Top 10 spring boot Interview questions [most frequently asked java Interview questions and answers]

[@gsaravanan41]

02:45 How spring boot works internally? 06:40 What is a Spring boot starter? 07:42 What are the major starter dependencies of spring boot application? 11:03 Explain @SpringBootApplication annotation 11:53 What is an auto-configuration? 13:21 Can yOU explain Component Scan in Spring Boot? 15:08 Can you disable particular auto configuration in spring boot? Explain how? 16:08 What are the important annotation for Spring boot ? 19:51 Is this possible to change the port of Embedded Tomcat server in Spring boot? 20:48 Can we override or replace the Embedded Tomcat server in Spring Boot? 22:28 Can we disable the default web serve in the Spring Boot application?

[@nageswarareddykandikonda427]

Thank you for sharing. Because of you I learned 2 new points 1. How to disable default server 2. About server.port=0

[@JavaTechies]

Thank you for watching and sharing the feedback, it motivates.

[@akshaykothawade]

thanks..good work

[@JavaTechies]

Thanks

[@nikhilsingh3030]

That i want 😍😍😍 the hall important part you discussed in this video ,,,, thank you sooo much

[@JavaTechies]

You are welcome

[@samiksha7937]

Thank you Manasi.. you are doing great job..

[@akhileshkumar19]

Thanks, Mansi for explaining all the question.

[@yogendrasingh-nz3pw]

Ausome video .really helping for the people looking for springboot development.

[@kalyanachakravarthisada933]

Thank you for your additional work for us

[@saikrishna3755]

Nice explanation

[@JavaTechies]

Thank you so much

[@maheshprakashravi2984]

actually conversion of pojo to json is the responsibility of restcontroller right..how come will it come in autoconfiguration?

[@AshishKumar-re7nl]

@ResponseBody do that neeful basically, it's a part of @RestController itself and it work like getting the contents type from header and convert the Message according to that content type.

[@rexsam3134]

Mansi disadvantages of Spring boot needs to be revisited by you since I presume you have not have exposure to old ways of developing Java projects without Maven

[@JavaTechies]

Sure, you can please comment out those here.

[@rexsam3134]

Mansi before maven in spring boot in eclipse or idea we used to use ANT and configure all jars in the project build path and resolve dependencies with the correct jar versions after downloading them

[@GopalDas-sw6ym]

Hello Mam, Thanks so much sharing the Spring Boot interview questions and answers. I have learnt a lot and love you from my heart to getting some knowledge from u. Please also upload Rest API , Microservices and spring cloud interview questions and answers. It will help us a lot. Please mam....

[@JavaTechies]

Sure

[@pranoydas9654]

Suppose you have laptop, student and teacher beans in Spring IOC. Can we autowired laptop inside Student and Teacher class ?

[@JavaTechies]

Yes

[@pranoydas9654]

@@JavaTechies If yes, then how many laptop beans will be generated in spring IOC container ?

[@renu8721]

u r simply awesome.. thnks a lot..

[@jayantamahato2540]

Its really helpful very good work , Please make video on microservices , Kafka and docker part as well

[@JavaTechies]

Sure

[@kalyanachakravarthisada933]

Expecting more help from you , thank you

[@JavaTechies]

Sure, join the whatsapp group from about section, there are lots of experienced people and I my self help in this group or even you can comment here

[@abhimanyuchouhan1900]

@@JavaTechies Your whatsapp group is full, I want to join what to do?

[@JavaTechies]

Join telegram : t.me/joinchat/CM70mGCir7ZlNWQ1

[@msraju2326]

Very nice. If possible, please make a video on microservices too.

[@JavaTechies]

Sure

[@praveenreddy9454]

Hi ..well info thanks and if you can add the below question also it will helpful which is commonly asked question is how can we convert normal existing spring application framework to springboot application echo system..?

[@keseravinesh]

Hi Mansi thanks a lot for this channel. Really helping me a lot. Pls do more on technical interview questions and on core java concepts as well. Thank you 🙂

[@JavaTechies]

Sure

[@silambarasans9203]

Hi Mansi, Your videos are good and useful. Keep doing more videos. I have a suggestion that there is one more channel with similar name as "Java Techie" where yours is "Java Techies". If you wish you may make your channel name as unique.

[@JavaTechies]

Hi Thank you Silambarasan, i will think on the name try something unique

[@kapilrawal2604]

Waow... I must say you have covered spring boot very well... These are the questions I am expecting to be asked in interview and have just mentioned all of them in a single. Thank you for this vedio. Good information.

[@lingarajshebannavar5758]

Great collection of questions and best answers . Thank you so much

[@JavaTechies]

Thanks for watching

[@PrinceKumar-fk2np]

The way of explaining is very useful for me to clearing my all the doubt. Thanks for sharing with us.

[@JavaTechies]

welcome

[@rajeshpasupuleti8352]

Hi how you are getting these big company calls ?

[@praveenreddy9454]

I have small question .while downloading project from spring intilizer project we will just add what ever we want,how it will add extra dependencies which won't use and can you please clarify the same. .and few in-built dependencies will come like emebedded Tomcat and Jackson-object conversation dependencies but those definitely useful na...even if you don't want , you can exclude those also...so how exactly it is a disadvantage, please clarify me mansi..

[@subratkumarsahoo2631]

Whether you need it or not, it will download the basic dependencies those are specified in the pom. If the developer does not want some jars/dependencies, then s/he has to manually exclude them, which is an extra work for him/her. People usually skip this extra work, which adds extra dependencies.

[@sudarsan1731]

👌

[@manuj5246]

You can also find some real time interview question here: kzbin.info/www/bejne/gXXboXWrpZJ_e5Y

[@mohdshadab4844]

Q 1 :- if Your application not mark with @SpringBootApplication ? A :- No worry Spring Boot Application still launch . Q 2 :- @SpringBootApplication what it is doing ? A :- @Configuration @ComponenetsScan The both annotation replaced with @SpringBootApplication Q 3 :- who is responsible for launching SpringBoot Application ? A :- run() of Spring Application SpringApplication.run(MyBootApp.class, args); run() have 2 parameter, first one is name of the your boot main class name, second is args 1) MyBootApp.class = > Boot Main Class 2) Command Line Args which are coming to main() method. If we comments run() then it's not boot application anymore, it's just a simple java application. Q 4 :- what is use of @Configuration A :- its tell to container, in this class I have configure one bean with @Bean annotation, plz process that

[@sramuramus6447]

Madam this video fresher or experience

[@JavaTechies]

This contains basic questions useful to both freshers as well as experienced

[@conceptlearning1803]

Theory we all know. Give us practical example. Video is great but if interviewer goes deeper then it's of no use. Like in first question if interviewer asked Which was extra dependency you know which springboot added. How it's extra

[@JavaTechies]

I am very happy to answer any of you doubts, Java can help us do anything, so there is nothing called extra, but consider Lombok, swagger, devtools as some dependencies as extras