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Hello World in 20 Programming Languages

· 2 min read
Phạm Quyết Thắng
Phạm Quyết Thắng
Fullstack developer

Certainly, each of us has started programming with the classic "Hello, World!" program. It's a small but crucial step that helps you get familiar with the basic syntax of a new programming language. In this article, let's explore how "Hello, World!" is written in 20 popular programming languages (Java, C#, Python, JavaScript, PHP, ...).

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1. Python:​

"Hello, world" Python​

print("Hello, World!")

2. Java​

"Hello, world" Java​

public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello, World!");
    }
}

3. JavaScript:​

"Hello, world" JavaScript​

console.log("Hello, World!");

4. C:​

"Hello, world" C​

#include <stdio.h>
int main() {
    printf("Hello, World!\n");
    return 0;
}

5. C++:​

"Hello, world" C++​

#include <iostream>
using namespace std;
int main() {
    cout << "Hello, World!" << endl;
    return 0;
}

6. C#:​

"Hello, world" C#​

using System;
class HelloWorld {
    static void Main() {
        Console.WriteLine("Hello, World!");
    }
}

7. Ruby:​

"Hello, world" Ruby​

puts "Hello, World!"

8. PHP:​

"Hello, world" PHP​

<?php
echo "Hello, World!";
?>

9. Swift:​

"Hello, world" Swift​

print("Hello, World!")

10. Go:​

"Hello, world" Go​

package main
import "fmt"
func main() {
    fmt.Println("Hello, World!")
}

11. Kotlin:​

"Hello, world" Kotlin​

fun main() {
    println("Hello, World!")
}

12. Rust:​

"Hello, world" Rust​

fn main() {
    println!("Hello, World!");
}

13. TypeScript:​

"Hello, world" TypeScript​

console.log("Hello, World!");

14. Dart:​

"Hello, world" Dart​

void main() {
  print("Hello, World!");
}

15. Objective-C:​

"Hello, world" Objective-C​

#import <Foundation/Foundation.h>
int main() {
    NSLog(@"Hello, World!");
    return 0;
}

16. Shell Script:​

"Hello, world" Shell Script​

echo "Hello, World!"

17. R:​

"Hello, world" R​

cat("Hello, World!\n")

18. Perl:​

"Hello, world" Perl​

print "Hello, World!\n";

19. Haskell:​

"Hello, world" Haskell​

main :: IO ()
main = putStrLn "Hello, World!"

20.Lua:​

"Hello, world" Lua​

print("Hello, World!")