETURN
HelloProcedure PROCEDURE()
Window WINDOW('Clarion for Windows'),AT(,,222,116),FONT('Tahoma',8,,FONT:regular),ICON('Hey.ICO'), |
SYSTEM,GRAY
STRING('Hello, world!!'),AT(91,22),USE(?String1)
BUTTON('Close'),AT(92,78,37,14),USE(?CloseBtn),LEFT
END
CODE
OPEN(Window)
ACCEPT
CASE ACCEPTED()
OF ?CloseBtn
POST(EVENT:CloseWindow)
END
END
CLOSE(Window)
RETURN
Cocoa or GNUStep (In Objective C)
#import <Cocoa/Cocoa.h> @interface hello : NSObject { } @end @implementation hello -(void)awakeFromNib { NSBeep(); // we don't need this but it's conventional to beep // when you show an alert NSRunAlertPanel(@"Message from your Computer", @"Hello, world!", @"Hi!", nil, nil); } @end
Curl
{curl 3.0, 4.0 applet}
{curl-file-attributes character-encoding = "utf-8"}
Hello, world!
Delphi, Kylix
program Hello_World; uses QDialogs; begin ShowMessage('Hello, world!'); or MessageDlg ('Hello, world!', mtInformation, [mbOk], 0); end.
Erlang
-module(hello_world).
-export([hello/0]).
hello() ->
S = gs:start(),
Win = gs:create(window, S, [{width, 100}, {height, 50}]),
gs:create(label, Win, [{label, {text, "Hello, world!"}}]),
gs:config(Win, {map, true}),
receive
{gs, Win, destroy, _, _} ->
gs:stop()
end,
ok.
One way of invoking this would be to enter hello_world:hello(). in the Erlang shell; another would be to run from a command line:
erl -noshell -run hello_world hello -run init stop
Euphoria
MS-Windows only - basic.
include msgbox.e
if message_box("Hello, world!", "Hello", 0) then end if
MS-Windows only - using Win32Lib library
include win32lib.ew
createForm({
";Window; Hello",
";Label; Hello, world!"
})
include w32start.ew
F#
Using WindowsForms, at the F# interactive prompt:
let _ = System.Windows.Forms.MessageBox.Show("Hello, world!");;
FLTK2 (in C++)
#include <fltk/Window.h> #include <fltk/Widget.h> #include <fltk/run.h> using namespace fltk; int main(int argc, char **argv) { Window *window = new Window(300, 180); window->begin(); Widget *box = new Widget(20, 40, 260, 100, "Hello, world!"); box->box(UP_BOX); box->labelfont(HELVETICA_BOLD_ITALIC); box->labelsize(36); box->labeltype(SHADOW_LABEL); window->end(); window->show(argc, argv); return run(); }
G (LabVIEW)
PUBLIC SUB Main()
Message.Info("Hello, world!")
END
Gtk# (in C#)
using Gtk; using GtkSharp; using System; class Hello { static void Main() { Application.Init (); Window window = new Window(""); window.DeleteEvent += cls_evn; Button close = new Button ("Hello, world!"); close.Clicked += new EventHandler(cls_evn); window.Add(close); window.ShowAll(); Application.Run (); } static void cls_evn(object obj, EventArgs args) { Application.Quit(); } }
GTK+ 2.x (in Euphoria)
include gtk2/wrapper.e Info(NULL,"Hello","Hello, world!")
IOC/OCL (in IBM VisualAge for C++)
#include <iframe.hpp> void main() { IFrameWindow frame("Hello, world!"); frame.showModally() }
Java
import javax.swing.JOptionPane; public class Hello { public static void main(String[] args) { JOptionPane.showMessageDialog(null, "Hello, world!"); } }
K
This creates a window labeled "Hello, world!" with a button labeled "Hello, world!".
hello:hello..l:"Hello, world!" hello..c:`button `show$`hello
Microsoft Foundation Classes (in C++)
#include <afx.h> #include <afxwin.h> class CHelloWin : public CWnd { protected: DECLARE_MESSAGE_MAP() afx_msg void OnPaint(void) { CPaintDC dc(this); dc.TextOut(15, 3, TEXT("Hello, world!"), 13); } }; BEGIN_MESSAGE_MAP(CHelloWin, CWnd) ON_WM_PAINT() END_MESSAGE_MAP() class CHelloApp : public CWinApp { virtual BOOL InitInstance(); }; CHelloApp theApp; LPCTSTR wndClass; BOOL CHelloApp::InitInstance() { CWinApp::InitInstance(); CHelloWin* hello = new CHelloWin(); m_pMainWnd = hello; wndClass = AfxRegisterWndClass(CS_VREDRAW | CS_HREDRAW, 0, (HBRUSH)::GetStockObject(WHITE_BRUSH), 0); hello->CreateEx(0, wndClass, TEXT("Hello MFC"), WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 120, 50, NULL, NULL); hello->ShowWindow(SW_SHOW); hello->UpdateWindow(); return TRUE; }
Adobe Flex MXML
<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"> <mx:Label text="Hello, world!"/> </mx:Application>
NSIS
This creates a message box saying "Hello, world!".
OutFile "HelloWorld.exe" Name "Hello, world!" Caption "Hello, world!" Section Hello, world! SectionEnd Function .onInit MessageBox MB_OK "Hello, world!" Quit FunctionEnd
OCaml
Uses lablgtk
let () = let window = GWindow.window ~title:"Hello" ~border_width:10 () in window#connect#destroy ~callback:GMain.Main.quit; let button = GButton.button ~label:"Hello World" ~packing:window#add () in button#connect#clicked ~callback:window#destroy; window#show (); GMain.Main.main ()
OPL
(On Psion Series 3 and later compatible PDAs.)
PROC guihello:
ALERT("Hello, world!","","Exit")
ENDP
or
PROC hello: dINIT "Window Title" dTEXT "","Hello, world!" dBUTTONS "OK",13 DIALOG ENDP
Pure Data
Patch as ASCII-art:
[Hello, world!( | [print]
Patch as sourcecode:
#N canvas 0 0 300 300 10; #X msg 100 150 Hello, world!; #X obj 100 200 print; #X connect 0 0 1 0;
Python
Using Tkinter:
from Tkinter import * root = Tk() Label(root, text="Hello, world!").pack() root.mainloop()
Using PyQt:
import sys from PyQt4.QtCore import * from PyQt4.QtGui import * app = QApplication(sys.argv) label = QLabel("Hello, World!") label.show() sys.exit(app.exec_())
Using PyGTK:
from gtk import * label = Label("Hello, world!") label.show() window = Window() window.add(label) window.show() main()
Using Curves:
from math import * def f(x): return int(round(96.75 + -21.98*cos(x*1.118) + 13.29*sin(x*1.118) + -8.387*cos(2*x*1.118)\ + 17.94*sin(2*x*1.118) + 1.265*cos(3*x*1.118) + 16.58*sin(3*x*1.118)\ + 3.988*cos(4*x*1.118) + 8.463*sin(4*x*1.118) + 0.3583*cos(5*x*1.118)\ + 5.878*sin(5*x*1.118))) print "".join([chr(f(x)) for x in range(12)])
Qt toolkit (in C++)
#include <QApplication> #include <QMessageBox> int main(int argc, char * argv[]) { QApplication app(argc, argv); QMessageBox::information(0, "Qt4", "Hello World!"); }
or
#include <qapplication.h> #include <qpushbutton.h> #include <qwidget.h> #include <iostream> class HelloWorld : public QWidget { Q_OBJECT public: HelloWorld(); virtual ~HelloWorld(); public slots: void handleButtonClicked(); QPushButton *mPushButton; }; HelloWorld::HelloWorld() : QWidget(), mPushButton(new QPushButton("Hello, world!", this)) { connect(mPushButton, SIGNAL(clicked()), this, SLOT(handleButtonClicked())); } HelloWorld::~HelloWorld() {} void HelloWorld::handleButtonClicked() { std::cout << "Hello, world!" << std::endl; } int main(int argc, char *argv[]) { QApplication app(argc, argv); HelloWorld helloWorld; app.setMainWidget(&helloWorld); helloWorld.show(); return app.exec(); }
or
#include <QApplication> #include <QPushButton> #include <QVBoxLayout> int main(int argc, char *argv[]) { QApplication app(argc, argv); QWidget *window = new QWidget; QVBoxLayout *layout = new QVBoxLayout(window); QPushButton *hello = new QPushButton("Hello, world!", window); //connect the button to quitting hello->connect(hello, SIGNAL(clicked()), &app, SLOT(quit())); layout->addWidget(hello); layout->setMargin(10); layout->setSpacing(10); window->show(); return app.exec(); }
Rebol
view layout [text "Hello, world!"]
Robotic (MegaZeux)
* "Hello, world!" end
RPL
(On Hewlett-Packard HP-48G and HP-49G series calculators.)
<< "Hello, world!" MSGBOX >>
RTML
Hello () TEXT "Hello, world!"
Ruby with WxWidgets
require 'wxruby' class HelloWorldApp < Wx::App def on_init ourFrame = Wx::Frame.new(nil, -1, "Hello, world!").show ourDialogBox = Wx::MessageDialog.new(ourFrame, "Hello, world!", "Information:", \ Wx::OK|Wx::ICON_INFORMATION).show_modal end end HelloWorldApp.new.main_loop
Ruby with GTK+
require 'gtk2' Gtk.init window = Gtk::Window.new window.signal_connect("delete_event") { Gtk.main_quit; false } button = Gtk::Button.new("Hello, world!") button.signal_connect("clicked") { Gtk.main_quit; false } window.add(button) window.show_all Gtk.main
Ruby with Tk
require 'tk' window = TkRoot.new { title 'Hello, world!' } button = TkButton.new(window) { text 'Hello, world!' command proc { exit } pack } Tk.mainloop
Ruby
puts "Hello, world!"
Smalltalk
Evaluate in a workspace:
Dialog confirm: 'Hello, world!'
Using the Morphic GUI toolkit of Squeak Smalltalk:
('Hello, world!' asMorph openInWindow) submorphs second color: Color black
Using wxSqueak:
Wx messageBox: 'Hello, world!'
SWT (in Java)
import org.eclipse.swt.SWT; import org.eclipse.swt.layout.RowLayout; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Label; public class SWTHello { public static void main (String [] args) { Display display = new Display (); final Shell shell = new Shell(display); RowLayout layout = new RowLayout(); layout.justify = true; layout.pack = true; shell.setLayout(layout); shell.setText("Hello, world!"); Label label = new Label(shell, SWT.CENTER); label.setText("Hello, world!"); shell.pack(); shell.open (); while (!shell.isDisposed ()) { if (!display.readAndDispatch ()) display.sleep (); } display.dispose (); } }
Tk
label .l -text "Hello, world!" pack .l
and the same in one line
pack [label .l -text "Hello, world!"]
Tcl with Tk
package require Tk tk_messageBox -message "Hello, world!"
or
package require Tk pack [button .b -text "Hello, world!" -command exit]
Ubercode
Ubercode 1 class Hello
public function main()
code
call Msgbox("Hello", "Hello, world!")
end function
end class
Uniface
message "Hello, world!"
Virtools
VBA
Sub Main() MsgBox "Hello, world!" End Sub
Visual Basic .NET 2003/2005
Private Sub Form_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load MessageBox.Show("Hello, world!") Me.Close() End Sub
Note that the previous example will only work when the code is entered as part of a Form Load Event, such as the one created by default when generating a new project in the Visual Studio programming environment. Equivalently, the following code is roughly equivalent to the traditional Visual Basic 6 code by disabling the Application Framework and setting 'Sub Main' as the entry point for the application:
Public Module MyApplication Sub Main() MessageBox.Show("Hello, world!") End Sub End Class
or using a class;
Public Class MyApplication Shared Sub Main() MessageBox.Show("Hello, world!") End Sub End Class
Visual Prolog (note box)
#include @"pfc\vpi\vpi.ph"
goal
vpiCommonDialogs::note("Hello, world!").
Windows API (in C)
This uses the Windows API to create a full window containing the text. Another example below uses the built-in MessageBox function instead.
/* Name: Win32 example Copyright: GLP Author: Ryon S. Hunter( BlackNine313@gmail.com ) Date: 20/03/07 17:11 Description: This is an example of what a Win32 hello world looks like. */ #include <windows.h> #define APPTITLE "Win32 - Hello world" BOOL InitInstance(HINSTANCE,int); ATOM MyRegisterClass(HINSTANCE); LRESULT CALLBACK WinProc(HWND,UINT,WPARAM,LPARAM); LRESULT CALLBACK WinProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { PAINTSTRUCT ps; COLORREF c = RGB( 0, 0, 0 ); HDC hdc; RECT rt; switch(message) { case WM_DESTROY: // Exit the window? Ok PostQuitMessage(0); break; case WM_PAINT: GetClientRect( hWnd, &rt ); hdc = BeginPaint( hWnd, &ps ); DrawText( hdc, "Hello world!", sizeof( "Hello world!" ), &rt, DT_CENTER ); EndPaint( hWnd, &ps ); break; } return DefWindowProc(hWnd,message,wParam,lParam); } ATOM MyRegisterClass(HINSTANCE hInstance) { WNDCLASSEX wc; wc.cbSize = sizeof( WNDCLASSEX ); wc.style = CS_HREDRAW | CS_VREDRAW; wc.lpfnWndProc = (WNDPROC)WinProc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = 0; wc.hIcon = NULL; wc.hCursor = LoadCursor( NULL, IDC_ARROW ); wc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH); wc.lpszMenuName = NULL; wc.lpszClassName = APPTITLE; wc.hIconSm = NULL; return RegisterClassEx(&wc); } BOOL InitInstance(HINSTANCE hInstance, int nCmdShow) { HWND hWnd; hWnd = CreateWindow( // Create a win32 window APPTITLE, APPTITLE, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 500, 400, NULL, NULL, hInstance, NULL); if(!hWnd){ return FALSE; } ShowWindow( hWnd, nCmdShow ); UpdateWindow( hWnd ); return TRUE; } int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow ) { MSG msg; MyRegisterClass(hInstance); if(!InitInstance( hInstance,nCmdShow) ) return 1; while( GetMessage( &msg, NULL, 0, 0 ) ) { TranslateMessage( &msg ); DispatchMessage( &msg ); } return msg.wParam; }
XUL
<?xml version="1.0"?> <?xml-stylesheet href="chrome://global/skin/" type="text/css"?> <window id="yourwindow" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <label value="Hello, World!"/> </window>
Maple
with(Maplets):
with(Maplets[Elements]):
maplet := Maplet( "Hello world!" ):
Display( maplet );
Document formats
ASCII
The following sequence of characters, expressed in hexadecimal notation (with carriage return and newline characters at end of sequence):
48 65 6C 6C 6F 2C 20 77 6F 72 6C 64 21 0D 0A
The following sequence of characters, expressed as binary numbers (with cr/nl as above, and the same ordering of bytes):
00-07: 01001000 01100101 01101100 01101100 01101111 00101100 00100000 01110111 08-0E: 01101111 01110010 01101100 01100100 00100001 00001101 00001010
Page description languages
XHTML 1.1
(Using UTF-8 character set.)
<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Hello, world!</title> </head> <body> <p>Hello, world!</p> </body> </html>
HTML
Simple
<html> <body> Hello, world! </body> </html>
Informal
The <html> and <body> tags are not necessary for informal testing. Simply write it as text without tags.
Hello, world!
HTML 4.01 Strict (full)
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Strict//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <title>Hello, world!</title> </head> <body> <p>Hello, world!</p> </body> </html>
The first paragraph of the W3C Recommendation on The global structure of an HTML document also features this example.
HTML 4.01 Strict (smallest)
This is the smallest legal version, leaving out all optional tags
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Strict//EN"> <title>Hello, world!</title> <p>Hello, world!
HTML 5
<!DOCTYPE html> <html> <head> <title>Hello, World!</title> </head> <body> <h1>Hello, world!</h1> </body> </html>
%PDF-1.0 1 0 obj << /Type /Catalog /Pages 3 0 R /Outlines 2 0 R >> endobj 2 0 obj << /Type /Outlines /Count 0 >> endobj 3 0 obj << /Type /Pages /Count 1 /Kids [4 0 R] >> endobj 4 0 obj << /Type /Page /Parent 3 0 R /Resources << /Font << /F1 7 0 R >>/ProcSet 6 0 R >> /MediaBox [0 0 612 792] /Contents 5 0 R >> endobj 5 0 obj << /Length 44 >> stream BT /F1 24 TF 100 100 Td (Hello, world!) Tj ET endstream endobj 6 0 obj [/PDF /Text] endobj 7 0 obj << /Type /Font /Subtype /Type1 /Name /F1 /BaseFont /Helvetica /Encoding /MacRomanEncoding >> endobj xref 0 8 0000000000 65535 f 0000000009 00000 n 0000000074 00000 n 0000000120 00000 n 0000000179 00000 n 0000000322 00000 n 0000000415 00000 n 0000000445 00000 n trailer << /Size 8 /Root 1 0 R >> startxref 553 %%EOF
This is a valid PDF only if the text file has CRLF line endings.
PostScript
% Displays on console. (Hello, world!) =
%! % Displays as page output. /Courier findfont 24 scalefont setfont 100 100 moveto (Hello, world!) show showpage
RTF
{\rtf1\ansi\deff0
{\fonttbl {\f0 Courier New;}}
\f0\fs20 Hello, world!
}
SVG
<?xml version="1.0" encoding="UTF-8" standalone="no"?> <svg xmlns="http://www.w3.org/2000/svg" width="200" height="100"> <text x="50" y="50">Hello, world!</text> </svg>
TeX
Hello, world! \bye
LaTeX 2ε
\documentclass{article} \begin{document} Hello, world! \end{document}
ConTeXt
\starttext Hello, world! \stoptext
Media-based scripting languages
AviSynth
BlankClip()
Subtitle("Hello, world!")
(Creates a video with default properties)
Lingo (Macromedia Director scripting language)
on exitFrame me put "Hello, world!" end
Outputs the string to the message window if placed in a single movie frame. Alternatively, to display an alert box stating the message you could use
on exitFrame me alert "Hello, world!" end
POV-Ray
#include "colors.inc"
camera {
location <3, 1, -10>
look_at <3,0,0>
}
light_source { <500,500,-1000> White }
text {
ttf "timrom.ttf" "Hello, world!" 1, 0
pigment { White }
}
Esoteric programming languages
This page shows the Hello, world! program in esoteric programming languages — that is, working programming languages that were designed as experiments or jokes and were not intended for serious use.
Alef++
use java.lang.*;
main
{
System->out->println[ 'Hello, world!' ];
}
Arrow
■→→■↓■←■←■↓■→→■ /* makes H */ →→■↓■↑↑↑■ /* makes I */
Befunge
"!dlrow olleH">v
:
,
^_@
v v"Hello, world!!"< > ^ > >:#v_@ ^ .<
0"!dlrow olleH">,:#<_@
BlooP, FlooP
From Eric Raymond's interpreter package (changed to use upper case as in the book).
DEFINE PROCEDURE ''HELLO-WORLD''[N]:
BLOCK 0: BEGIN
PRINT['Hello, world!'];
BLOCK 0: END.
Brainfuck
++++++++++[>+++++++>++++++++++>+++>+<<<<-] >++.>+.+++++++..+++.>++.<<+++++++++++++++. >.+++.------.--------.>+.>.
Chef
Hello, world! Souffle. Ingredients. 72 g haricot beans 101 eggs 108 g lard 111 cups oil 32 zucchinis 119 ml water 114 g red salmon 100 g dijon mustard 33 potatoes Method. Put potatoes into the mixing bowl. Put dijon mustard into the mixing bowl. Put lard into the mixing bowl. Put red salmon into the mixing bowl. Put oil into the mixing bowl. Put water into the mixing bowl. Put zucchinis into the mixing bowl. Put oil into the mixing bowl. Put lard into the mixing bowl. Put lard into the mixing bowl. Put eggs into the mixing bowl. Put haricot beans into the mixing bowl. Liquefy contents of the mixing bowl. Pour contents of the mixing bowl into the baking dish. Serves 1.
False
"Hello, World! "
The newline before the terminating quote mark is necessary.
HQ9+
H
INTERCAL programming language
PLEASE DO ,1 <- #13 DO ,1 SUB #1 <- #238 DO ,1 SUB #2 <- #112 DO ,1 SUB #3 <- #112 DO ,1 SUB #4 <- #0 DO ,1 SUB #5 <- #64 DO ,1 SUB #6 <- #238 DO ,1 SUB #7 <- #26 DO ,1 SUB #8 <- #248 DO ,1 SUB #9 <- #168 DO ,1 SUB #10 <- #24 DO ,1 SUB #11 <- #16 DO ,1 SUB #12 <- #158 DO ,1 SUB #13 <- #52 PLEASE READ OUT ,1 PLEASE GIVE UP
LOLCODE
HAI; CAN HAS STDIO?; VISIBLE "Hello, World!"; KTHXBYE;
Malbolge programming language
(=<`:9876Z4321UT.-Q+*)M'&%$H"!~}|Bzy?=|{z]KwZY44Eq0/{mlk**hKs_dG5[m_BA{?-Y;;Vb'rR5431M}/.zHGwEDCBA@98\6543W10/.R,+O<
P programming language
"Hello, world!\n"
Perl
Not really an esoteric language, but this code uses obfuscation:
qq chop lc and print chr ord uc q chop uc and print chr ord q ne sin and print chr ord qw q le q and print chr ord q else and print chr ord q pop and print chr oct oct ord uc qw q bind q and print chr ord q q eq and print chr ord qw q warn q and print chr ord q pop and print chr ord q qr q and print chr ord q else and print chr ord qw q do q and print chr hex length q q semctl setpgrp chop q
SNUSP
/e+++++++++++++++++++++++++++++.\ ./\/\/\ /+++\!>.+++o.l.+++++++l/ #/?\ $H!\++++++\ + \comma.------------ .<w++++++++.\ /?\<!\-/ /++++++/ +/\ /.--------o/ \-/!.++++++++++/?\n /=\++++++\ +\\!=++++++\ \r+++.l------.d--------.>+.!\-/ \!\/\/\/\/ \++++++++++/
Modular SNUSP:
/@@@@++++# #+++@@\ #-----@@@\n
$@\H.@/e.+++++++l.l.+++o.>>++++.< .<@/w.@\o.+++r.++@\l.@\d.>+.@/.#
\@@@@=>++++>+++++<<@+++++# #---@@/!=========/!==/
Spoon (programming language)
0101111111110010001111111111010000001101100101001011111110010001111110 1000000110111001010111111100101000101011100101001011111111111001000110 0000000000000000001000000110110000010100000000000000000000000000000000 0000000101001011111111111001000111111101000000110110010100101111110010 0011111101000000110110010101110010100000000000000000000010100000000000 0000000000000000101001011111111111001000110000000000000000000100000011 011000001010
Super NAND Time!!
12 (32 35 37 38 42) 13 (35 37 38 39 43) 14 ((31 36 39 42 43)) 15 (31 33 34 35 38 40 43) 16 (37 39) 17 ((31 43)) 18 ((36 42 43)) 20 ((42(43))) 21 44 31 ((31)(44)) 32 (32(31)) 33 (33(32)) 34 (34(33)) 35 (35(34)) 36 (36(35)) 37 (37(36)) 38 (38(37)) 39 (39(38)) 40 (40(39)) 41 (41(40)) 42 (42(41)) 43 (43(42)) 44 1
Taxi programming language
"Hello, World!" is waiting at the Writer's Depot. Go to Writer's Depot: west 1st left, 2nd right, 1st left, 2nd left. Pickup a passenger going to the Post Office. Go to the Post Office: north 1st right, 2nd right, 1st left. Go to the Taxi Garage: north 1st right, 1st left, 1st right.
T programming language
%begin @jump $main %main.0 @echo %msg %main.1 @end %main.count 2 %msg Hello, world!
This=That
x=Hello,world! x=print
Unlambda programming language
`r```````````.H.e.l.l.o. .w.o.r.l.di
Var'aq programming language
Note: actually prints "What do you want, universe?" in Klingon.
~ nuqneH { ~ 'u' ~ nuqneH disp disp } name
nuqneH
Whitespace
Note that whitespace has been highlighted (Space, Tab)
empty-line empty-line empty-line empty-line empty-line empty-line empty-line/EOF
XS programming language
<print>Hello, world!</print>
DUNNBOL1
A code language that draws in binary on a braille plotter (note that this is just the word HELLO).
BGN GRPLOT BIN DRAWPLOT 00000000000000000000000000000000000000000000000000000000 00111001110011111110011100000000111000000000011111000000 00010000100001000010001000000000010000000000100000100000 00010000100001000000001000000000010000000000100000100000 00011111100001111000001000000000010000000000100000100000 00010000100001000000001000000000010000000000100000100000 00010000100001000010001000000000010000000000100000100000 00111001110011111110011111111000111111110000011111000000 00000000000000000000000000000000000000000000000000000000 ENDDRAW END