Is Java Lambda expression is similar logic of Groovy closure?

Question

I\'m learning about Java 8 new feature Lambda expressions. This is my "HelloWorld" class using Lambda expression

public class LambdaHel         


        

Answer 1

Java's lambdas are closures as well. These are the same feature on an abstract level, but in detail and depending on exact version, Groovy may just be creating ad-hoc implementing classes, whereas Java 8 specifies a complete mechanism, consisting of lambda Metafactory, lambda factory, and a mechanism involving invokedynamic to acquire the lambda Metafactory.