Junior Java Engineer Interview Questions

Java Jr developer

Interviewed at Oracle

3.5★

Apr 28, 2021

Mysql

Junior Java Developer

Interviewed at Gateway Group (India)

3.5★

Nov 9, 2025

Star Pattern (Pyramid or Triangle)

Junior Java Developer

Interviewed at Cognizant

3.6★

Nov 24, 2024

What is the difference between String Buffer and String Builder?

Junior Java Developer

Interviewed at Société Générale

3.7★

Nov 16, 2023

2 coding challenges and basic OOP and networking open questions

Junior Java Developer

Interviewed at Wissen Infotech

3.8★

Sep 2, 2023

Collection framework, String and OOPS from core java

Junior Java Developer

Interviewed at Jaggaer

4★

Jun 19, 2016

Small code sample to look at. Find everything logically and syntactically wrong with it. Abstract class versus interface. Give example of a common library using an interface. Why use an interface instead of an abstract class? How does an abstract class make its objects define their own method specification? Static versus non-static. How does a non-static object access static data and methods? Private vs. Protected vs. Public

Junior Java Developer

Interviewed at The Customization Group

4.2★

Apr 1, 2021

1. Core java 2. Methodologies especially scrum 3. Few knowledge on Cloud and cyber security is a plus bonus

Junior Java Developer

Interviewed at GFT Technologies

4.1★

Feb 3, 2021

don't remember. Some simple algorithm.

Junior Java Developer

Interviewed at Interactive Brokers

3.4★

Oct 28, 2018

What are the pillars of object oriented programming?

Junior Java Developer

Interviewed at Globant

3.6★

May 16, 2021

java generics , collection, rest api,