1. Tell me about yourself. 2. Role and contribution in projects. 3. Inheritance real time example and code 4. Polymorphism types and code 5. Exception handling 6. static, final, finally 7. abstract class and method 8. Runtime polymorphism 9. Calling parent class method from child class 10. Steel ball puzzle (find defective ball from 9 balls) 11. 2 rope burning puzzle (calculate time 45 min)
The questions were on Java, problem-solving algorithms, Microservices, SpringBoot, Design Patterns and SQL queries.
Binary tree traversal, implement a map structure, design a system for data collection regarding to Spotify statistics, etc.
Topological sort , Printing numbers in sequence using multiple threads . Linked list problems like detecting loop
Pretty much standard pl/sql questions in the interview. Guy was really polite and cool. He made me totally comfortable first and asked me not to give a damn for syntax or anything. Just wanted to know the basic concepts. Written test was although quite tricky and lengthy. Took quite some time to finish. Manager round was again more on judging the interpersonal & communication skills I guess.
In depth knowledge of basics
Sort the Interger Array on the basis of occurrences in such away element with max occurrences should come first and so on and if occurrences are same for elements then those should be sorted in ascending order. * Use Java 8 Stream API
Out of 4 technical rounds, they cover almost all the technologies mentioned in CV. One round of interview was just about java.util.concurrent package.
networking protocols ,tcp-ip model, udp and linux commands
1. How does Hash map works internally. 2. Explain collision scenario. 3. Changes in Hash map in Java 8 4. What is load factor in Hash Map 5. How do you change the load factor.
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