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Technical Lead Java Interview Questions
511 technical lead java interview questions shared by candidates
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Core Java, memory model, classloaders, design patterns etc
1st Technical consist of question like:- 1.) Design pattern- GOF, Singleton, Builder, Factory ect. 2.) A simple java program used for sorting. 3.) Aggregation vs Composition 4.) Core java questions-- String pool, prepared statement, heap, Maps, Hashing. etc. Both Client Round was scenario based and only Multi Threading was asked:- It was tough for me as i had never worked on multi threading. Was of same level.
3rd Question was from Java Collections. Given a List of Object, which can contain Integers and also contain List which internally can again contain List to nth Level. Write a utility method which would return a flat List.
runtime polymorphism
Explain about your projects and work experience. What are the mistakes you have done in past at work? SOLID design principals
Coding challenge - writing a function
What are java 8 modules* (not java 8 features) Architecture of spring security
Only 2 technical rounds : 1. Stream API 2. Database connection with 2 Db in spring boot 3. Why spring boot ? 4. RequestMapping and jwt token 5. Comparator comparable 6. Map struct 7. DTO 8. System design : SAGA, strangler, Builder, SOLID principals
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