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Annotated edit history of HelloWorld version 23, including all changes. View license author blame.
Rev Author # Line
23 AristotlePagaltzis 1 This is the default introductory program to a new ProgrammingLanguage. It simply prints the text “Hello World” and a newline.
15 CraigBox 2
21 AristotlePagaltzis 3 HelloWorld is not really meant as a sample program, though. What you learn from creating a Hello World program is how to use the language tools: it's a first exercise in entering, compiling and running a program on a paticular system, and it might make you go find the documentation on the I/O library in some cases. In many very high level languages, it looks exactly the same.
20 AristotlePagaltzis 4
5 As a demonstration of the feel of a language, PPR:WardNumber is a much better problem. [99 Bottles of Beer on the Wall | http://99-bottles-of-beer.ls-la.net/] can also be adequate.
6
23 AristotlePagaltzis 7 Some examples of HelloWorld in different ProgrammingLanguage~s:
15 CraigBox 8
23 AristotlePagaltzis 9 [BASIC]::
10 <verbatim>
11 PRINT "Hello World\n"
12 </verbatim>
15 CraigBox 13
23 AristotlePagaltzis 14 [C]::
15 <verbatim>
16 #include <stdio.h>
17 int main(int argc, char **argv) {
18 printf("Hello World\n");
19 return 0;
20 }
21 </verbatim>
15 CraigBox 22
23 AristotlePagaltzis 23 [C++]::
24 <verbatim>
25 #include <iostream>
26 int main (int argc, char *argv[]) {
27 std::cout << "Hello World" << std::endl;
28 return 0;
29 }
30 </verbatim>
15 CraigBox 31
23 AristotlePagaltzis 32 [COBOL]::
33 ''I'm not sure how much of this is serious or facetious...''
34 <verbatim>
35 000100 IDENTIFICATION DIVISION.
36 000200 PROGRAM-ID. HELLOWORLD.
37 000300 DATE-WRITTEN. 02/05/96 21:04.
38 000400* AUTHOR BRIAN COLLINS
39 000500 ENVIRONMENT DIVISION.
40 000600 CONFIGURATION SECTION.
41 000700 SOURCE-COMPUTER. RM-COBOL.
42 000800 OBJECT-COMPUTER. RM-COBOL.
43 000900
44 001000 DATA DIVISION.
45 001100 FILE SECTION.
46 001200
47 100000 PROCEDURE DIVISION.
48 100100
49 100200 MAIN-LOGIC SECTION.
50 100300 BEGIN.
51 100400 DISPLAY " " LINE 1 POSITION 1 ERASE EOS.
52 100500 DISPLAY "HELLO, WORLD." LINE 15 POSITION 10.
53 100600 STOP RUN.
54 100700 MAIN-LOGIC-EXIT.
55 100800 EXIT.
56 </verbatim>
18 DavidHallett 57
58 [Java]
23 AristotlePagaltzis 59 <verbatim>
60 public class HelloWorld {
61 public static void main(String[] args) {
62 System.out.println("Hello World");
63 }
18 DavidHallett 64 }
23 AristotlePagaltzis 65 </verbatim>
66
67 [Linux] [x86] AssemblyLanguage::
68 <verbatim>
69 .data
70 .align 4
71 message::
72 .string "Hello World\n"
73 message_len = . - message
74
75 .text
76 .align 4
77 .globl _start
78 _start::
79 movl $0x4, %eax
80 movl $0x1, %ebx
81 movl $message, %ecx
82 movl $message_len, %edx
83 int $0x80
84 movl $0x1, %eax
85 xorl %ebx, %ebx
86 int $0x80
87 </verbatim>
15 CraigBox 88
23 AristotlePagaltzis 89 [Perl]::
90 <verbatim>
91 print join('', pack("V4", (0x6c6c6548,0x6f77206f,0xa646c72)));
92 </verbatim>
15 CraigBox 93
23 AristotlePagaltzis 94 ''Sorry, someone is being facetious. Of course, it's:''
15 CraigBox 95
23 AristotlePagaltzis 96 <verbatim>
97 print "Hello World\n";
98 </verbatim>
15 CraigBox 99
23 AristotlePagaltzis 100 [Python]::
101 <verbatim>
102 print "Hello World"
103 </verbatim>
15 CraigBox 104
23 AristotlePagaltzis 105 __UserRPL__ (for the HP48 Calculator)::
106 <verbatim>
107 << "Hello World" MSGBOX >>
108 </verbatim>
19 ReneBartosh 109
23 AristotlePagaltzis 110 [PHP]::
111 <verbatim>
112 <?php
113 echo("Hello World\n");
114 ?>
115 </verbatim>
15 CraigBox 116
20 AristotlePagaltzis 117 And the list could go on and on.
15 CraigBox 118
20 AristotlePagaltzis 119 See also:
23 AristotlePagaltzis 120 * [Hello, World Page! | http://www2.latech.edu/~acm/HelloWorld.shtml], a very comprehensive collection of HelloWorld programs in many ProgrammingLanguage~s
20 AristotlePagaltzis 121 * PolyGlot