C

#include<stdio.h>

int main(void) {
    printf("Hello World\n");
    return 0;
}

C++

#include<iostream>

int main() {
    std::cout << "Hello World" << std::endl;
    return 0;
}

Python

print("Hello World")

Golang

package main

import "fmt"

func main() {
    fmt.Println("Hello World")
}

Rust

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