Method main

functional/FunctionComposition.java:16–19

(String[] args)

    f3 = s -> s.toLowerCase(),
    f4 = f1.compose(f2).andThen(f3);
  public static void main(String[] args) {
    System.out.println(
      f4.apply("GO AFTER ALL AMBULANCES"));
  }
}
/* Output:
AFTER ALL AMBULANCES