Traditionally, the first program that every programmer writes when starting to learn a new programming language is a program that prints the text “Hello World” to the screen. In this article, we have collected examples of this program in different programming languages.
Hello World in C
#include <stdio.h>
int main()
{
printf("Hello, World!\n");
return 0;
}
Hello World in Swift
import Swift
print("Hello, World!")
Hello World in Java
class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
Hello World in Kotlin
package demo
fun main(args : Array<String>) {
println("Hello, world!")
}
Hello World in Python
print("Hello, World!")
Hello World in PHP
<?php echo "Hello, World!"; ?>
Hello World in JavaScript
<!DOCTYPE HTML>
<html>
<body>
<script>
alert( 'Hello, world!' );
</script>
</body>
</html>
Hello World in C++
#include <iostream>
using namespace std;
int main()
{
cout << "Hello, World!";
return 0;
}
Hello World in Objective-C
#import <Foundation/Foundation.h>
int main (int argc, const char * argv[])
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
NSLog (@"Hello, World!");
[pool drain];
return 0;
}
Hello World in C#
using System;
namespace HelloWorld
{
class Hello
{
static void Main()
{
Console.WriteLine("Hello World!");
}
}
}
Hello World in Pascal
program Hello;
begin
writeln ('Hello, world!')
end.
Hello World in Perl
print "Hello, World!\n";
Hello World in Scala
object HelloWorld {
def main(args: Array[String]): Unit = {
println("Hello, World!")
}
}
Hello World in Delphi
program Helloworld;
{$APPTYPE CONSOLE}
uses sysutils;
begin
writeln('Hello, World!');
sleep(3000);
end.
Hello World in Ruby
puts "Hello, World!"
Hello World in R
> myString <- "Hello, World!" > print ( myString)
Hello World in F#
printfn "Hello, World!"
Hello World in Basic
PRINT "HELLO WORLD"
Hello World in Visual Basic .NET
Module Module1
Sub Main()
Console.WriteLine("Hello, World!")
End Sub
End Module
Hello World in Prolog
main() :- write("Hello, World!"), nl.
Hello World in Rust
fn main() {
println!("Hello, World!");
}
Hello World in Ada
with Ada.Text_IO;
procedure HelloWorld is
begin
Ada.Text_IO.Put_Line("Hello, World!");
end HelloWorld;
Hello World in Haskell
main = putStrLn "Hello, World!"
Hello World in Go
package main
import "fmt"
func main() {
fmt.Println("Hello, World!")
}
Hello World in Lisp
(format t "Hello, World!~%")
Hello World in MATLAB
disp('Hello, World!')
Hello World in Julia
println("Hello, World!")
Hello World in ABAP
REPORT first_programm. WRITE / 'Hello, World!'.
Hello World in Erlang
-module(prog).
-export([main/0]).
main() -> io:format("Hello, World!~n").
Hello World in Fortran
program Hello print *, "Hello, World!" end program Hello
Hello World in Assembler
.MODEL SMALL
.STACK 100h
.DATA
HelloMessage DB 'Hello World',13,10,'$'
.CODE
START:
mov ax,@data
mov ds,ax
mov ah,9
mov dx,OFFSET HelloMessage
int 21h
mov ah,4ch
int 21h
END START
Hello World in Arduino
const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
void setup() {
lcd.begin(16, 2);
lcd.print("Hello, World!");
}
void loop() {
lcd.setCursor(0, 1);
lcd.print(millis() / 1000);
}
Hello World in AutoIt
#include <MsgBoxConstants.au3> MsgBox($MB_OK, "Tutorial", "Hello World!")
Hello World in Smalltalk
Transcript show: 'Hello, world!'.
Hello World in 1С
Сообщить("Hello, World!");
Hello World in AppleScript
display dialog "Hello, World!"
Hello World in Actionscript
_root.createTextField("mytext",1,100,100,300,100);
mytext.multiline = true;
mytext.wordWrap = true;
mytext.border = false;
myformat = new TextFormat();
myformat.color = 0xff0000;
myformat.bullet = false;
myformat.underline = true;
mytext.text = "Hello, World!";
mytext.setTextFormat(myformat);
Hello World in CoffeeScript
alert "Hello, World!"
Hello World in Lua
print("Hello, World!")
Hello World in PowerShell
$strString = "Hello, World!" write-host $strString
Hello World in D
import std.stdio;
void main() {
writeln("Hello, World!");
}
