Can I write Lambda expressions for any Interface ?

                        Accenture Interview Question for 3+

Q. Can I write Lambda Expression for any Interface?

Ans :- Yes, you can use  lambda expressions in java for any interface that has only one abstract method. Such interfaces are known as functional interfaces, and lambda expressions provide a concise way to implement the abstract method of a function Interface

And we use “@FunctionalInterface” annotation for functional Interface.