Data structures questions asked in 2nd round. Binary tree, binary search tree , time complexity etc.
Senior Java Engineer Interview Questions
5,777 senior java engineer interview questions shared by candidates
Not get chance for 3rd and 4 th round
Java Core, Objects, Instances, Interfaces
Core java related questions on topics - collection, multithreading, flatmap etc. Also questions on springboot testing and some conceptual questions
1. TCP vs other protocols 2. Garbage Collection algorithms 3. Dependency Injection vs Inversion of Control 4. Java 8 vs Java 21/25 5. Heap and CPU cache 6. volatile keyword
Do you know how does HashSet work?
In technical interview, I am asked the questions below; 1. Code reviewing. how to write clean code. 2. methodology, agile, how do you implement agile, which tools do you employ, deployment process etc. 3. OOP questions (inheritance, IS A, HAS A etc.), SOLID principles 4. which design patterns did you implement before 5. some Java specific questions about heap, memory JVM etc. 6. Collections API. HashMap, importance of hashCode and equals methods, how hashmap put a new entry and gets it (buckets) 7. Coding challenge: Given a non-negative number represented as an array of digits, add 1 to the number ( increment the number represented by the digits ). The digits are stored such that the most significant digit is first element of array.
Questions for the topics indicated in your CV, Java Core questions, SQL questions and so on.
Java System design Spring CI/CD
Have you worked on CI/CD? Have you worked on Kafka? Which AWS services you have worked on? Have you written any tests?
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