HCL Technical Interview for Digital Engineer (JAVA) role

[u/Economy_Tie_5224]

I'm having HCLTech in-person Technical interview for the Digital Engineer (JAVA) role so what all things should i focus on and how should i prepare for it also my resume is having MERN Stack project and role is JAVA Full Stack and i have no knowledge of Springboot, react and all please help me and guide me how to prepare so that i can crack this interview successfully...

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[u/DDDDarky]

Preparing for technical interview is very much pointless, it's not like you are gonna miraculously learn something new in a short time before interview you otherwise couldn't learn within your trial period, you either have the expertise or you don't.

If you lied on your resume or applied to positions you are not qualified to that's your problem.

[u/notlikingcurrentjob]

How the hell did you even land the interview?

[u/Far-Bullfrog161]

You can definitely prepare in a useful way, even with only a few days. For a Java full stack role at a services company, the technical round usually leans heavily on core Java, so I'd put most of your time there: OOP principles with your own examples, String vs StringBuilder, equals and hashCode, the collections framework (ArrayList vs LinkedList, how a HashMap works inside), exceptions, and Java 8 features like streams and lambdas. Expect some SQL as well, especially joins and group by, and maybe writing a query on the spot. For Spring Boot, learn enough to explain dependency injection, the common annotations like @RestController, @Service and @Autowired, and how a request flows from controller to service to repository. Building one tiny REST endpoint yourself will make that far easier to talk about than reading alone. Be upfront that your project is MERN, then explain its architecture clearly and show how the same ideas, REST APIs, a database and separate layers, map onto Spring Boot. In my experience interviewers respond much better to clear fundamentals and honesty than to buzzwords. Good luck with it.

[u/Economy_Tie_5224 → u/Far-Bullfrog161]

Bro I'm done with interview but thanks for commenting and what all things u mentioned I got exactly same things in my real interview like OOPS,code for polymorphism, 1SQL query, 1 DSA, collections, Java 8 features, and few more ques I don't remember...also if you had commented few days back then definitely I would have been able to answer 100% of the ques asked by him which I was unable to answer like Collections, Java 8 features