// Hello1.cs
public class Hello1
{
public static void Main()
{
System.Console.WriteLine("Hello, World!");
}
}

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

#include <stdio.h>
int main(int argc, char *argv[]){
cout << "Hello world" << endl;
}

print("Hello world!")

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

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