Print your name 1000 times without looping in Java

YCombinator.java

// Y = 𝜆𝑓.(𝜆𝑥.𝑓(𝑥𝑥))(𝜆𝑥.𝑓(𝑥𝑥))

public class YCombinator {

  public interface F<T,U> {
    Void apply(T name,U n);
  }

  public interface FF<T,U> {
    F<T,U> apply(F<T,U> f);
  }

  public interface YF<T,U> {
    F<T,U> apply(YF<T,U> yf);
  }

  static <T,U> F<T,U> Y(FF<T,U> ff) {
    YF<T,U> g = yf -> ff.apply((name, n) -> yf.apply(yf).apply(name,n));
    return g.apply(g);
  }

  public static void main(String... arguments) {

      F<String,Integer> printName1000x = Y(f -> (name, n) ->
              {
                if (n > 0) {
                  System.out.printf("%d. %s\n",n,name);
                  f.apply(name,n-1);
                }
                return null;
              });
      printName1000x.apply("Fathir",1000);
  }

}