Full Stack Java Developer Interview Questions

Full Stack Java Developer

Interviewed at Cognizant

3.1★

Jun 6, 2024

OOPS Concept 1 coding question swap two numbers without using third variable

Java Full Stack Developer

Interviewed at Cognizant

3.1★

Apr 18, 2025

java, oops, DOM, SQL, factorial, html, css, String , etc

Java Full Stack Developer

Interviewed at Société Générale

3.7★

Feb 13, 2023

string vs string builder ?

Full Stack Java Developer

Interviewed at Cognizant

3.1★

Apr 27, 2022

Qns on Interface Abstraction Collection Java generics Framework Database connectivity Given some code and asked to find the output

Full Stack Java Developer

Interviewed at Cognizant

3.1★

Oct 8, 2021

1)What are the pillars of object oriented programming 2) Write a program to showcase abstraction with encapsulation. 3) Difference between union and union all in DBMS

Java Full Stack Developer

Interviewed at Société Générale

3.7★

Jan 24, 2026

Java streams and other basics

Java Full Stack Developer

Interviewed at Oracle

3.5★

May 5, 2021

java 8

Java Full Stack Developer

Interviewed at Oracle

3.5★

May 5, 2021

angular

Full Stack Java Developer

Interviewed at Synechron

4.2★

Jun 8, 2021

stream api ->diference flatMap and map in stream explain try with resources Busy spinning Builder pattern Concurrent utilities different types class loaders Tree map -> how to add employee object other than put method How will treemap sort emplyee object

Java Full Stack Developer

Interviewed at Synechron

4.2★

Jun 25, 2021

Multithreading questions Collections Core java questions Programming questions