Senior Developer Java Interview Questions

What is the Java Reflection API? What is Compare and Swap (CAS) algorithm? What is JDBC API and when do we use it?

Design db schema for tree structure for fast search all childs any node

Senior Java Developer

Interviewed at ProcureTechStaff Consulting Services

2.8★

Oct 8, 2019

what is Overloading and Overriding?

Senior Java Developer

Interviewed at Artezio

3.9★

Dec 1, 2015

How work HashMap, difference between LinkedList and ArrayList

Sr. Java/J2EE Developer

Interviewed at FHLB New York

2.7★

Feb 18, 2023

Java related , multithreading, springboot, database, Collections, situational qtns

Senior Java Developer

Interviewed at CleverTech

4.2★

Sep 25, 2023

Codility challenge. I was required to complete the API code to make unit tests pass. Complete service layer classes, add methods to repository classes and fix controller methods.

Senior Java Developer

Interviewed at Software AG

4★

Feb 13, 2016

Java - Where to use Interfaces vs abstract class, Collections, Concurrency package, locks, implement thread safety without using synchronized block Data structures = Implement tower of Hanoi, some problems based on recursion.

Senior Java Developer

Interviewed at TeamApt

4.1★

Jan 15, 2022

Data structure, binary trees, work modalities

Senior Java Developer

Interviewed at Bellurbis Technologies

3.7★

Sep 20, 2022

Past Experience ,Projects , studies

Senior Java Software Developer

Interviewed at Gittigidiyor.com

4.1★

Mar 4, 2017

How do you increase the performance of MySQL database?