Agenda for this blog is to explore Java 8 features which was a big update that changed the way developer writes code. It helps developer to write clean and concise code, improved abstraction and enhance their productivity. Lets start with a brief introduction of each update which was added in java 1.8 and then go deepr to undertand the concept along with the code example.
1: Lambda Expression (λ)
The Main Objective of Lambda Expression is to bring benefits of functional programming into Java. Lambda expressions are similar to methods but without name.
👉Lambda Expression is just an anonymous (nameless) function. That means the function which doesn’t have the name, return type and access modifiers.
👉Lambda Expression also known as anonymous functions or closures.
2: Functional Interfaces
An interface that contains only one abstract method is known as Functional Interface. Because, exactly only one abstract method is mandatary to mark an Interface as as a Functional Interface & due to this naure it is also known as a Single Abstract Method interface (SAM).
3: Default methods in Interface
4: Predicates
Predicate is a functional interface which represents a boolean-valued function of one argument and present in java.util.function. It is used to test objects whether they satisfy certain conditions or not (true or false).
5: Consumer
6: Functions
7: Double Colon( : : ) Operator
8: Stream API
9: Date and Time API
