In L2 round he asked me to create whole springboot project in notepad with repo service controller layer and methods. When I was writing he just left by giving a closure statement . Pathetic!! L1 round went well. He asked few java8 related questions, multithreading concepts, few scenario based questions and one coding question
[2nd Stage, 2h+] JIT, JVM, async, synchronization, multithreading, error handling, debugging, sorting algo, DB modeling and queries, tuning, tree comparisons, digital root logic, app stack overview, SOLID application, ACID properties, networking, hashing, DB, request life cycle etc.
Create a REST API using Spring framewoks
DataStructure and algorithm. Java and rest web-service related question
what makes String class immutable in java
Indexing, caching, java collection complexity , your written code complexity, optimising your code.
What to do when Database query is slow
Inheritance, OOPS, Polymorphism, coding questions
Asked me to run the web app and explain it's work flow.
Java Exceptions, collections, logical question such as Bulls and Cows
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