This is the default introductory program to a new ProgrammingLanguage. It simply prints the text string "Hello World\n".
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.
As a demonstration of the feel of a language, PPR:WardNumber is a much better problem. 99 Bottles of Beer on the Wall can also be adequate.
Some examples of HelloWorld in different ProgrammingLanguages:
PRINT "Hello World\n"
int main(int argc, char **argv) {
printf("Hello World\n");
return 0;}
int main (int argc, char *argv[]) {
std::cout << "Hello World" << std::endl;
return 0;}
I'm not sure how much of this is serious or facetious...
000100 IDENTIFICATION DIVISION.
000200 PROGRAM-ID. HELLOWORLD.
000300 DATE-WRITTEN. 02/05/96 21:04.
000400* AUTHOR BRIAN COLLINS
000500 ENVIRONMENT DIVISION.
000600 CONFIGURATION SECTION.
000700 SOURCE-COMPUTER. RM-COBOL.
000800 OBJECT-COMPUTER. RM-COBOL.
000900
001000 DATA DIVISION.
001100 FILE SECTION.
001200 100000 PROCEDURE DIVISION.
100100
100200 MAIN-LOGIC SECTION.
100300 BEGIN.
100400 DISPLAY " " LINE 1 POSITION 1 ERASE EOS.
100500 DISPLAY "HELLO, WORLD." LINE 15 POSITION 10.
100600 STOP RUN.
100700 MAIN-LOGIC-EXIT.
100800 EXIT.
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello World");
}
}
Linux x86 AssemblyLanguage
.data
.align 4
message:.string "Hello World\n"
message_len = . - message
.text
.align 4
.globl _start
_start:movl $0x4, %eax
movl $0x1, %ebx
movl $message, %ecx
movl $message_len, %edx
int $0x80
movl $0x1, %eax
xorl %ebx, %ebx
int $0x80
Sorry, someone is being facetious. Of course, it's:
print "Hello World\n";
And the list could go on and on.
See also:
4 pages link to HelloWorld: