Lambda Expressions

HelloWorld.java

//Executed at http://www.tutorialspoint.com/compile_java8_online.php
public class HelloWorld{

     public static void main(String []args){
        System.out.println("Hello World");
        java.util.function.Function<Integer,Integer> times2 = (Integer x) -> 2*x;
        java.util.function.Function<Integer,java.util.function.Function<Integer,Integer>> timesN = x -> y -> x * y;
        System.out.println(times2.apply(2));
        System.out.println(timesN.apply(2).apply(3));
     }
}