public class Main {

    public static void main(String args[]) throws IOException{
        Runtime.getRuntime().exec("cmd.exe /c \"start\"");

        // That one does not work
        Scanner sc = new Scanner(System.in);

        // That one does not work either
        System.out.println("-----------=<KALKULATOR NWD>=-----------");
        String test = sc.next();
        System.out.println(test + ", test");

        sc.close();
    }
}