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Spring Boot Interview Mastery 🔥 | Question & Answer Guide for Developers | Part-2 |

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#JavaTechie #SpringBoot #InterviewQ&A
In this comprehensive guide, we'll explore the most common Spring Boot interview questions and provide detailed answers and explanations. You'll gain insights into crucial Spring Boot concepts, best practices, and tips to help you excel in your interviews.
Spring Boot Interview Mastery PART 1
👉 - • Spring Boot Interview ...
Annotations cheat sheet :
👉 • Interview QA | 40+ Spr...
⏰ Timestamps
1:08 - Can you Explain the purpose of Stereotype annotations in the spring framework
6:32 - How can you define bean in spring framework?
9:07 - What is dependency Injection?
16:17 - How many ways we can perform dependency injection in Spring or Spring Boot?
20:49 - Where you would choose to use setter injection over constructor injection, and vice versa
32:00 - Can you provide an example of a real world use case where @PostConstruct is particularly useful
35:50 - How can we dynamically load values in a Spring Boot application?
42:43 - Can you explain the key differences between yaml and properties file, and in what scenario you might prefer one format over the other?
48:29 - What is the difference between yml & yaml?
50:10 - If I will configure same values in both properties then which value will be loaded in Spring Boot or who will load first propeties or yml file?
56:20 - How to load external properties in Spring Boot?
59:23 - How map or bind config properties to java object?
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29 авг 2024

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Комментарии : 163

@CodingMachine007 7 месяцев назад

1:08 - Can you Explain the purpose of Stereotype annotations in the spring framework 6:32 - How can you define bean in spring framework? 9:07 - What is dependency Injection? 16:17 - How many ways we can perform dependency injection in Spring or Spring Boot? 20:49 - Where you would choose to use setter injection over constructor injection, and vice versa(v.imp) 32:00 - Can you provide an example of a real world use case where @PostConstruct is particularly useful 35:50 - How can we dynamically load values in a Spring Boot application? 42:43 - Can you explain the key differences between yaml and properties file, and in what scenario you might prefer one format over the other? 48:29 - What is the difference between yml & yaml? 50:10 - If I will configure same values in both properties then which value will be loaded in Spring Boot or who will load first propeties or yml file? 56:20 - How to load external properties in Spring Boot? 59:23 - How map or bind config properties to java object?

@abhisheksingh-np8yi 7 месяцев назад

🗿

@abhishekgowlikar 7 месяцев назад

You are Master in Java related Technologies, learned lot of internals, Hats off.

@balkrishnatalke7484 4 месяца назад

Basant Bhai, I follow your videos since long time. I want to say this you are just superb in what to explain or demonstrate.

@Javatechie 4 месяца назад

Thank you buddy 😊

@sspeddiraju8625 2 месяца назад

Your videos are helping us both in interviews and from learning perspective

@Ranjan-xc5nl 3 месяца назад

Lot of in depth knowledge on subject as always, thank you.

@MunnaKumar-uw3bf 5 месяцев назад

Thanks sir, for your expiation in depth. You are my best teacher in Java related Technologies.🙏🙏🙏🙏🙏🙏

@manirsg9641 11 месяцев назад

Thanks. Solving DSA once in a week will help a lot

@sandeepjaiswar4990 19 дней назад

diving deep for each concept makes this series special Thanku Sir great job

@pallaviv4494 4 месяца назад

learning so much from your channel.. thank you so much

@maxhijacker 11 месяцев назад

Regarding the constructor DI 18:10 , it's incorrect, you can skip @Autowired if you have only one constructor, not dependency. So it's often people use Lombok's @AllArgsConstructor and that's it:) Also it's worth mentioning that constructor DI is recommended in most of cases because you can define dependencies as final, which is good approach:)

@Javatechie 11 месяцев назад

No check in your system if you have only one dependency then in constructor injection annotations not required.

@maxhijacker 11 месяцев назад

@@Javatechie "As of Spring Framework 4.3, an @Autowired annotation on such a constructor is no longer necessary if the target bean only defines one constructor to begin with. However, if several constructors are available, at least one must be annotated to teach the container which one to use."

@Javatechie 11 месяцев назад

Agree. I miss confused 🤔. Thanks man

@maxhijacker 11 месяцев назад

@@Javatechie no problem, it happens :)

@orangefield2308 10 месяцев назад

hi I have seen a lot of videos regarding Java Interviews. This one really covers precise interview questions, and what is needed exactly. Thanks, I hope you make more videos@@Javatechie

@aabhasjain96 5 месяцев назад

Hello Sir ji, one suggestion please add 0:00 timestamp at the start so that it will create the Chapters, also it will start showing in the view screen. Thanks 🙌

@Javatechie 5 месяцев назад

Thanks for your suggestions buddy i am not aware about this feature. Will do that

@Daily_Explorer18 5 месяцев назад

Watched all 5 parts ,, Thank you so much for all these..

@xxyz9819 4 месяца назад

you're a lifesaver brother. ♥ from the Philippines

@Maneeshce2007 11 месяцев назад

@Java Techie , This series of interview questions are very helpful. Recently i was asked 2 questions from your interview part 1 series.Keep up the good job.

@gopisambasivarao5282 11 месяцев назад

Appreciate Basant your efforts. Every week waiting for your videos. God bless you. 🙂🙏

@arnabchowdhury4892 11 месяцев назад

@JavaTechie Please make vido ons java 8 advanced interview quetions e.g Finding duplicate elements , Finding first repeating substring "java" in string e.g "javaforjava" and finding fibonacci series etc and more 10 examples of java8 exmaples code using groupBy , taken etc

@Javatechie 11 месяцев назад

Hello arnab have you checked this video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-1Ps5F1PU72M.html

@arnabchowdhury4892 11 месяцев назад

@@Javatechie is there any videos on ArrayBlocking qeue or Priority queue to implememt producer consumer pattern asynchronusly As i am working on problem to read 2 miilion message from a messagong qeuue and process it. But there is lag in reading such high volume of data from queue. Hence trying implement solution like producer comsumet pattern.if one task reads message from any incomming active mq and put in blocking queue and consumer task reads thec blocking queue to process the message

@ankuragarwal8990 11 месяцев назад

@@arnabchowdhury4892 you can try Kafka once may be that can solve your problem.

@gaganverma7304 11 месяцев назад

Best Java springboot tutorials buddy help a lot to prepare for interview keep bringing good stuff thnx

@thollaigalthodarum3381 11 месяцев назад

Hi everyone...welcome to java techie..Waiting for this intro everytime..Thanks bro for your clear cut videos..It's straight to the point..Thank you so much...

@Javatechie 11 месяцев назад

😜 thank you buddy

@ashimasingh5031 5 месяцев назад

Amazing Amazing demonstrations, you Rock !!

@shahrzadkhorrami8542 11 месяцев назад

Man I love all your videos, thanks 🙏🙏🙏❤

@punyabikash3624 4 месяца назад

You are great sir among all other channels keep up good work very helpful for us your hardwork worth a lot sir...👍👍

@teacup1431 9 месяцев назад

Thanku sir.. god bless you

@laxmi9828 11 месяцев назад

Very useful information thanks for making easy,hats off

@suvarnaChaganti 2 месяца назад

Superb video

@Daily_Explorer18 5 месяцев назад

Really awesome video

@dheerajreddy9790 11 месяцев назад

Thank you sir i will help lot for my interview and we are expecting microservices interview questions soon

@Javatechie 11 месяцев назад

Yes I will

@mentalHealingPurple-mo8fn 4 месяца назад

Immutable does not mean that you cannot modify it. It means it is like a string class. You weren't able to see it because it was private variable. Final keyword makes unmodifiable variables.

@Javatechie 4 месяца назад

Hello buddy, I am not sure what context you are talking about but immutable means can't be modified as per java official documentation but when you are comparing it to string it's different where in string when you will modify it will create a new instance

@pradyumnabisoyi4097 11 месяцев назад

Nice video. Please share a video link for Kafka interview questions and answers. Thank you

@riccardobruno8404 3 месяца назад

thanks for all the great job you've done bro ! I noticed one thing that might not be correct, and it's this one: afaik application.yml is loaded first and then application.properties, we see the values of "20" because the value from yml (25)it's been overridden by the value in the properties file(20), what do you think ? Thanks for all the great work you do for all of us! : )

@Javatechie 3 месяца назад

That's absolutely correct. In video with debugging I have shown yml is loading first before properties

@mayurb6088 7 месяцев назад

Thanks for this

@Jawwad124 8 месяцев назад

Overall good and very helpful. But @Lazy annotation can be used on constructor to solve circular dependency, not a good argument to use setter over constructor.

@anandkushwaha-hf5nb 5 месяцев назад

Appreciate your efforts, thanks Basant for serve it simple 👍

@jagrutipatil1020 11 месяцев назад

You are the best sir....🙏🙂

@xredgx 5 месяцев назад

@Configuration is already a component. So annotating DataSourceConfig class with @Component is useless.

@shitalkarande9522 11 месяцев назад

Thanks for the detailed explanation.

@apoorvnigam2282 11 месяцев назад

Basant..you are great bro!! 🙏🏻

@niharikab5202 10 месяцев назад

Sir, i watched your videos 2 years before. Joined new company...Now again i am here for a change.

@Javatechie 10 месяцев назад

All the best for your coming interview

@akhilaraj443 2 месяца назад

Your videos really help a lot

@Priyanshu_Dhar 4 месяца назад

Thankyou so much sir ❤

@rajeshpamuri9760 3 месяца назад

Super 👌

@DonCachuela22 10 месяцев назад

bro thank you for the effort, this is very helpful.

@naveenrajukopparthi3046 11 месяцев назад

Really Thank you sir.

@Vithal_Nivargi 11 месяцев назад

Expecting microservices interview questions series experience level. Thanks 🙏

@govindkamath9931 2 месяца назад

Superb Thank You!

@Phoenix-od2bp 11 месяцев назад

Perfect timing, I am half way through the first one. While I am enjoying all the learning and things that have been taken for granted without much thought about how the magic happens, seriously wondering if these questions are asked in interviews. I mostly see programming, DS&Algo and design questions in most interviews.

@itsnarahari 11 месяцев назад

It's very clear

@MASTANSHAREEFSHAIK 7 месяцев назад

Thanks!

@Javatechie 7 месяцев назад

Thank you buddy for your support 😊

@evsatyamblog4218 11 месяцев назад

Basant bhai mu tamara pura bada fan ❤❤

@Javatechie 11 месяцев назад

Bhagya more 😊. Keep learning bro

@VinayQ- 11 месяцев назад

Thank you sir

@chillavenkatesh6097 11 месяцев назад

Thank you man

@andreykolobov89 11 месяцев назад

Thanks you

@sayantanghosh8245 11 месяцев назад

Weekend shorted . Awesome JT ❤

@sayantanghosh8245 11 месяцев назад

Please also cover the microservice interview question and Kafka too.

@Javatechie 11 месяцев назад

Sure i will

@letsgrabit28 8 месяцев назад

Even if properties loads first why yaml value doesn't get override ?

@Javatechie 8 месяцев назад

Why will it override buddy? I have explained it with debugging please check and validate

@shefeeqpm5413 18 дней назад

we can resolve circular dependency even with constructor injection also right? just we need to add @Lazy annotation in front of constructor param.

@yogendrasingh-nz3pw 11 месяцев назад

Basant always do postmartum of topic . Great boss . I m learning a lot from your videos .thanks sir.

@sravyaganji3199 2 месяца назад

If yml file is loaded after the property file then, will the values not override by yml file? For example: { Int a = 10; a=5; } Then a will store 5 right?

@praveenkrmehta4035 11 месяцев назад

Glad you have published second one so fast........ happy learning 🤗

@maheshr7827 11 месяцев назад

Zero to hero Core Java interview questions,can we expect more than 150 questions

@yagnaa 11 месяцев назад

Bhai one video on socket connections and webhooks please (explanation and practice) both

@maheshr7827 6 месяцев назад

Microservices interview question ....we are expected coming soon sir

@tejach3087 11 месяцев назад

If we place the @Component annotation on top of the controller class, request dispatch won't happen. I mean we have to place the @RestController annotation on top of the controller class. So shuffle of annotations vice versa won't work here. Correct me if i am wrong😊

@Javatechie 11 месяцев назад

I don't think it will give any error but still I will cross verify once and update you

@faixan13 11 месяцев назад

yes, the dispatcherServlet will look for @RestController otherwise it will act as normal Component class like other.

@saravanakumars52 11 месяцев назад

@RequestMapping is important to handle the request from the front controller ie dispatcher servelet, so if shuffle the annotation also it will work if you handle the web request with @ requestmapping

@Javatechie 11 месяцев назад

Awesome man let me give it a try and thank you all for calling it out . Really appreciate it 😊

@faixan13 11 месяцев назад

@@saravanakumars52 so you are saying that If I have a class with @Component and @RequestMapping ("/test"). it will work without @controller and @RestController ? No, it will not work, request will not land on controller, if there is no controller annotation

@authiskumar 9 месяцев назад

With Construstor Injection along with @lazy annotation also we can resolve circular dependency issue . Am I correct?

@Javatechie 9 месяцев назад

Yes

@shailendraraj4951 11 месяцев назад

Your vedios always at the par. Contents new unique and elaborate every time.

@dubalathrinath4193 8 месяцев назад

Dear Java Techie, Can you please share where did you explained the Bean Life cycle?

@dhanrajchavan4356 11 месяцев назад

sir also make short videos

@Javatechie 11 месяцев назад

Yes i will do it buddy

@naseem3813 11 месяцев назад

what are the market conditions guys?

@shaikhussain567 11 месяцев назад

Basant you beauty.. awesome bro❤

@ngawangyeshi9930 11 месяцев назад

Your concepts are always very helpful, please can you make a video step by step how spring boot consume stored procedure. Thanks

@Javatechie 11 месяцев назад

I have already done video on stored procedure please search in channel

@tomsheldonworld 11 месяцев назад

continue this series man. its awesome

@RN-jo8zt 11 месяцев назад

Great can you pls make video about Microservice question series

@faizanakhtar9954 8 месяцев назад

15:35 you mentioned @Repository is optional that's incorrect we have to provide @Component or it's child interface which is mandatory to bean initialization in spring context. Correct me if am wrong.

@Javatechie 8 месяцев назад

Remove @Repository annotations and try once

@faizanakhtar9954 8 месяцев назад

@@Javatechie I have tried but getting exceptions stated not able to create bean for that class.

@Javatechie 8 месяцев назад

@@faizanakhtar9954 please check all my crud operation specific video. If you observed I haven't used @Repository annotations but it's working

@krishnamohan5771 8 месяцев назад

i think he meant for repository impl clasess @Repository is optional, but not for interface

@tabishrizwan9137 11 месяцев назад

Hi @JavaTechie when we are shuffling stereotype annotation in controller class it's not working either we can give @Controller+@ResponseBody or @RestController apart from that it's not working when we are sending request it's throwing Whitelabel Error Page error.

@user-mi8wo4ye3w 9 месяцев назад

Very good explanation Sir!! great thank you! Please also post similar kind of java and java8 interview questions. Im seriously looking for them.

@Javatechie 9 месяцев назад

It's already there buddy please check

@hanishchemuduru2143 11 месяцев назад

Great Content👍 Appreciation for your efforts

@manjunathasathyanarayana1508 10 месяцев назад

Nice very useful. Appreciate the content. please do Microservice service series

@ayushishukla1170 6 месяцев назад

thankyou sir :)

@SandeepJoshi-fy2tp 11 месяцев назад

Sir please ans this chatgpt is saying we can resolve CD through constructor also "One of the most straightforward ways to resolve circular dependencies is to use constructor injection." - This statement is true. Constructor injection can help resolve circular dependencies in Spring when combined with other techniques, such as using @Autowired on constructors and having Spring manage the bean lifecycle. Constructor injection provides a clear way to express dependencies between beans and can help Spring detect and handle circular dependencies more effectively. "Constructor injection alone cannot resolve circular dependencies in Spring." - This statement is also true. Constructor injection alone is not sufficient to resolve circular dependencies because Spring needs to create an instance of one of the beans to construct the other. Without additional mechanisms or configurations (such as using @Autowired on setters, @Lazy, or @DependsOn), circular dependencies cannot be broken with constructor injection alone. Circular dependencies must be managed carefully to avoid runtime issues.

@SandeepJoshi-fy2tp 11 месяцев назад

and setter also not resolve dependency alone like we are using autowired or lazy here, if we are using lazy in setter why cant we use in constructor

@Javatechie 11 месяцев назад

Constructor injections always look into the constructor argument to find out whether it forms a circle or not but the setter method is not 🚫

@pratiknagarkar1444 11 месяцев назад

Hi , can you pls list down all questions in discription

@Javatechie 11 месяцев назад

Sure will update it tomorrow

@NikhilKumar-yf6qv 11 месяцев назад

Bro, Please do interview questions video for Java8

@rishabhsharma2024 7 месяцев назад

just Curios to know when i use @Lazy annotation on constructor injection ,also there cricular dependency was resolved but you said in video we can resolve circular dependency in constructor injection. can you explain? or reply

@Javatechie 7 месяцев назад

Is it ? let me check and update

@SapnaSharma-dy7rg 7 месяцев назад

I have a question about properties file and yaml file loading. Why the value of discountPrice is not overrided with value 25 if yaml file is loaded after properties file?

@pardeepsaini3844 11 месяцев назад

Hello dear please clear a doubt. In last 2 questions 21 and 22 you used spring.config.import, you also told it will look for external properties file but in 22 Ques you are using same application.properties file to load datasource values in DataSourceConfig class in this case will it not look into external properties file if not why? As you have added spring.config.import also in same application.properties file. Please ans

@pardeepsaini3844 11 месяцев назад

❤ Best 🎉

@Javatechie 11 месяцев назад

Hello pradeep, first it will check the prefix in external properties if not found then it will look into your application.properties or yml file .

@pardeepsaini3844 11 месяцев назад

@@Javatechie Great Thanks for Quick Reply... You are Really good Instructor.... God Bless You

@Javatechie 11 месяцев назад

@@pardeepsaini3844 thanks buddy

@kantamreddisiva7116 11 месяцев назад

I think @ Transactional annotation also sterio type annotation

@Javatechie 11 месяцев назад

No kanta

@BloodIsBat 10 месяцев назад

Hats off !!! to you man

@amarthyaseshu683 10 месяцев назад

👌

@sirishamandadapu2158 5 месяцев назад

Could you pls create online courses coaching that will help us sir pls

@ravigandhewar3240 6 месяцев назад

Hi I have tried @Restcontroller replaced with @Component annotation but not working, please explain why not working?

@Javatechie 6 месяцев назад

It won’t work and why I have already exploded in video please cross validate it

@atulkumarsinha8134 4 месяца назад

Stereotype annotation difference is not clear. There should be difference from @Component Anyways your content is awesome.

@kamranrahmatullah8004 11 месяцев назад

Everything is good, just do your mice better

@Javatechie 11 месяцев назад

Thank you for your suggestion, can you please mention what is the problem you are getting?

@kamranrahmatullah8004 11 месяцев назад

@@Javatechie It appears that the audio quality is low, and the speaker's voice is not very clear, requiring careful attention to understand. Your insights are appreciated! 🎙👍

@maheshr7827 11 месяцев назад

It's really helpful 🎉❤ Can we expect part 3?

@Javatechie 11 месяцев назад

Thanks sure i will

@senya-man9710 11 месяцев назад

Still fighting to finish part 1😅😂

@Javatechie 11 месяцев назад

😜

@RishiRajxtrim 11 месяцев назад

That's a positive Feedback. I'll revise closely.

@shilpasingla1739 11 месяцев назад

Can you start microservices interview questions series also

@Javatechie 11 месяцев назад

Yes this series will continue

@shilpasingla1739 10 месяцев назад

I was going through your "best practices video on spring boot" where you mentioned yml file will be loaded first rather than properties..here in this video, it's opposite..In this video ,you have shown code flow as well so properties file will be loaded first rather than yml

@Javatechie 10 месяцев назад

@shilpasingla1739 yes i apologise for my mistake in best practices video. Properties will load first than yml file

@itsnarahari 9 месяцев назад

Bro I shuffled the annotation by replacing @RestCOntroller with @Component annotation In Controller class and tried to hit the API but got the Whitelabel Error Page In chrome If I retained my changes back then It's working. As you said It does not matter

@Javatechie 9 месяцев назад

Yes it's my mistake in the controller or web layer we must need to use either @RestController or @Controller annotations . Even already i have announced the same in my RU-vid community which i believe you might have missed

@itsnarahari 9 месяцев назад

@@Javatechie except controller can we shuffle for others

@Javatechie 9 месяцев назад

Yes absolutely you can

@itsnarahari 9 месяцев назад

@@Javatechie Thanks will verify that also