Hello world
จากวิกิพีเดีย สารานุกรมเสรี
- บทความนี้มีชื่อเป็นภาษาอังกฤษ เนื่องจากยังไม่มีชื่อภาษาไทยที่กระชับ เหมาะสม หรือไม่รู้วิธีอ่านในภาษาไทย
Hello world (เฮลโลเวิลด์) เป็นคำที่ใช้ในภาษาโปรแกรมที่แสดงผลออกมาคำว่า "Hello world" หรือ "Hello, world!" (ตามหลักภาษาอังกฤษ) นิยมใช้ในการเรียนการสอนซึ่งนักเรียนจะได้เขียนโปรแกรม hello world เป็นโปรแกรมแรก
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
[แก้] ตัวอย่างของ Hello world ในภาษาโปรแกรมต่างๆ
[แก้] 4GL - Computer Associates with Ingres/DB
message "Hello, World!" with style = popup;
[แก้] ABAP - SAP AG
REPORT ZELLO. WRITE 'Hello, World!'.
[แก้] ABC
WRITE "Hello, world!"
[แก้] Ada
with Ada.Text_IO; procedure Hello is begin Ada.Text_IO.Put_Line ("Hello, world!") ; end Hello;
For explanation see wikibooks:Ada Programming:Basic.
[แก้] ALGOL 68
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!") )
[แก้] AmigaE
PROC main ()
WriteF ('Hello, World!') ;
ENDPROC
[แก้] APL
'Hello World'
[แก้] AppleScript
See also GUI section.
return "Hello World!"
[แก้] ASP
<%
Response.Write ("Hello World")
%>
- or simply:
<%="Hello World" %>
[แก้] ASP.NET
Response.Write ("Hello World")
[แก้] Assembly language
[แก้] Accumulator-only architecture: DEC PDP-8, PAL-III assembler
See the example section of the PDP-8 article.
[แก้] First successful µP/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
[แก้] Accumulator + index register machine: MOS Technology 6502, CBM KERNAL, ca65 assembler
MSG: .ASCIIZ "Hello, world!"
LDX #$F3
@LP: LDA MSG-$F3,X ; load character
JSR $FFD2 ; CHROUT (KERNAL) , output to current output device (screen)
INX
BNE @LP ;
RTS
[แก้] Accumulator/Index microcoded machine: Data General Nova, RDOS
See the example section of the Nova article.
[แก้] Expanded accumulator machine: Intel x86, DOS, TASM
MODEL SMALL
IDEAL
STACK 100H
DATASEG
MSG DB 'Hello, world!', 13, '$'
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
[แก้] Expanded accumulator machine: Intel x86, Microsoft Windows, FASM
;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
[แก้] 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
[แก้] 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
[แก้] 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 $255,string get the address of the string in register 255
TRAP 0,Fputs,StdOut put the string pointed to by register 255 to file StdOut
TRAP 0,Halt,0 end process
[แก้] General-purpose-register CISC: DEC PDP-11, RT-11, MACRO-11
.MCALL .REGDEF,.TTYOUT,.EXIT
.REGDEF
HELLO: MOV #MSG,R1
MOVB (R1) ,R0
LOOP: .TTYOUT
MOVB + (R1) ,R0
BNE LOOP
.EXIT
MSG: .ASCIZ /HELLO, WORLD!/
.END HELLO
[แก้] CISC on advanced multiprocessing OS: DEC VAX, VMS, MACRO-32
.title hello
.psect data, wrt, noexe
chan: .blkw 1
iosb: .blkq 1
term: .ascid "SYS$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
[แก้] 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
หรือเวอร์ชันย่อ (จาก qUE) ;
SWI"OS_WriteS":EQUS"Hello, world!":EQUB0:ALIGN:MOVPC,R14
[แก้] AutoHotkey
MsgBox, "Hello, World!"
[แก้] Autoit
MsgBox (1,'','Hello, world!')
[แก้] AWK
BEGIN { print "Hello, world!" }
[แก้] Bash
echo Hello,\ world!
[แก้] BASIC
[แก้] 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
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.
[แก้] 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
[แก้] StarOffice/OpenOffice Basic
sub main
print "Hello, World"
end sub
[แก้] TI-BASIC
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
[แก้] Visual Basic
Sub Main MsgBox "Hello World!" End Sub
[แก้] Visual Basic .NET
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
[แก้] Blitz BASIC
Print "Hello, World!"
[แก้] DarkBASIC
PRINT "HELLO WORLD" TEXT 0,0,"Hello World" WAIT KEY
[แก้] BCPL
GET "LIBHDR"
LET START () BE
$ (
WRITES ("Hello, world!*N")
$)
[แก้] BLISS
%TITLE 'HELLO_WORLD'
MODULE HELLO_WORLD (IDENT='V1.0', MAIN=HELLO_WORLD,
ADDRESSING_MODE (EXTERNAL=GENERAL)) =
BEGIN
LIBRARY 'SYS$LIBRARY:STARLET';
EXTERNAL ROUTINE
LIB$PUT_OUTPUT;
GLOBAL ROUTINE HELLO_WORLD =
BEGIN
LIB$PUT_OUTPUT (%ASCID %STRING ('Hello World!'))
END;
END
ELUDOM
[แก้] boo
See also GUI Section.
print "Hello, world!"
[แก้] Casio FX-9750
This program will work on the fx-9750 graphing calculator and compatibles.
"HELLO WORLD"↵
[แก้] C
#include <stdio.h>
int main (void)
{
puts ("Hello, world!") ;
return 0;
}
[แก้] Ch
The above C code can run in Ch as examples. The simple one in Ch is:
printf ("Hello, world\n") ;
[แก้] C#
See also GUI Section.
class HelloWorldApp
{
static void Main ()
{
System.Console.WriteLine ("Hello, world!") ;
}
}
[แก้] C++
#include <iostream>
int main ()
{
std::cout << "Hello, world!\n";
}
[แก้] C++/CLI
int main ()
{
System::Console::WriteLine ("Hello, world!") ;
}
[แก้] C++, Managed (.NET)
#using <mscorlib.dll>
using namespace System;
int wmain ()
{
Console::WriteLine ("Hello, world!") ;
}
[แก้] ColdFusion (CFM)
<cfoutput>Hello, world!</cfoutput>
[แก้] COMAL
PRINT "Hello, World!"
[แก้] CIL
.method public static void Main () cil managed
{
.entrypoint
.maxstack 8
ldstr "Hello, world!"
call void [mscorlib]System.Console::WriteLine (string)
ret
}
[แก้] Clean
module hello Start = "Hello, world"
[แก้] CLIST
PROC 0 WRITE Hello, World!
[แก้] Clipper
@1,1 say "Hello World!"
[แก้] COBOL
IDENTIFICATION DIVISION. PROGRAM-ID. HELLO-WORLD. ENVIRONMENT DIVISION. DATA DIVISION. PROCEDURE DIVISION. DISPLAY "Hello, world!". STOP RUN.
[แก้] D
import std.stdio;
void main ()
{
writefln ("Hello, world!") ;
}
[แก้] DC an arbitrary precision calculator
[Hello, world!]p
[แก้] DCL batch
$ write sys$output "Hello, world!"
[แก้] DOLL
// 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!") ;
}
[แก้] Dylan
module: hello
format-out ("Hello, world!\n") ;
[แก้] Ed and Ex (Ed extended)
a hello world! . p
[แก้] Eiffel
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
[แก้] Erlang
-module (hello).
-export ([hello_world/0]).
hello_world () -> io:fwrite ("Hello, world!\n").
[แก้] Euphoria
puts (1, "Hello, world!")
[แก้] F#
print_endline "Hello world"
[แก้] Factor
"Hello world" print
[แก้] filePro
@once mesgbox "Hello, world!" exit
[แก้] Fjölnir
"hello" < main
{
main ->
stef (;)
stofn
skrifastreng (;"Halló Veröld!") ,
stofnlok
}
*
"GRUNNUR"
;
[แก้] FOCAL
type "Hello, World!",!
or
t "Hello, World!",!
[แก้] Focus
-TYPE Hello World
[แก้] 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 ('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;
[แก้] Forth
: halloforth ( -- ) ." Hello, world!" CR ;
[แก้] FORTRAN
PROGRAM HELLO
PRINT *, 'Hello, world!'
END
[แก้] Fril
? ((pp "Hello, world!"))
[แก้] Frink
println["Hello, world!"]
[แก้] Gambas
See also GUI section.
PUBLIC SUB Main () Print "Hello, world!" END
[แก้] Game Maker
In the draw event of some object:
draw_text (x,y,"Hello World")
Or to show a splash screen message:
show_message ("Hello World")
[แก้] Haskell
module Main (main) where main = putStr "Hello World\n"
or
main = putStr "Hello World\n"
[แก้] Heron
program HelloWorld;
functions {
_main () {
print_string ("Hello, world!") ;
}
}
end
[แก้] HP-41 & HP-42S
(Handheld Hewlett-Packard RPN-based alphanumeric engineering calculators.)
01 LBLTHELLO 02 THELLO, WORLD 03 PROMPT
[แก้] HyperTalk (Apple HyperCard's scripting programming language)
put "Hello world"
or
Answer "Hello World"
[แก้] IDL
print,"Hello world!"
[แก้] Inform
[ Main; print "Hello, world!^"; ];
[แก้] Io
"Hello world!" print
or
write ("Hello world!\n")
[แก้] Iptscrae
ON ENTER {
"Hello, " "World!" & SAY
}
[แก้] J
Simplest:
Hello World
Probably closest in semantics:
'Hello World'
[แก้] 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 = "!"
[แก้] Java
See also GUI section.
public class HelloWorld
{
public static void main (String[] args)
{
System.out.println ("Hello, world!") ;
}
}
[แก้] Java byte-code
(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
[แก้] K
`0:"Hello world\n"
[แก้] Kogut
WriteLine "Hello, world!"
[แก้] Lisp
Lisp has many dialects that have appeared over its almost fifty-year history.
[แก้] Common Lisp
(format t "Hello world!~%")
or
(write-line "Hello World!")
or merely:
"Hello World!"
[แก้] Scheme
(display "Hello, world!") (newline)
[แก้] Emacs Lisp
(print "Hello World")
[แก้] Logo
print [hello world!]
or
pr [Hello World!]
In mswlogo only
messagebox [Hi] [Hello World]
[แก้] Lua
print "Hello, world!"
[แก้] LuaPSP
screen:print (1,1,"Hello, world!") screen:flip ()
[แก้] M (MUMPS)
W "Hello, world!"
[แก้] Macsyma, Maxima
print ("Hello, world!") $
[แก้] Maple
print ("Hello, World!") ;
[แก้] Mathematica
Print["Hello World"]
[แก้] MATLAB
disp ('Hello World')
[แก้] 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;
[แก้] Modula-2
MODULE Hello;
FROM Terminal2 IMPORT WriteLn; WriteString;
BEGIN
WriteString ("Hello, world!") ;
WriteLn;
END Hello;
[แก้] MOO
notify (player, "Hello, world!") ;
[แก้] 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.)
@echo Hello, world!
[แก้] MUF
: main me @ "Hello, world!" notify ;
[แก้] Natural
WRITE "Hello, World!" END
[แก้] 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!") ;
}
}
[แก้] 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.
[แก้] Objective C
[แก้] Functional C Version
#import <stdio.h>
int main () {
printf ( "Hello, World!\n" ) ;
return 0;
}
[แก้] Object-Oriented C Version
#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; }
[แก้] OPENSTEP/Cocoa Version
#import <Foundation/Foundation.h>
int main (int argc, const char * argv[])
{
NSLog (@"Hello, World!") ;
return 0;
}
[แก้] OCaml
print_endline "Hello world!"
[แก้] OPL
See also GUI section.
PROC hello: PRINT "Hello, World" ENDP
[แก้] OPS5
(object-class request
^action)
(startup
(strategy MEA)
(make request ^action hello)
)
(rule hello
(request ^action hello)
(write |Hello World!| (crlf))
)
[แก้] OPS83
module hello (main)
{ procedure main ( )
{
write () |Hello, world!|, '\n';
};
};
[แก้] Parrot assembly language
print "Hello, world!\n" end
[แก้] Pascal
program hello (output) ;
begin
writeln ('Hello, world!')
end.
[แก้] Perl
print "Hello, world!\n";
(This is the first example in Learning Perl; the semicolon is optional.)
[แก้] Perl 6
say "Hello World";
[แก้] PHP
Hello, world!
or
<?php echo "Hello, world!\n"; ?>
or
<?="Hello, world!\n"?>
(Note: This will not work unless short open tags are enabled.
[แก้] Pike
int main () {
write ("Hello, world!\n") ;
return 0;
}
[แก้] PL/SQL
-- start anonymous block
set serveroutput on size 10000000;
begin
dbms_output.enable (1000000) ;
dbms_output.put_line ('Hello World!') ;
end;
-- end anonymous block
[แก้] PL/I
Test: proc options (main) reorder;
put skip edit ('Hello, world!') (a) ;
end Test;
[แก้] POP-11
'Hello world' =>
[แก้] PostScript
See PDL section
[แก้] Processing
println ("Hello, world!") ;
[แก้] Prolog
write ('Hello, world') ,nl.
[แก้] Python
print "Hello, world!"
[แก้] REFAL
$ENTRY GO{=<Prout 'Hello, world!'>;}
[แก้] REXX, ARexx, NetRexx, and Object REXX
say "Hello, world!"
[แก้] 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 >>
[แก้] Ruby
See also GUI section.
puts "Hello, world!"
[แก้] SAS
data _null_; put 'Hello, world!'; run;
[แก้] Sather
class HELLO_WORLD is main is #OUT+"Hello, world\n"; end; end;
[แก้] Scala (programming language)
object HelloWorld with Application {
Console.println ("Hello, world!") ;
}
[แก้] Scriptol
print "Hello world!"
[แก้] sed
(note: requires at least one line of input)
sed -ne '1s/.*/Hello, world!/p'
[แก้] Seed7
$ include "seed7_05.s7i";
const proc: main is func
begin
writeln ("Hello, world!") ;
end func;
[แก้] Self
'Hello, World!' print.
[แก้] Simula
BEGIN
OutText ("Hello, world!") ;
OutImage;
END
[แก้] Smalltalk
Transcript show: 'Hello, world!'; cr
[แก้] SML
print "Hello, world!\n";
[แก้] SNOBOL
OUTPUT = "Hello, world!"
END
[แก้] Span
class Hello {
static public main: args {
Console << "Hello, world!\n";
}
}
[แก้] 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;
[แก้] SPITBOL
OUTPUT = "Hello, world!"
END
[แก้] SQL
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!"
[แก้] STARLET
RACINE: HELLO_WORLD.
NOTIONS:
HELLO_WORLD : ecrire ("Hello, world!").
[แก้] TACL
#OUTPUT Hello, world!
[แก้] Tcl (Tool command language)
See also GUI section.
puts "Hello, world!"
[แก้] Turing
put "Hello, world!"
[แก้] TSQL
Declare @Output varchar (16) Set @Output='Hello, world!' Select @Output
or, simpler variations:
Select 'Hello, world!' Print 'Hello, world!'
[แก้] UNIX-style shell
echo 'Hello, world!'
or
printf '%s' $'Hello, world!\n'
or for a curses interface:
dialog --msgbox 'Hello, world!' 0 0
[แก้] Visual Prolog console program
#include @"pfc\console\console.ph"
goal
console::init () ,
stdio::write ("Hello World!").
[แก้] Graphical user interfaces (GUIs)
[แก้] ActionScript (Macromedia flash mx)
this.createTextField ("hello_txt",0,10,10,100,20) ;
this.hello_txt.text="Hello, world";
[แก้] AppleScript
See also TUI section.
display dialog "Hello World!" buttons {"OK"} default button 1
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!"
[แก้] boo
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.
[แก้] C#
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 ) ;
}
}
}
[แก้] 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
[แก้] Curl
{curl 3.0, 4.0 applet}
{curl-file-attributes character-encoding = "utf-8"}
Hello, world!
[แก้] Delphi, Kylix
program Hello_World;
uses
Windows;
begin
ShowMessage ("Hello, world!") ;
end.
[แก้] 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
[แก้] 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 () ;
}
[แก้] Gambas
See also TUI section.
PUBLIC SUB Main ()
Message.Info ("Hello, world!")
END
[แก้] GTK+ (in C++)
#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;
}
[แก้] GTK+ (in Python)
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 ()
[แก้] 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 () ;
}
}
[แก้] GTK+ 2.x (in Euphoria)
include gtk2/wrapper.e Info (NULL,"Hello","Hello World!")
[แก้] Java
See also TUI section.
import javax.swing.JOptionPane;
public class Hello {
public static void main (String[] args) {
JOptionPane.showMessageDialog (null, "Hello, world!!") ;
}
}
[แก้] Java applet
- 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) ;
}
}
[แก้] JavaScript and JScript
- 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!') ;
- There are many other ways:
javascript:document.write ('Hello, world!\n') ;
[แก้] K
This creates a window labeled "Hello world" with a button labeled "Hello world".
hello:hello..l:"Hello world" hello..c:`button `show$`hello
[แก้] OPL
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
[แก้] Qt toolkit (in C++)
#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 () ;
}
[แก้] REALbasic
MsgBox "Hello, world!"
[แก้] RPL
See also TUI section.
(On Hewlett-Packard HP-48G and HP-49G series calculators.)
<< "Hello, World!" MSGBOX >>
[แก้] RTML
Hello () TEXT "Hello, world!"
[แก้] Ruby with WxWidgets
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
[แก้] Ruby with GTK+
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
[แก้] 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 () ;
}
}
[แก้] Tcl/Tk
See also TUI section.
label .l -text "Hello, world!" pack .l
[แก้] Python with Tkinter
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!")
[แก้] Ubercode
Ubercode 1 class Hello
public function main ()
code
call Msgbox ("Hello", "Hello, world!")
end function
end class
[แก้] Visual Basic including VBA
Sub Main ()
MsgBox "Hello, world!"
End Sub
[แก้] Visual Prolog note box
#include @"pfc\vpi\vpi.ph"
goal
vpiCommonDialogs::note ("Hello World!").
[แก้] 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.
#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;
}
[แก้] Windows Script Host with VBScript
<job id="HelloWorld">
<script language="VBScript">
WScript.Echo "Hello, world!"
</script>
</job>
[แก้] Windows Script Host with JScript
<job id="HelloWorld">
<script language="JScript">
WScript.Echo ( "Hello, world!" ) ;
</script>
</job>
[แก้] XSL (T)
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>
[แก้] XUL
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>
[แก้] Esoteric programming languages
See: Hello world program in esoteric languages
[แก้] Document formats
[แก้] 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
[แก้] LaTeX 2ε
\documentclass{article}
\begin{document}
Hello, world!
\end{document}
[แก้] Page description languages
[แก้] 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" xml:lang="en">
<head>
<title>Hello, world!</title>
</head>
<body>
<p>Hello, world!</p>
</body>
</html>
[แก้] HTML
(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.
[แก้] PDF
%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
[แก้] PostScript
% Displays on console. (Hello world!) = %! % Displays as page output. /Courier findfont 24 scalefont setfont 100 100 moveto (Hello world!) show showpage
[แก้] RTF
{\rtf1\ansi\deff0
{\fonttbl {\f0 Courier New;}}
\f0\fs20 Hello, world!
}
[แก้] TeX
Hello World \bye
[แก้] Media-based scripting languages
[แก้] AviSynth
BlankClip ()
Subtitle ("Hello, world!")
(Creates a video with default properties)
[แก้] 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
[แก้] 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 }
}
