Java Software Developer Interview Questions

3,069 java software developer interview questions shared by candidates

Round 1: 1. Host name port number resolution https://cloud.google.com/load-balancing/docs/url-map-concepts 2. Design calculator for different consumers(Solar, Scientific, Astronomical), with code reuse 3. Code for minimum difference between the values of any two different nodes in the Binary Search tree. 4. Insert, Delete and Get in O(1) 5. SQL to select all employees along with department name, from Employee table and Department Table. 6. A/B Testing 7. Recently work experience Round 2 1. Design a jigsaw puzzle 2. Print Tree common nodes
Oct 9, 2020

Round 1: 1. Host name port number resolution https://cloud.google.com/load-balancing/docs/url-map-concepts 2. Design calculator for different consumers(Solar, Scientific, Astronomical), with code reuse 3. Code for minimum difference between the values of any two different nodes in the Binary Search tree. 4. Insert, Delete and Get in O(1) 5. SQL to select all employees along with department name, from Employee table and Department Table. 6. A/B Testing 7. Recently work experience Round 2 1. Design a jigsaw puzzle 2. Print Tree common nodes

basics on DS, oops, multithreading, springboot, restAPI, exceptions logic to find if number is odd or even without using * , / and + inheritance concept in depth - same parent class variables, methods used in child class - method overriding through inheritance all cases. internal working of hashMap, Hashset. Stringpool memory concepts. garbage collector, JVM.. platform independency.
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Software Engineer - Java Developer

Interviewed at FIS

3.5
Jul 22, 2021

basics on DS, oops, multithreading, springboot, restAPI, exceptions logic to find if number is odd or even without using * , / and + inheritance concept in depth - same parent class variables, methods used in child class - method overriding through inheritance all cases. internal working of hashMap, Hashset. Stringpool memory concepts. garbage collector, JVM.. platform independency.

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