Java 8 What is Lambda Expression & Functional Interface | Java 8 feature | With Example Program

Published: 29 May 2022
on channel: XAdmin

In this lecture, we will discuss about the lambda expression and Functional Interface in Java 8.
showing the lambda expression and Functional interface with example program
What is Lambda Expression
What is Functional Interface
What are features of Java 8
lambda expression Java 8
Interface
Functiona interface Java 8
Lambda Expression With Example
What is Lambda expression?
Lambda expression is a feature of Java which was included in Java SE 8. It provides a way to represent one method interface using an expression. It is very useful in collection library. It helps to iterate, filter and extract data from collection.

It is a Expression through which we can represent an Anonymous function

What is Anonymous :- it is Nameless or Unknown

What is Anonymous function:- A method , doest not have any name or modifier

Syntax : Parameter Expression Body
Functional Interface?
The interface who contains only one abstract method but can have miltiple default and static method is called functional inteface.

Example :
Runnable interface has :- only one run() method
Callable interface has :- only one call() method
Comparable interface has :- only one compareTo() method
Comparator interface has:- one compare() method

#lambda #java8
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