Spring boot architecture
Senior Java Engineer Interview Questions
609 senior java engineer interview questions shared by candidates
Java pass by reference.
1. How Java memory works 2. What we get NullPointerException 3. Program to get factorial using iteration and recursion(discussion around edge case writing code etc.) 4. Explain Volatile, Synchronized & AtomicInteger 5. Why use kafka vs SQS 6. Performance optimization
in TR following ques asked: what is oop, encapsulation implement abstraction. then given codes to run in eclipse: 1.given a string print character followed by its frequency. 2. find max n min in given array 3. write table of 5 without loop
How Do you implement observer design pattern? Which design patterns do you know? Which are the collections interfaces? Given the fibonacci sequence array, sort the array with all the odd numbers at the begining and the non even numbers at the end. Don’t use any temp array.
Give a general overview of the Java memory model.
HashMap details
Implement Doubly Linked List.
Do you have any experience with Test-Driven Development (TDD)?
Junior questions Luke sync,transactions etc
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