เฮลโลเวิลด์

จากวิกิพีเดีย สารานุกรมเสรี
(เปลี่ยนทางจาก Hello World!)

โปรแกรมเฮลโลเวิลด์ เป็นโปรแกรมคอมพิวเตอร์พื้นฐานที่ทำการแสดงผลคำว่า "Hello world" หรือ "Hello, world!"(ตามหลักภาษาอังกฤษ) บนอุปกรณ์แสดงผล ซึ่งเป็นหนึ่งในโปรแกรมที่ง่ายที่สุดเท่าที่จะเป็นไปได้ในการเขียนภาษาโปรแกรมต่างๆ เพราะฉะนั้นโดยธรรมเนียมปฏิบัติแล้ว มักจะใช้ในการตรวจสอบว่าเขียนภาษาโปรแกรมได้ถูกต้องหรือระบบมีการประมวลผลที่ถูกต้อง และมักถูกใช้เป็นตัวอย่างที่ง่ายที่สุดในการแสดงวากยสัมพันธ์การเขียนโปรแกรม โดยเฉพาะอย่างยิ่งบน command-line interpreter (เชลล์) เพื่อทำการแสดงผลออกมา อย่างไรก็ตามโปรแกรมนี้ก็มีความซับซ้อนอย่างน่าประหลาดใจ โดยเฉพาะเมื่อต้องเขียนโปรแกรมสำหรับส่วนต่อประสานกราฟิกกับผู้ใช้ เมื่อเขียนโปรแกรมในembedded system ช้อความจะถูกส่งมายังจอภาพผลึกเหลว ซึ่งตัวอุปกรณ์นั้นไม่ได้แสดงผลตัวอักษร แต่ตัวโปรแกรมง่ายๆ นี้ จะทำการสร้างสัญญาณ เช่นเดียวกับการเปิดLED บ้างที่เราอาจกล่าวได้ว่า "Hello world" เปรียบเสมือนการต้อนรับเราเข้าสู่โปรแกรมก็ได้

โปรแกรมเฮลโลเวิลด์โปรแกรมแรกเกิดขึ้น จากหนังสือการเขียนโปรแกรมภาษาซี แต่งโดยไบรอัน เคอร์นิงแฮน และ เดนนิส ริตชี ตีพิมพ์ในปี พ.ศ. 2521 (ค.ศ. 1978) โดยตัวอย่างโปรแกรมมาจาก กระดาษจดข้อมูลของไบรอันขณะที่ทำงานที่ เบลล์แล็บ (Bell Laboratories) ปี พ.ศ. 2517 (ค.ศ. 1974) ตัวอย่างในหนังสือ พิมพ์ข้อความว่า "hello, world" (โดย ไม่มีตัวพิมพ์ใหญ่ และเครื่องหมายตกใจ ซึ่งได้เพิ่มมาในภายหลัง) โดยแสดงข้อความ:

 main ( ) {
     printf ("hello, world!") ;
 }

การเขียนคำนี้ มีการใช้งานโดยเขียนหลายแบบคือ ตัวอักษร H ใหญ่ และ h เล็ก ขณะเดียวกับ W ใหญ่ และ w เล็ก รวมถึงการเขียนเครื่องหมาย และแบบไม่มีเครื่องหมาย

การเขียนชุดคำสั่งนี้ในขณะที่บางโปรแกรมสามารถใช้คำสั่งได้อย่างเรียบง่าย ในขณะที่บางโปรแกรมต้องใช้คำสั่งซับซ้อนในการแสดงผล โดยเฉพาะอย่างยิ่งที่ใช้GUI โปรแกรมเฮลโลเวิลด์มีประโยชน์ในการทดสอบว่าคอมไพเลอร์และส่วนต่างๆหลักของโปรแกรมทำงานได้ การรวบรวมคำสั่ง "hello world" ในภาษาโปรแกรมต่างๆ ถูกใช้ในการช่วยเรียน และการเปรียบเทียบการใช้งานของภาษาต่างๆ

เนื้อหา

ตัวอย่างของ Hello world ในภาษาโปรแกรมต่างๆ[แก้]

4GL - Computer Associates with Ingres/DB[แก้]

message "Hello, World!" with style = popup;

ABAP - SAP AG[แก้]

REPORT ZELLO.
WRITE 'Hello, World!'.

ABC[แก้]

WRITE "Hello, world!"

Ada[แก้]

with Ada.Text_IO;

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

For explanation see wikibooks:Ada Programming:Basic.

ALGOL 68[แก้]

In the popular upper-case stropping convention for bold words:

BEGIN
    print (("Hello, World!", newline))
END

or using prime stropping suitable for punch cards:

'BEGIN'
    PRINT (("HELLO, WORLD!", NEWLINE))
'END'

or minimally using the short form of begin and end, and implied newline at program termination:

( print ("Hello, World!") )

AmigaE[แก้]

PROC main ()
   WriteF ('Hello, World!') ;
ENDPROC

APL[แก้]

'Hello World'

AppleScript[แก้]

See also GUI section.

return "Hello World!"

ASP[แก้]

<%
Response.Write ("Hello World")
%>
or simply:
<%="Hello World" %>

ASP.NET[แก้]

Response.Write ("Hello World")

Assembly language[แก้]

Accumulator-only architecture: DEC PDP-8, PAL-III assembler[แก้]

See the example section of the PDP-8 article.

First successful µP/OS combinations: Intel 8080/Zilog Z80, CP/M, RMAC assembler[แก้]

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

Accumulator + index register machine: MOS Technology 6502, CBM KERNAL, ca65 assembler[แก้]

MSG:   .ASCIIZ "Hello, world!"
        LDX    #$F3
@LP:    LDA    MSG-$F3,X ; load character
        JSR    $FFD2     ; CHROUT (KERNAL) , output to current output device (screen)
        INX
        BNE    @LP       ; 
        RTS

Accumulator/Index microcoded machine: Data General Nova, RDOS[แก้]

See the example section of the Nova article.

Expanded accumulator machine: Intel x86, DOS, TASM[แก้]

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

Expanded accumulator machine: Intel x86, Microsoft Windows, FASM[แก้]

Assumes that enviromnent variable %fasminc% is set
format PE GUI 4.0
include '%fasminc%\win32a.inc'
section '.code' code readable executable
invoke MessageBox,0,hellomsg,hellolb,MB_OK+MB_ICONINFORMATION
invoke ExitProcess,0
section '.data' data readable writable
hellomsg db 'Hello, World!',0
hellolb db 'Hello World',0
data import
library user32,'user32.dll',kernel32,'kernel32.dll'
include '%fasminc%\apia\user32.inc'
include '%fasminc%\apia\kernel32.inc'
end data

Expanded accumulator machine: Intel x86, Linux, GAS[แก้]

.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

General-purpose fictional computer: MIX, MIXAL[แก้]

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[แก้]

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[แก้]

.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

CISC on advanced multiprocessing OS: DEC VAX, VMS, MACRO-32[แก้]

.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

RISC processor: ARM, RISC OS, BBC BASIC's in-line assembler[แก้]

.program         
         ADR R0,message
         SWI "OS_Write0"
         SWI "OS_Exit"
.message         
         DCS "Hello, world!"
         DCB 0
          ALIGN

หรือเวอร์ชันย่อ (จาก qUE) ;

         SWI"OS_WriteS":EQUS"Hello, world!":EQUB0:ALIGN:MOVPC,R14

AutoHotkey[แก้]

MsgBox, "Hello, World!"

Autoit[แก้]

MsgBox (1,'','Hello, world!')

AWK[แก้]

BEGIN { print "Hello, world!" }

Bash[แก้]

echo Hello,\ world!

BASIC[แก้]

General[แก้]

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

Such implementations of BASIC 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.

PBASIC[แก้]

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[แก้]

sub main
    print "Hello, World"
end sub

TI-BASIC[แก้]

On TI calculators of the TI-80 through TI-86 range:

:Disp "HELLO, WORLD!"           or
:Output (x,y,"HELLO, WORLD!")    or
:Text (x,y,"HELLO, WORLD!")      or
:Text (-1,x,y,"HELLO, WORLD!")   ;only on the 83+ and higher

or simply

:"HELLO, WORLD!"

On TI-89/TI-92 (+) /Voyage 200 calculators:

:hellowld ()
:Prgm
:Disp "Hello, world!"
:EndPrgm

Visual Basic[แก้]

Sub Main
  MsgBox "Hello World!"
End Sub

Visual Basic .NET[แก้]

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

or, defined differently,

Class HelloWorldApp
  Shared Sub Main ()
     System.Console.WriteLine ("Hello, world!")
  End Sub
End Class

Blitz BASIC[แก้]

Print "Hello, World!"

DarkBASIC[แก้]

PRINT "HELLO WORLD"

TEXT 0,0,"Hello World"
WAIT KEY

BCPL[แก้]

GET "LIBHDR"

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

BLISS[แก้]

%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

boo[แก้]

See also GUI Section.

print "Hello, world!"


Casio FX-9750[แก้]

This program will work on the fx-9750 graphing calculator and compatibles.

"HELLO WORLD"

C[แก้]

#include <stdio.h>

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

Ch[แก้]

The above C code can run in Ch as examples. The simple one in Ch is:

 printf ("Hello, world\n") ;


C#[แก้]

See also GUI Section.

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

C++[แก้]

#include <iostream>
using namespace std;

int main ()
{
    cout << "Hello, world!\n";
}

C++/CLI[แก้]

int main ()
{
   System::Console::WriteLine ("Hello, world!") ;
}

C++, Managed (.NET)[แก้]

#using <mscorlib.dll>

using namespace System;

int wmain ()
{
    Console::WriteLine ("Hello, world!") ;
}

ColdFusion (CFM)[แก้]

<cfoutput>Hello, world!</cfoutput>

COMAL[แก้]

PRINT "Hello, World!"

CIL[แก้]

.method public static void Main () cil managed
{
     .entrypoint
     .maxstack 8
     ldstr "Hello, world!"
     call void [mscorlib]System.Console::WriteLine (string)
     ret
}

Clean[แก้]

module hello

Start = "Hello, world"

CLIST[แก้]

PROC 0
WRITE Hello, World!

Clipper[แก้]

@1,1 say "Hello World!"

COBOL[แก้]

IDENTIFICATION DIVISION.
PROGRAM-ID.     HELLO-WORLD.

ENVIRONMENT DIVISION.

DATA DIVISION.

PROCEDURE DIVISION.
DISPLAY "Hello, world!".
STOP RUN.


D[แก้]

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

DC an arbitrary precision calculator[แก้]

[Hello, world!]p

DCL batch[แก้]

$ write sys$output "Hello, world!"

DOLL[แก้]

// The program is itself an object. The program "this" object can be overloaded
// as a function that work as "main" function in a C program.
this ()
{
    system.stdout ("Hello, World!") ;
}

Dylan[แก้]

module: hello

format-out ("Hello, world!\n") ;

Ed and Ex (Ed extended)[แก้]

a
hello world!
.
p

Eiffel[แก้]

class HELLO_WORLD

creation
    make
feature
    make is
    local
            io:BASIC_IO
    do
            !!io
            io.put_string ("%N Hello, world!")
    end -- make
end -- class HELLO_WORLD

Erlang[แก้]

-module (hello).
-export ([hello_world/0]).

hello_world () -> io:fwrite ("Hello, world!\n").

Euphoria[แก้]

puts (1, "Hello, world!")

F#[แก้]

print_endline "Hello world"

Factor[แก้]

"Hello world" print

filePro[แก้]

@once
   mesgbox "Hello, world!"
   exit

Fjölnir[แก้]

"hello" < main
{
   main ->
   stef (;)
   stofn
       skrifastreng (;"Halló Veröld!") ,
   stofnlok
}
*
"GRUNNUR"
;

FOCAL[แก้]

type "Hello, World!",!

or

t "Hello, World!",!

Focus[แก้]

-TYPE Hello World

Forte TOOL[แก้]

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 ('HelloWorld!') ;
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[แก้]

: halloforth ( -- ) ." Hello, world!" CR ;

FORTRAN[แก้]

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

Fril[แก้]

 ? ((pp "Hello, world!"))

Frink[แก้]

println["Hello, world!"]

Gambas[แก้]

See also GUI section.

PUBLIC SUB Main ()
  Print "Hello, world!"
END

Game Maker[แก้]

In the draw event of some object:

draw_text (x,y,"Hello World")

Or to show a splash screen message:

show_message ("Hello World")

Haskell[แก้]

module Main (main) where

main = putStrLn "Hello World"

or

main = putStrLn "Hello World"

Heron[แก้]

program HelloWorld;
functions {
  _main () {
    print_string ("Hello, world!") ;
  }
}
end

HP-41 & HP-42S[แก้]

(Handheld Hewlett-Packard RPN-based alphanumeric engineering calculators.)

01 LBLTHELLO

02 THELLO, WORLD

03 PROMPT

HP-41 output

HyperTalk (Apple HyperCard's scripting programming language)[แก้]

put "Hello world"

Hello, HyperCard World!

or

Answer "Hello World"

IDL[แก้]

print,"Hello world!"

Inform[แก้]

[ Main;
  print "Hello, world!^";
];

Io[แก้]

"Hello world!" print

or

write ("Hello world!\n")

Iptscrae[แก้]

ON ENTER {
    "Hello, " "World!" & SAY
}

J[แก้]

Simplest:

 Hello World

Probably closest in semantics:

'Hello World'

Jal[แก้]

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[แก้]

See also GUI section.

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

Java byte-code[แก้]

(disassembler output of javap -c Hello.class)

public class Hello extends java.lang.Object {
    public Hello () ;
    public static void main (java.lang.String[]) ;
}

Method Hello ()
   0 aload_0
   1 invokespecial #1 <Method java.lang.Object () >
   4 return

Method void main (java.lang.String[])
   0 getstatic #2 <Field java.io.PrintStream out>
   3 ldc #3 <String "Hello, world!">
   5 invokevirtual #4 <Method void println (java.lang.String) >
   8 return

K[แก้]

`0:"Hello world\n"

Kogut[แก้]

WriteLine "Hello, world!"

Lisp[แก้]

Lisp has many dialects that have appeared over its almost fifty-year history.

Common Lisp[แก้]

(format t "Hello world!~%")

or

(write-line "Hello World!")

or merely:

 "Hello World!"


Scheme[แก้]

(display "Hello, world!")
(newline)

Emacs Lisp[แก้]

 (print "Hello World")

[แก้]

print [hello  world!]

or

pr [Hello World!]

In mswlogo only

messagebox [Hi] [Hello World]

Lua[แก้]

print "Hello, world!"

LuaPSP[แก้]

screen:print (1,1,"Hello, world!")
screen:flip ()

M (MUMPS)[แก้]

W "Hello, world!"

Macsyma, Maxima[แก้]

print ("Hello, world!") $

Maple[แก้]

print ("Hello, World!") ;

Mathematica[แก้]

Print["Hello World"]

MATLAB[แก้]

disp ('Hello World')

Max[แก้]

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;

Modula-2[แก้]

MODULE Hello;

FROM Terminal2 IMPORT WriteLn; WriteString;

BEGIN
   WriteString ("Hello, world!") ;
   WriteLn;
END Hello;

MOO[แก้]

notify (player, "Hello, world!") ;

MS-DOS batch[แก้]

(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.)

@echo Hello, world!

MUF[แก้]

: main
  me @ "Hello, world!" notify
;

Natural[แก้]

WRITE "Hello, World!"
END

Nemerle[แก้]

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[แก้]

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[แก้]

Functional C Version[แก้]

#import <stdio.h>

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

Object-Oriented C Version[แก้]

  1. import <stdio.h>
//An object-oriented version.
@interface Hello : Object
{
   const char str[] = "Hello world";
}
- (id) hello (void) ;
@end

@implementation Hello
- (id) hello (void)
{
   printf ("%s\n", str) ;
}
@end

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

OPENSTEP/Cocoa Version[แก้]

  1. import <Foundation/Foundation.h>
int main (int argc, const char * argv[])
{
   NSLog (@"Hello, World!") ;
   return 0;
}

OCaml[แก้]

print_endline "Hello world!"

OPL[แก้]

See also GUI section.

PROC hello:
  PRINT "Hello, World"
ENDP

OPS5[แก้]

(object-class request
         ^action)

(startup
   (strategy MEA)
   (make request ^action hello)
)


(rule hello
   (request ^action hello)
   (write |Hello World!| (crlf))
)

OPS83[แก้]

module hello (main)
{  procedure main ( )
   {
      write () |Hello, world!|, '\n';
   };
};

Parrot assembly language[แก้]

print "Hello, world!\n"
end

Pascal[แก้]

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


Perl[แก้]

print "Hello, world!\n";

(This is the first example in Learning Perl; the semicolon is optional.)

Perl 6[แก้]

say "Hello World";

PHP[แก้]

Hello, world!

or

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

or

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

(Note: This will not work unless short open tags are enabled.)

Pike[แก้]

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

PL/SQL[แก้]

-- start anonymous block
set serveroutput on size 10000000;
begin
    dbms_output.enable (1000000) ;
    dbms_output.put_line ('Hello World!') ;
end;
-- end anonymous block

PL/I[แก้]

Test: proc options (main) reorder;
  put skip edit ('Hello, world!') (a) ;
end Test;

POP-11[แก้]

'Hello world' =>

PostScript[แก้]

See PDL section

Processing[แก้]

println ("Hello, world!") ;

Prolog[แก้]

write ('Hello, world') ,nl.

Python[แก้]

print "Hello, world!"

หรือใน Python 3.x

print("Hello, world!")

REFAL[แก้]

$ENTRY GO{=<Prout 'Hello, world!'>;}

REXX, ARexx, NetRexx, and Object REXX[แก้]

say "Hello, world!"

RPL[แก้]

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[แก้]

See also GUI section.

puts "Hello, world!"

SAS[แก้]

data _null_;
put 'Hello, world!';
run;

Sather[แก้]

class HELLO_WORLD is
  main is 
   #OUT+"Hello, world\n"; 
  end; 
end;

Scala (programming language)[แก้]

object HelloWorld with Application {
  Console.println ("Hello, world!") ;
}

Scriptol[แก้]

print "Hello world!"

sed[แก้]

(note: requires at least one line of input)

sed -ne '1s/.*/Hello, world!/p'

Seed7[แก้]

$ include "seed7_05.s7i";

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

Self[แก้]

'Hello, World!' print.

Simula[แก้]

BEGIN

    OutText ("Hello, world!") ;
    OutImage;
END

Smalltalk[แก้]

Transcript show: 'Hello, world!'; cr

SML[แก้]

print "Hello, world!\n";

SNOBOL[แก้]

    OUTPUT = "Hello, world!"
END

Span[แก้]

class Hello {
  static public main: args {
    Console << "Hello, world!\n";
  }
}

SPARK[แก้]

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;

SPITBOL[แก้]

    OUTPUT = "Hello, world!"
END

SQL[แก้]

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

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, from PL/SQL') ;
END;

or (e.g. MySQL or PostgreSQL dialect)

SELECT 'Hello, world!';

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!"

STARLET[แก้]

RACINE: HELLO_WORLD.

NOTIONS:
HELLO_WORLD : ecrire ("Hello, world!").

TACL[แก้]

#OUTPUT Hello, world!

Tcl (Tool command language)[แก้]

See also GUI section.

puts "Hello, world!"

Turing[แก้]

put "Hello, world!"

TSQL[แก้]

Declare @Output varchar (16)
Set @Output='Hello, world!'
Select @Output

or, simpler variations:

Select 'Hello, world!'
Print 'Hello, world!'

UNIX-style shell[แก้]

echo 'Hello, world!'

or

printf '%s' $'Hello, world!\n'

or for a curses interface:

dialog --msgbox 'Hello, world!' 0 0

Visual Prolog console program[แก้]

#include @"pfc\console\console.ph"

goal
  console::init () ,
  stdio::write ("Hello World!").

Graphical user interfaces (GUIs)[แก้]

ActionScript (Macromedia flash mx)[แก้]

 this.createTextField ("hello_txt",0,10,10,100,20) ;
this.hello_txt.text="Hello, world";

AppleScript[แก้]

See also TUI section.

display dialog "Hello World!" buttons {"OK"} default button 1

ไฟล์:Ashelloworlddisplay.png

Or to have the OS synthesize it and literally speak out the words "hello world!" (with no comma, as that would cause the synthesizer to pause)

say "Hello world!"

boo[แก้]

See also TUI section.

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#[แก้]

See also TUI section.

using System;
using System.Drawing;
using System.Windows.Forms;
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) ;
       Controls.Add (label) ;
       Button button = new Button () ;
       button.Text = "OK";
       button.Location = new Point (50,55) ;
       Controls.Add (button) ;
       button.Click += new EventHandler (OnButtonOk) ;
   }
    void OnButtonOk (Object sender, EventArgs e) {
       Application.Exit () ;
   }
}

or ||

using System;
using System.Drawing;
using System.Windows.Forms;

namespace HelloWorld
{
    public class HelloWorld : Form
    {
        public HelloWorld ()
        {
            ShowMessage () ;
        }
        
        [STAThread]
        static void Main () 
        {
            Application.Run (new HelloWorld ()) ;
        }
        
        private void ShowMessage ()
        {
            MessageBox.Show ( 
                "Hello World!!!", 
                "Hello World - C#", 
                MessageBoxButtons.OK, 
                MessageBoxIcon.Information, 
                MessageBoxDefaultButton.Button1 ) ;
        }
    }
}


ไฟล์:HelloWorld.JPG

Cocoa or GNUStep (In Objective C)[แก้]

#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[แก้]

{curl 3.0, 4.0 applet}
{curl-file-attributes character-encoding = "utf-8"}

Hello, world!

Delphi, Kylix[แก้]

program Hello_World;
uses    
  Windows;
   
begin
  ShowMessage ("Hello, world!") ;
end.

Euphoria[แก้]

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

FLTK2 (in C++)[แก้]

#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 () ;
}

Gambas[แก้]

See also TUI section.

PUBLIC SUB Main ()
  Message.Info ("Hello, world!")
END

ไฟล์:Gambashelloworld.png

GTK+ (in C++)[แก้]

#include <iostream>
#include <gtkmm/main.h>
#include <gtkmm/button.h>
#include <gtkmm/window.h>
using namespace std;

class HelloWorld : public Gtk::Window {
public:
  HelloWorld () ;
  virtual ~HelloWorld () ;
protected:
  Gtk::Button m_button;
  virtual void on_button_clicked () ;
};

HelloWorld::HelloWorld ()
: m_button ("Hello, world!") {
    set_border_width (10) ;
    m_button.signal_clicked ().connect (SigC::slot (*this,
                                      &HelloWorld::on_button_clicked)) ;
    add (m_button) ;
    m_button.show () ;
}

HelloWorld::~HelloWorld () {}

void HelloWorld::on_button_clicked () {
    cout << "Hello, world!" << endl;
}

int main (int argc, char *argv[]) {
    Gtk::Main kit (argc, argv) ;
    HelloWorld helloworld;
    Gtk::Main::run (helloworld) ;
    return 0;
}

GTK+ (in Python)[แก้]

from gtk import *

window = Window (WINDOW_TOPLEVEL)
window.set_title ("Hello World!")
window.connect ("destroy", main_quit)
window.add (VBox ())
window.child.pack_start (Label ("Hello World!"))
button=Button ("OK")
window.child.pack_end (button)
button.connect ("clicked", main_quit)
window.show_all ()
main ()

or

import gtk
gtk.MessageDialog (message_format="Hello World!").run ()

Gtk# (in C#)[แก้]

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)[แก้]

include gtk2/wrapper.e

Info (NULL,"Hello","Hello World!")

ไฟล์:EuphoriaHelloWorld.png

Java[แก้]

See also TUI section.

import javax.swing.JOptionPane;

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

HelloJava.png

Java applet[แก้]

Java applets work in conjunction with HTML files.
<HTML>
<HEAD>
<TITLE>Hello World</TITLE>
</HEAD>
<BODY>

HelloWorld Program says:

<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100>
</APPLET>

</BODY>
</HTML>
import java.applet.*;
import java.awt.*;

public class HelloWorld extends Applet {
  public void paint (Graphics g) {
    g.drawString ("Hello, world!", 100, 50) ;
  }
}

JavaScript and JScript[แก้]

JavaScript (an implementation of ECMAScript) is a client-side scripting language used in HTML files. The following code can be placed in any HTML file:
<script type="text/javascript"><!--
function helloWorld ()
{
    alert ("Hello, world!") ;
}
//--></script>

<a href="#" onclick="helloWorld () ; return false;">Hello World Example</a>
An easier method uses JavaScript implicitly, directly calling the reserved alert function. Cut and paste the following line inside the <body> .... </body> HTML tags.
<a href="#" onclick="alert ('Hello, world!') ; return false;">Hello World Example
</a>
An even easier method involves using popular browsers' support for the virtual 'javascript' protocol to execute JavaScript code. Enter the following as an Internet address (usually by pasting into the address box) :
javascript:alert ('Hello, world!') ;

ไฟล์:Js-hello world.png

There are many other ways:
javascript:document.write ('Hello, world!\n') ;

K[แก้]

This creates a window labeled "Hello world" with a button labeled "Hello world".

hello:hello..l:"Hello world"
hello..c:`button
`show$`hello

OPL[แก้]

See also TUI section.

(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

Qt toolkit (in C++)[แก้]

#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>

int main (int argc, char *argv[])
{
  QApplication app (argc, argv) ;

  QPushButton hello ("Hello world!") ;
  hello.resize (100, 30) ;
  hello.show () ;
  hello.connect (&hello, SIGNAL (clicked ()) , SLOT (close ())) ;
  return app.exec () ;
}

REALbasic[แก้]

MsgBox "Hello, world!"

RPL[แก้]

See also TUI section.

(On Hewlett-Packard HP-48G and HP-49G series calculators.)


<< "Hello, World!" MSGBOX >>

RTML[แก้]

Hello ()

TEXT "Hello, world!"

Ruby with WxWidgets[แก้]

See also TUI section.

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+[แก้]

See also TUI section.

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

SWT (in Java)[แก้]

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 () ;
    }
}

ไฟล์:SWT Hello World.gif

Tcl/Tk[แก้]

See also TUI section.

label .l -text "Hello, world!"
pack .l

Python with Tkinter[แก้]

See also TUI section.

import Tkinter
r = Tkinter.Tk ()
w = Tkinter.Label (r, text="Hello, world!")
w.pack ()
r.mainloop ()

or, more primitively:

import tkMessageBox as mb
mb.showinfo (message="Hello, world!")

Ubercode[แก้]

 Ubercode 1 class Hello
 public function main ()
 code
   call Msgbox ("Hello", "Hello, world!")
 end function
 end class

Visual Basic including VBA[แก้]

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

Visual Prolog note box[แก้]

#include @"pfc\vpi\vpi.ph"

goal
  vpiCommonDialogs::note ("Hello World!").

Windows API (in C)[แก้]

This uses the Windows API to create a full window containing the text. Another example below uses the built-in MessageBox function instead.

#include <windows.h>

LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM) ;

char szClassName[] = "MainWnd";

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine,
                   int nCmdShow)
{
  HWND hwnd;
  MSG msg;
  WNDCLASSEX wincl;

  wincl.cbSize = sizeof (WNDCLASSEX) ;
  wincl.cbClsExtra = 0;
  wincl.cbWndExtra = 0;
  wincl.style = 0;
  wincl.hInstance = hInstance;
  wincl.lpszClassName = szClassName;
  wincl.lpszMenuName = NULL; //No menu
  wincl.lpfnWndProc = WindowProcedure;
  wincl.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1) ; //Color of the window
  wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION) ; //EXE icon
  wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION) ; //Small program icon
  wincl.hCursor = LoadCursor (NULL, IDC_ARROW) ; //Cursor

  if (!RegisterClassEx (&wincl))
        return 0;

  hwnd = CreateWindowEx (0, //No extended window styles
        szClassName, //Class name
        "", //Window caption
        WS_OVERLAPPEDWINDOW & ~WS_MAXIMIZEBOX,
        CW_USEDEFAULT, CW_USEDEFAULT, //Let Windows decide the left and top
                                      //positions of the window
        120, 50, //Width and height of the window,
        NULL, NULL, hInstance, NULL) ;

  //Make the window visible on the screen
  ShowWindow (hwnd, nCmdShow) ;

  //Run the message loop
  while (GetMessage (&msg, NULL, 0, 0) >0)
  {
        TranslateMessage (&msg) ;
        DispatchMessage (&msg) ;
  }
  return msg.wParam;
}

LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message,
                                 WPARAM wParam, LPARAM lParam)
{
  PAINTSTRUCT ps;
  HDC hdc;
  switch (message)
  {
  case WM_PAINT:
        hdc = BeginPaint (hwnd, &ps) ;
        TextOut (hdc, 15, 3, "Hello, world!", 13) ;
        EndPaint (hwnd, &ps) ;
        break;
  case WM_DESTROY:
        PostQuitMessage (0) ;
        break;
  default:
        return DefWindowProc (hwnd, message, wParam, lParam) ;
  }
  return 0;
}

Or, much more simply:

#include <windows.h>
int WINAPI WinMain (HINSTANCE hInst, HINSTANCE hPrevInstance, LPSTR lpCmdLine,
                   int nCmdShow)
{
    MessageBox (NULL, "Hello, world!", "", MB_OK) ;
    return 0;
}

Windows Script Host with VBScript[แก้]

<job id="HelloWorld">
        <script language="VBScript">
                WScript.Echo "Hello, world!"
        </script>
</job>

Windows Script Host with JScript[แก้]

<job id="HelloWorld">
        <script language="JScript">
                WScript.Echo ( "Hello, world!" ) ;
        </script>
</job>

XSL (T)[แก้]

There are many ways to do this in XSL, the simplest being:

<xsl:template match="/">
  <xsl:text>Hello, world!</xsl:text>
</xsl:template>

If nested similar to the HTML version, it would be:

<xsl:template match="/">
  <html>
    <body>
      <h1>Hello, world!</h1>
    </body>
  </html>
</xsl:template>

XUL[แก้]

Type the following in a text file (e.g. hello.world.xul) and then open with Mozilla Firefox.

<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
  <box align="center" pack="center" flex="1">
    <description>Hello, world</description>
  </box>
</window>

Esoteric programming languages[แก้]

See: Hello world program in esoteric languages

Document formats[แก้]

ASCII[แก้]

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

LaTeX[แก้]

\documentclass{article}
\begin{document}
  Hello, world!
\end{document}

Page description languages[แก้]

XHTML 1.1[แก้]

(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" xml:lang="en">
  <head>
    <title>Hello, world!</title>
  </head>
  <body>
    <p>Hello, world!</p>
  </body>
</html>

HTML[แก้]

(simple)

<html><body>
<h1>Hello, world!</h1>
</body></html>

<html> and <body>-tags are not necessary for informal testing. You could even use the following:

<pre>Hello, World!</pre>

or simply write it as text without tags.

=== 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>
    <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
    <title>Hello, World!</title>
   </head>
   <body>
    <p>Hello, world!</p>
   </body>
</html>

Notice that the HEAD tag is optional and could be omitted. The first paragraph of the W3C Recommendation on The global structure of an HTML document also features this example.


PDF[แก้]

%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


PostScript[แก้]

% Displays on console.
(Hello world!) =

%!
% Displays as page output.
/Courier findfont
24 scalefont
setfont
100 100 moveto
(Hello world!) show
showpage

RTF[แก้]

{\rtf1\ansi\deff0
{\fonttbl {\f0 Courier New;}}
\f0\fs20 Hello, world!
}

TeX[แก้]

Hello World
\bye

Media-based scripting languages[แก้]

AviSynth[แก้]

BlankClip ()
Subtitle ("Hello, world!")

(Creates a video with default properties)

Lingo (Macromedia Director scripting language)[แก้]

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[แก้]

#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 }
}