Java Backend Developer Interview Questions

Java Backend Developer/Engineer

Interviewed at Bounteous x Accolite

3.3★

Mar 7, 2025

How many threads are allowed in a thread pool?

Java Backend Intern

Interviewed at Canva

3.9★

Sep 4, 2023

Generic OA questions. Make sure you know Java well!

Java Backend Developer/Engineer

Interviewed at Hummingbird Web Solutions

4.1★

Oct 14, 2025

dp,bitmasking,timecompletxity of coding problem and its space complexity

Java Backend Developer ()

Interviewed at Symphony Talent

3.3★

Jul 18, 2021

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?

Senior Backend Engineer-Java

Interviewed at Glovo

3.3★

Apr 13, 2024

Do you mind staying at the company to support the last deployment?

Senior Backend Engineer-Java

Interviewed at Glovo

3.3★

Apr 13, 2024

What are you doing in the current company?

Desarrollador Backend Java

Interviewed at PA Consulting

3.7★

Mar 11, 2024

Me preguntaron sobre mis estudios

Java Backend Developer/Engineer

Interviewed at NLB Services

4.2★

Oct 27, 2024

About projects i worked on in my previous company and why would you like to join our company?

Backend Developer (Java)

Interviewed at Freenow by Lyft

3.6★

Oct 4, 2019

What is the challenges of migrating to microservices architecture ?

Backend Java Engineer

Interviewed at Verizon

3.6★

Feb 21, 2023

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