Lambda Expression In Java 8

Published: 06 August 2022
on channel: TechFest Java

In this video we are discussing about Java 8 feature Lambda Expression.

Lambda expression are nothing but the implementation of abstract method defined in functional interfaces.

Functional Interfaces are those interfaces which have only one abstract method in it. And it may also be annotated as @FunctionalInterface.
To define functional interface annotation @FunctionalInterface is not mandatory , there is only one condition as it should have only one abstract method in it.

Lambda expressions are inline implementations of abstract method declare in functional interface.

In this video we are covering about different variant of lambda expression uses.
1. Without arguments
2. With one or more arguments.

We will looks examples of how to use lambda expressions and also how it make difference when implementation of abstract method in java 8 using lambda expression to other previous version implementation.

Lambda expression is most important feature of java 8 , it is highly asked feature in interviews also.

Other important features of java 8 can refer using below video links.

Optional Class:
   • Optional Class  Java 8 Feature

Static Method in interface:
   • Java 8 Static Method

Default Method in interface:
   • Java 8 feature default method

DateTime API:
   • Java 8 Feature  Date Time Api

Method Reference:
   • Java 8 Feature  Method Reference

Base 64:
   • Java8 Feature Base64

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