Skip to contentSkip to footer

Java Full Stack Developer Interview Questions

Salaries
Interviews

1,047 java full stack developer interview questions shared by candidates

Most of the questions were based on core Java concepts i.e Inheritance, Abstraction, Encapsulation and Polymorphism. One or two questions were on DSA. Those questions were based on simple array manipulation and tree. In the question on tree, the interviewer added new points and I had to change the code according to that. But, all the interviewers were helpful. One or two questions were also on my projects.
avatar

Full Stack Engineer (Java)

Interviewed at Whatfix

3.4★
Jan 2, 2019

Most of the questions were based on core Java concepts i.e Inheritance, Abstraction, Encapsulation and Polymorphism. One or two questions were on DSA. Those questions were based on simple array manipulation and tree. In the question on tree, the interviewer added new points and I had to change the code according to that. But, all the interviewers were helpful. One or two questions were also on my projects.

Consisted 4 rounds 1st round on paper consisted mcqs and theory question and a coding question 2nd round 3 Sql queries 3 rd round face to face interview regarding concepts of java, oops 4 th round on Springboot task based and theoretical questioning of each command
avatar

Full Stack Java Developer

Interviewed at Inspiron Labs

3.4★
Nov 15, 2025

Consisted 4 rounds 1st round on paper consisted mcqs and theory question and a coding question 2nd round 3 Sql queries 3 rd round face to face interview regarding concepts of java, oops 4 th round on Springboot task based and theoretical questioning of each command

1. Architecture of latest project that i worked (keep it crisp and clean) 2. Sql problem statement 3. To define a java class to remove duplicate data with respect to users preferably like collections and string something like set 4. Core concepts of agile, git commands Good to have knowledge on data structures but not mandator
avatar

Full Stack Java Developer

Interviewed at Deloitte

3.8★
Feb 27, 2025

1. Architecture of latest project that i worked (keep it crisp and clean) 2. Sql problem statement 3. To define a java class to remove duplicate data with respect to users preferably like collections and string something like set 4. Core concepts of agile, git commands Good to have knowledge on data structures but not mandator

Viewing 821 - 830 interview questions

Glassdoor has 1,047 interview questions and reports from Java full stack developer interviews. Prepare for your interview. Get hired. Love your job.