import java.util.function.*;

public class LambdaExample {
 // note: this only works in Java 8
 
 static Function<Integer, Integer> inc(int x) {
 return y -> x+y;
 }
 
 static Function<Integer, Integer> mul(int x) {
 return y -> x*y;
 }

 public static void main(String[] args) {
 // bad style, generic erasure to get array
 Function[] fs = {inc(5), inc(10), mul(7), mul(2)};
 
 for (Function f : fs) 
 System.out.println(
 ((Function<Integer, Integer>)f).apply(100));
 }
}