Willkommen

public class Welcome
{
    static void Main(string[] args)
    {
        Console.WriteLine("Welcome!");
    }
}
public class Welcome { 
    public static void main(String[] args) { 
        System.out.println("Welcome!"); 
    } 
}
int main(int argc, char *argv[]) 
{
    NSLog(@"Welcome!"); 
}
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    var window: UIWindow?
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        NSLog("Welcome!");
        return true
    }
    // ...
}
function welcome() { 
    console.log('Welcome!'); 
}
<html>
    <body> 
        <h1>Welcome!</h1>
    </body>
</html>
<?xml version="1.0" encoding="UTF-8">
<message>Welcome!</message>
{ message : "Welcome!" }
module Welcome where 
main :: IO () 
main = putStrLn "Welcome!"