Factory Design pattern Strategy Design pattern How to optimize sql query? LRU Cache Implementation
Java Backend Developer Interview Questions
518 java backend developer interview questions shared by candidates
Challenges you faced in the last project
A 100-minute Codility test. A 1-hour technical interview, A 90-minute technical second interview.
Q. Stair case problem Q. Sorted rotated array find maximum number. Q. Find max length of string from array of string using lambda. Q. Create list of common skills employee using key as skill using lambda
About projects i worked on in my previous company and why would you like to join our company?
How many threads are allowed in a thread pool?
immutable class and some follow-up questions related to it. after that, he questions about hashmap/hashset in deep, such as java 8 improvement. ai the end stream API questions
Generic OA questions. Make sure you know Java well!
Q: Overloading vs overriding? Q: Array vs ArrayList? Q: Hashset vs Hashmap? Q: Final, finalize, finally? Q: try-catch-finally? Q: Comparable vs comparator? Q: @PathParam vs @QueryParam? Q: How to pass header into method parameter of a GET endpoing? Q: API flow of custom exception handling? Q: How to write a GET endpoint? Q: What happens if user uses POST request for a GET endpoint?
dp,bitmasking,timecompletxity of coding problem and its space complexity
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