Build a REST API using Java.
Java Software Developer Interview Questions
4,192 java software developer interview questions shared by candidates
Q: Talk about Just-in-time compilation. Q: Differences between Barrier and CountDownLatch Q: Talk about Consistent hash. Q: Talk about different IO models.
I didnt pass the quiz test
basic OOP, SOLID, design patterns, spring questions
Technical challenges faces in previous projects
Implicit object of jsp. write any five java package.
tell me about yourself? how tcp connection will be built?
Phone interview questions: What are the methods of an Object? How do you call a constructor? How do you call Super? What is a default method? Difference between abstract and interface? If you Have an Elephant class and an Animal class, and you call one as the other which one do you need to cast and vice versa? Code reading questions: Can you tell whether the class extended is an abstract class or an interface? What is a Singleton ? What is a Semaphore? What is a socket? What is a throwable? Does the finally block in the try catch blocks execute (the try block returned if a socket was reachable)? System Design questions: You can pick an option out of 3 options, Design a pet care shop, a Car dealership, a card game. The Care Dealership had automobiles with features. And the Dealership needed to keep track of cars sold, and registered as well as offer features.
I was asked about oops concepts a lot
L1: 1.static binding vs dynamic binding 2.write singleton class 3. If we have list in singleton class how we avoid accessing it outside the class. 4. how to make singleton synchronized 5.java 8 - functional interface and stream API 6. write a program in java 8 max sal of employee 7.@variable & @modifier in JPA 8. why we use marker interface 9. how spring security works, authentication vs authorization 10. what is serialization? why we use is 11. what is transient 12. what is marker interface 13.internal implementation of hashset. L2: 1.aggregation in mongodb 2. mongodb groupby query 3. JPA integration with mongodb 4.microservice architecture 5. kafka producer consumer problem 6. project description. 7. agile methodology 8. Project build related question. 9 . Development process related questions
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