Top 20+ Java 8 Interview Questions & Answers [Most Important] | JavaTechie

In this Tutorial, i have provided the Most Important Java 8 Interview Questions & their Answers with Code Examples & Explanation:

Note : Demonstrate few programming question using java 8 stream and CompletableFuture

📚Agenda 📚
(01:52) Functional Interface QA
(17:35) Lambda Expression QA
(32:20) Stream API QA
(01:08:07) CompletableFuture QA

#javatechie #Java8 #InterviewQA

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[firozalam]

he did so hard to make us understand . Love your work bro . Your intention is to teach . Love you 1000 times. India should be proud of you.

[kshipra]

Wow..He sounds so genuine and Hard working ..hats off to his efforts !! Keep going !

[kapilausarmal]

I finally got it, the whole JDK 8 and its features with examples. Thank you so much bro for such an informative video. Please Keep it up ...!

[nithya]

Hi Javatechie,
I got a job with a 15lpa package.. it's just because of seeing your videos.. thankyou so much..

[shubhamverma]

I got exact questions in an interview on lambda, functional interface and Stream API. So relevant!🙂

[avirocksu]

This is a very detailed explanation for someone who just started to learn Java 8 and above. Very helpful! Waiting for the next video for Java 11 and above interview questions and concepts 😊

[sudhakarvenkatraman]

So much of information in one video to manipulate data in efficient manner using java 8. It's very helpful to brush up w.r.t to interview.

[kanchanam]

You are a great teacher..Thank you sir :) The way you tell "Dont worry" really makes us feel the topics to be easy and understandable.

[skasif]

I am wondering how can a teacher be so perfect in teaching… thanks sir 🙏

[srivasuprada]

Few videos explain only the presentation. But you switched in between presentation and practicality. That helps us a lot to understand clearly the concepts. Thank you :)

[saichaithvik]

Before Java 8, interfaces could have only abstract methods. The implementation of these methods has to be provided in a separate class. So, if a new method is to be added in an interface then its implementation code has to be provided in the class implementing the same interface.

To overcome this issue, Java 8 has introduced the concept of default methods which allow the interfaces to have methods with implementation without affecting the classes that implement the interface.

The default methods were introduced to provide backward comparability so that existing interfaces can use the lambda expressions without implementing the methods in the implementation class. Default methods are also known as defender methods or virtual extension methods.

[kumarashish]

I become a fan of your explanation technique. The way you explain Lambda expression, I will never forget. Thank you and keep doing great work.

[kishorkumrbendi]

explained each question with best suitable examples.. well explained.. thanx a lot..

[ganeshr]

Really after seeing this video I got a crystal and clarity on Java 8 different methods ...and also watching other videos which is more help full to got the concept very clear ..thanks bro

[sudhanshusharma]

Thank you so much Sir for providing this resource, along with the complete paylist for Java/Springboot related questions, can't get such refined and explanatory resource anywhere.

[amithk]

Subscribed this channel with in 1k subscribers, happy to see your growth Mate. This helped me a lot. Thanks a lot for sharing the great and precise information. Keep going ❤

[harshitsingh]

"Why this guy is crying ?" 😂 Great Explanation .. Thank you !

[ashishsahu]

Crystal clear explanation as always. Thank you so much for such nice content with interesting explanation.

[saikrishnaanantula]

One doubt object class is parent of all java class but not parent of all interface so in that case how comparator inherited equals from object class.

[akankshabaisane]

Thx Sir, u have explained us many times so that v can get the concept.