Hello World in Cocoa Obj-C (OS X)

#import <Foundation/Foundation.h>

int main (int argc, const char * argv[]) {
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

    NSLog(@"Hello, World!");
    [pool release];
    return 0;
}

Hello World in Clipper

// Hello World in Clipper

? "Hello World"

Hello World in Clean

module hello

Start :: String
Start = "Hello World!\n"

!Hello World in Clarion

 PROGRAM
 
 MAP
 END
 
 CODE
 
 MESSAGE('Hello World!')
 
 RETURN

Hello World in CICS COBOL

000100        IDENTIFICATION DIVISION.                           
000200        PROGRAM-ID. HELLO.                                 
000300       * HELLO WORLD IN CICS COBOL.                        
000400        AUTHOR. ROBERT GOSLING.                            
000500        ENVIRONMENT DIVISION.                              
000600        DATA DIVISION.                                     
000700        WORKING-STORAGE SECTION.                           
000800        01 WS-DATA-AREA PIC X(80) VALUE "HELLO WORLD!".    
000900        PROCEDURE DIVISION.                                
001000            EXEC CICS SEND FROM (WS-DATA-AREA) END-EXEC.   
001100            EXEC CICS RETURN END-EXEC.

Dólar oficial y dólar blue hoy

Dólar oficial y dólar blue hoy

hello world

"Hello World" redirects here. For other uses, see Hello World (disambiguation).

A GUI "Hello World" program, written in Perl

CNC machining test in Perspex

A "Hello world" program is a computer program that outputs "Hello, world" on a display device. Because it is typically one of the simplest programs possible in most programming languages, it is by tradition often used to illustrate to beginners the most basic syntax of a programming language. It is also used to verify that a language or system is operating correctly.

In a device that does not display text, a simple program to produce a signal, such as turning on an LED, is often substituted for "Hello world" as the introductory program.