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NullClass Interview Questions and Answers

Updated 12 Mar 2025

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14 interviews found

Fullstack Java Developer Interview Questions & Answers

user image Aakanksha Suryawanshi

posted on 12 Mar 2025

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I appeared for an interview in Sep 2024, where I was asked the following questions.

  • Q1. Introduce yourself?
  • Q2. Tell the OOPs concepts?

Fullstack Java Developer Interview Questions asked at other Companies

Q1. If needed, will you work on the older technology stack?
View answer (2)
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview in Jan 2025.

Round 1 - Aptitude Test 

Time, work, distance, speed, and mixture.

Round 2 - Coding Test 

Array, string, list, map.

Round 3 - HR 

(6 Questions)

  • Q1. Self Introduction, Project Details
  • Q2. Education Details
  • Q3. Internship Details
  • Q4. Basic information
  • Q5. Aptitute test(time,distance,speed,average)
  • Q6. Java related Quiz

Java Developer Interview Questions asked at other Companies

Q1. Sort 0 and 1 Problem Statement Given an integer array ARR of size N containing only integers 0 and 1, implement a function to sort this array. The solution should scan the array only once without using any additional arrays. Input: The firs... read more
View answer (4)
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Job Portal and was interviewed in Nov 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

1 hr, maths, english

Round 2 - Coding Test 

Python based coding , along with some DSA

Interview Preparation Tips

Interview preparation tips for other job seekers - ok, good company, healthy environment

Data Analyst Intern Interview Questions asked at other Companies

Q1. Water Jug Problem Statement You have two water jugs with capacities X and Y liters respectively, both initially empty. You also have an infinite water supply. The goal is to determine if it is possible to measure exactly Z liters using thes... read more
View answer (3)
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.

Round 1 - Coding Test 

They asked me about my projects that I have mentioned in my resume and they checked some technical knowledge of mine as well as some basic concepts of c++ . The overall experience is good they all are cooperative.

Interview Preparation Tips

Interview preparation tips for other job seekers - Work hard and consistent with your work.

Software Engineer Interview Questions asked at other Companies

Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person... read more
View answer (213)

NullClass interview questions for popular designations

 Web Development Intern

 (3)

 Full Stack Developer

 (2)

 Fullstack Java Developer

 (2)

 Data Analyst Intern

 (1)

 Internship Trainee

 (1)

 Software Engineer

 (1)

 Full Stack Software Developer

 (1)

 Web Developer

 (1)

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. About your self?
  • Q2. Questions based on mern stack.

Internship Trainee Interview Questions asked at other Companies

Q1. Tell about your UG project? How will you design a table for 1 tonne load and what are all the consideration needed for it? Tell the Equations you know in strength of Materials? What are manufacturing processes involved to fabricate ball bea... read more
View answer (2)
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Referral and was interviewed in Mar 2024. There were 2 interview rounds.

Round 1 - Coding Test 

Easy coding questions on array linked list stack

Round 2 - HR 

(1 Question)

  • Q1. Hobbies and general discussion

Interview Preparation Tips

Interview preparation tips for other job seekers - Be prepare with basics

Full Stack Developer Interview Questions asked at other Companies

Q1. Query and Matrix Problem Statement You are given a binary matrix with 'M' rows and 'N' columns, initially consisting of all 0s. You will receive 'Q' queries, which can be of four types: Query 1: 1 R indexQuery 2: 1 C indexQuery 3: 2 R index... read more
View answer (1)
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Group Discussion 

Discussion on Women Empowerment and 3 people were selected.

Interview Preparation Tips

Interview preparation tips for other job seekers - Study Hard

Software Developer Intern Interview Questions asked at other Companies

Q1. Sum of Maximum and Minimum Elements Problem Statement Given an array ARR of size N, your objective is to determine the sum of the largest and smallest elements within the array. Follow Up: Can you achieve the above task using the least numb... read more
View answer (5)
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in May 2024. There was 1 interview round.

Round 1 - One-on-one 

(1 Question)

  • Q1. Basic introduction

Web Development Intern Interview Questions asked at other Companies

Q1. Merge Sort Problem Statement You are given a sequence of numbers, ARR. Your task is to return a sorted sequence of ARR in non-descending order using the Merge Sort algorithm. Explanation: The Merge Sort algorithm is a Divide and Conquer app... read more
View answer (1)

Web Developer Interview Questions & Answers

user image Anonymous

posted on 16 Mar 2024

Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed in Sep 2023. There was 1 interview round.

Round 1 - One-on-one 

(4 Questions)

  • Q1. What is React? and difference between react and angular.
  • Ans. 

    React is a JavaScript library for building user interfaces.

    • React is a JavaScript library developed by Facebook.

    • React uses a virtual DOM for better performance.

    • React is component-based, making it easier to reuse code.

    • React is mainly used for building single-page applications.

    • Angular is a full-fledged framework for building web applications.

    • Angular uses two-way data binding, while React uses one-way data flow.

    • Angular has

  • Answered by AI
  • Q2. What is ReactJs ?
  • Ans. 

    ReactJs is a JavaScript library for building user interfaces.

    • ReactJs is developed and maintained by Facebook.

    • It allows developers to create reusable UI components.

    • ReactJs uses a virtual DOM for better performance.

    • It follows a component-based architecture.

    • ReactJs can be used for building single-page applications.

  • Answered by AI
  • Q3. What is Angular ?
  • Ans. 

    Angular is a popular front-end framework for building dynamic web applications.

    • Developed and maintained by Google

    • Uses TypeScript for building applications

    • Follows the MVC (Model-View-Controller) architecture

    • Supports two-way data binding for real-time updates

    • Has a large community and ecosystem of libraries and tools

  • Answered by AI
  • Q4. Difference between React and angular
  • Ans. 

    React is a JavaScript library for building user interfaces, while Angular is a full-fledged framework for web development.

    • React is a library, while Angular is a framework

    • React uses a virtual DOM for better performance, Angular uses a regular DOM

    • React is more flexible and lightweight, Angular has more built-in features and tools

    • React is easier to learn for beginners, Angular has a steeper learning curve

    • React is maintain

  • Answered by AI

Skills evaluated in this interview

Web Developer Interview Questions asked at other Companies

Q1. Last Index of Element The task is to determine the index of the last occurrence of a specified element x within an array that may contain duplicate elements. If the element is not present, return -1. Input: The first line contains an intege... read more
View answer (1)
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Group Discussion 

They asked questions about my project.

Round 2 - Coding Test 

All coding questions are based on Data Structures and Algorithm

Round 3 - HR 

(2 Questions)

  • Q1. HR round is one of the friendly round.
  • Q2. 1.Introduce yourself 2.Why should we hire you?

Interview Preparation Tips

Interview preparation tips for other job seekers - One of the important advice i would like to give you is be confident while giving interview.

Fullstack Java Developer Interview Questions asked at other Companies

Q1. If needed, will you work on the older technology stack?
View answer (2)

NullClass Interview FAQs

How many rounds are there in NullClass interview?
NullClass interview process usually has 1-2 rounds. The most common rounds in the NullClass interview process are Coding Test, HR and One-on-one Round.
How to prepare for NullClass interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at NullClass. The most common topics and skills that interviewers at NullClass expect are Business Development, Mobile Application Development, Sales, Sales Lead Generation and UX.
What are the top questions asked in NullClass interview?

Some of the top questions asked at the NullClass interview -

  1. What is React? and difference between react and angul...read more
  2. What is ReactJ...read more
  3. What is Angula...read more
How long is the NullClass interview process?

The duration of NullClass interview process can vary, but typically it takes about less than 2 weeks to complete.

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NullClass Interview Process

based on 22 interviews

Interview experience

4.2
  
Good
View more

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NullClass Reviews and Ratings

based on 154 reviews

4.0/5

Rating in categories

4.1

Skill development

4.0

Work-life balance

3.4

Salary

3.5

Job security

3.8

Company culture

3.5

Promotions

3.9

Work satisfaction

Explore 154 Reviews and Ratings
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