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Unacademy Fullstack Java Developer Interview Questions and Answers

Updated 1 Mar 2025

Unacademy Fullstack Java Developer Interview Experiences

1 interview found

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I was interviewed in Feb 2025.

Round 1 - Coding Test 

To develop a comprehensive full-stack digital marketing application.

Round 2 - Technical 

(2 Questions)

  • Q1. What are the reasons that classify Java as an object-oriented programming language?
  • Ans. 

    Java is classified as an object-oriented programming language due to its key features like classes, objects, inheritance, and polymorphism.

    • Java supports the concept of classes and objects, allowing for encapsulation of data and behavior.

    • Inheritance is supported in Java, enabling the creation of new classes based on existing ones.

    • Polymorphism is a key feature in Java, allowing objects to be treated as instances of their...

  • Answered by AI
  • Q2. What are the different types of errors in Java?
  • Ans. 

    Different types of errors in Java include syntax errors, runtime errors, and logical errors.

    • Syntax errors: Occur during compilation when code does not follow the rules of the language. Example: missing semicolon at the end of a statement.

    • Runtime errors: Occur during program execution when something unexpected happens. Example: dividing by zero.

    • Logical errors: Occur when the code compiles and runs without error, but doe...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Strong understanding of Java and JavaScript.

Interview questions from similar companies

I applied via Company Website and was interviewed before Mar 2020. There was 1 interview round.

Interview Questionnaire 

3 Questions

  • Q1. Write a program on bubble sort ?
  • Ans. 

    Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order.

    • Start from the first element and compare it with the next element

    • If the first element is greater than the next element, swap them

    • Repeat this process for all elements in the list

    • Continue this process until no more swaps are needed

  • Answered by AI
  • Q2. Define Turing Machine ?
  • Ans. 

    A Turing Machine is a theoretical device that can simulate any algorithmic computation.

    • It was proposed by Alan Turing in 1936 as a model for computation.

    • It consists of a tape, a head that can read and write symbols on the tape, and a set of rules for transitioning between states.

    • It can simulate any algorithmic computation, making it a powerful tool for theoretical computer science.

    • It is often used as a theoretical basi...

  • Answered by AI
  • Q3. Explain hash function
  • Ans. 

    A hash function is a mathematical function that converts input data of arbitrary size into a fixed-size output.

    • Hash functions are used to index data in hash tables.

    • They are also used in cryptography to securely store passwords.

    • Examples of hash functions include MD5, SHA-1, and SHA-256.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Interview was lengthy process some questions were difficult to answer and i tried to amswer a few questions but i didnt clear interview process

Skills evaluated in this interview

I applied via Referral and was interviewed before May 2021. There were 2 interview rounds.

Round 1 - Technical 

(3 Questions)

  • Q1. They check your deep understanding about google sheets with various formulas and complex problems
  • Q2. Pareto Analysis, complex google sheets formulas
  • Q3. Sql basic understanding like to be able to write basic queries to little complex queries to fetch data
Round 2 - One-on-one 

(1 Question)

  • Q1. They check your proficiency to tackle complex problems with ease

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident, even if you stuck on a particular question atleast give a try and you should be ready with a generic solution with deep understanding of the concept. Google sheets in itself is enough to crack the interview at byjus
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. What is sql language
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Jun 2023. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all Resume tips
Round 2 - One-on-one 

(1 Question)

  • Q1. Asked about my reasons to enter into a non core job and if I have any relevant skills/interests
Round 3 - One-on-one 

(1 Question)

  • Q1. Asked on my academics and changes I would like to bring in Education sector

Interview Preparation Tips

Interview preparation tips for other job seekers - Check with the recent company reviews and its position to make a choice
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed before Apr 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all Resume tips
Round 2 - Technical 

(2 Questions)

  • Q1. What is financial budgeting and analysis
  • Ans. 

    Financial budgeting and analysis involves creating and managing a financial plan to achieve business goals.

    • Financial budgeting involves creating a plan for income and expenses over a specific period of time.

    • Financial analysis involves reviewing financial data to identify trends, opportunities, and potential risks.

    • Both budgeting and analysis are important for making informed financial decisions and achieving business ob...

  • Answered by AI
  • Q2. Talk about the topic and also highlight the best practices you use.
  • Ans. 

    The topic is best practices for senior associates.

    • One best practice is to prioritize tasks and manage time effectively.

    • Another best practice is to communicate clearly and effectively with team members and clients.

    • A third best practice is to continuously learn and stay updated on industry trends and developments.

    • Additionally, building strong relationships and networking with colleagues and clients is crucial.

    • Lastly, att...

  • Answered by AI
Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Dec 2023. There were 2 interview rounds.

Round 1 - HR 

(2 Questions)

  • Q1. Short Introduction
  • Q2. Experience and salary
Round 2 - One-on-one 

(2 Questions)

  • Q1. Introduce yourself
  • Q2. Mock call & product pitch

Interview Preparation Tips

Topics to prepare for Testbook.com Senior Associate interview:
  • Product Mapping
  • Sales Strategy
Interview experience
1
Bad
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
No response

I applied via Job Portal and was interviewed in May 2024. There were 3 interview rounds.

Round 1 - One-on-one 

(1 Question)

  • Q1. Self introduction
Round 2 - Assignment 

PPT Assignment comparing all APIs

Round 3 - One-on-one 

(1 Question)

  • Q1. Domain knowledge

Interview Preparation Tips

Interview preparation tips for other job seekers - The HR is non responsive. After spending 3-4 days completing the assignment, traveling to their office for a final round they don't even have the courtesy to give the candidate proper feedback. I followed up every 3 days and after 2 weeks they just dropped me a message saying that I'm not selected without even giving any feedback.
Interview experience
2
Poor
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed before Dec 2022. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all Resume tips
Round 2 - One-on-one 

(2 Questions)

  • Q1. Basic questions
  • Q2. Details about your day to day work
  • Ans. 

    As a Senior Associate, my day to day work involves managing client relationships, overseeing project timelines, and providing strategic guidance.

    • Managing client relationships by regularly communicating with clients to understand their needs and address any concerns

    • Overseeing project timelines by creating and updating project plans, tracking progress, and ensuring deadlines are met

    • Providing strategic guidance by analyzi...

  • Answered by AI
Round 3 - Case Study 

Situation based questions

Round 4 - HR 

(1 Question)

  • Q1. Details on joining
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed before Mar 2023. There was 1 interview round.

Round 1 - HR 

(2 Questions)

  • Q1. Normal introduction
  • Q2. Tell me about ur self job profile responsibilities

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident
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Unacademy Interview FAQs

How many rounds are there in Unacademy Fullstack Java Developer interview?
Unacademy interview process usually has 2 rounds. The most common rounds in the Unacademy interview process are Coding Test and Technical.
What are the top questions asked in Unacademy Fullstack Java Developer interview?

Some of the top questions asked at the Unacademy Fullstack Java Developer interview -

  1. What are the reasons that classify Java as an object-oriented programming langu...read more
  2. What are the different types of errors in Ja...read more

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Unacademy Fullstack Java Developer Interview Process

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Excellent
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