Lambda Expressions

Video #5: Treating Methods Like Objects in OOP

Video #6: Introducing Lambda Expressions

Video #7: Lambda Expression Examples

Video #8: Lambda as an Interface Type

Video #9: Lambda versus Interface Implementations
10 points
What is the most efficient form of a lambda expression that returns the sum of two variables "x", and "y" ?

10 points
Which of the following interfaces present in the standard library could be used to print a given string in a lambda expression?