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CitiusTech Java Developer Interview Questions, Process, and Tips

Updated 9 Jan 2025

Top CitiusTech Java Developer Interview Questions and Answers

  • Q1. Word Frequency Counter Given a string 'S' consisting of words, your task is to calculate how many times each word appears in the string. A word is a series of one or mor ...read more
  • Q2. What is the difference between Comparable and Comparator in Java?
  • Q3. What is the comparison between Azure and AWS cloud service providers?
View all 8 questions

CitiusTech Java Developer Interview Experiences

4 interviews found

Interview experience
4
Good
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Recruitment Consulltant and was interviewed in Dec 2024. There was 1 interview round.

Round 1 - Technical 

(3 Questions)

  • Q1. Explain Spring Boot
  • Ans. 

    Spring Boot is a framework that simplifies the development of Java applications by providing pre-configured settings and tools.

    • Spring Boot eliminates the need for manual configuration by providing defaults for most settings.

    • It allows for easy creation of stand-alone, production-grade Spring-based applications.

    • Spring Boot includes embedded servers like Tomcat, Jetty, or Undertow, making it easy to deploy applications.

    • It...

  • Answered by AI
  • Q2. What is Redux in React
  • Ans. 

    Redux is a predictable state container for JavaScript apps, commonly used with React for managing application state.

    • Redux helps manage the state of an application in a predictable way

    • It provides a single source of truth for the state of the application

    • Actions are dispatched to update the state in a predictable manner

    • Reducers specify how the state changes in response to actions

    • Redux is commonly used with React to manage

  • Answered by AI
  • Q3. What is Context API in React
  • Ans. 

    Context API in React is a way to pass data through the component tree without having to pass props down manually at every level.

    • Context API provides a way to share values like themes, user data, etc. across the component tree without having to pass props down manually.

    • It consists of three main parts: Provider, Consumer, and useContext hook.

    • Provider component allows the data to be passed down to the tree, Consumer compo...

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Job Fair and was interviewed in Jul 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Java 8 features
  • Q2. Junit code writing
Round 2 - HR 

(2 Questions)

  • Q1. Reason for job change
  • Ans. 

    Seeking new challenges and growth opportunities in a dynamic environment.

    • Desire for professional growth

    • Seeking new challenges

    • Interested in a more dynamic work environment

  • Answered by AI
  • Q2. Past experience

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Java Developer Interview Questions & Answers

user image Ashwini Salunke

posted on 1 Aug 2024

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Count duplicate from int array
  • Ans. 

    Count duplicates in an int array

    • Create a HashMap to store the count of each element in the array

    • Iterate through the array and update the count in the HashMap

    • Count the elements with count greater than 1 as duplicates

  • Answered by AI

Skills evaluated in this interview

I appeared for an interview in Dec 2021.

Round 1 - Video Call 

(2 Questions)

Round duration - 60 minutes
Round difficulty - Easy

This was a technical round with questions on Coding and core java based questions.

  • Q1. 

    Word Frequency Counter

    Given a string 'S' consisting of words, your task is to calculate how many times each word appears in the string. A word is a series of one or more non-space characters. In 'S', wor...

  • Ans. 

    Count the frequency of each word in a given string.

    • Split the string by spaces to get individual words.

    • Use a hashmap to store each word and its frequency.

    • Iterate through the words and update the hashmap accordingly.

    • Print out the words and their frequencies in any order.

  • Answered by AI
  • Q2. What is the difference between Comparable and Comparator in Java?
  • Ans. 

    Comparable is an interface used for natural ordering, while Comparator is an interface used for custom ordering in Java.

    • Comparable interface is used to define the natural ordering of objects. It is implemented by the class whose objects are to be compared.

    • Comparator interface is used to define custom ordering of objects. It is implemented by a separate class.

    • Comparable interface has a single method, compareTo(), which ...

  • Answered by AI
Round 2 - Video Call 

(2 Questions)

Round duration - 60 minutes
Round difficulty - Easy

This was a technical + managerial round.

  • Q1. What are the advantages of multithreading in Java?
  • Ans. 

    Multithreading in Java allows for concurrent execution of multiple tasks, improving performance and responsiveness.

    • 1. Improved performance by utilizing multiple CPU cores efficiently.

    • 2. Enhanced responsiveness as tasks can run concurrently without blocking each other.

    • 3. Simplified coding for complex tasks by breaking them into smaller threads.

    • 4. Facilitates better resource utilization and scalability.

    • 5. Examples: paral...

  • Answered by AI
  • Q2. What is the comparison between Azure and AWS cloud service providers?
  • Ans. 

    Azure and AWS are two major cloud service providers offering similar services but with some differences in features and pricing.

    • AWS is the oldest and most widely used cloud service provider, while Azure is catching up quickly.

    • Azure is known for its strong integration with Microsoft products and services, while AWS has a wider range of third-party integrations.

    • AWS has a larger global presence with more data centers worl...

  • Answered by AI
Round 3 - HR 

Round duration - 30 minutes
Round difficulty - Easy

This was a typical HR round.

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPACitiustech interview preparation:Topics to prepare for the interview - Java, Cloud Computing, Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 4 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewSelected

Skills evaluated in this interview

CitiusTech interview questions for designations

 Senior Java Developer

 (1)

 Junior Java Developer

 (1)

 Java Microservice Developer

 (1)

 Fullstack Java Application Developer

 (1)

 Java Technical Lead

 (1)

 Software Developer

 (10)

 ETL Developer

 (2)

 Talend Developer

 (2)

Interview questions from similar companies

I appeared for an interview before Mar 2021.

Round 1 - Coding Test 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Medium

21 students were shortlisted from the 1st MCQ round and in this round we were asked to write the codes (function only) of 3 questions in 1 hour time.

  • Q1. 

    Rotting Oranges Problem Statement

    You are given a grid containing oranges where each cell of the grid can contain one of the three integer values:

    • 0 - representing an empty cell
    • 1 - representing a fre...
  • Ans. 

    Find the minimum time required to rot all fresh oranges in a grid.

    • Use Breadth First Search (BFS) to simulate the rotting process

    • Track the time taken to rot all oranges and return -1 if any fresh oranges remain

    • Handle edge cases like no fresh oranges or all oranges already rotten

    • Consider using a queue to efficiently process adjacent oranges

  • Answered by AI
  • Q2. 

    Majority Element Problem Statement

    Given an array/list 'ARR' consisting of 'N' integers, your task is to find the majority element in the array. If there is no majority element present, return -1.

    Exampl...

  • Ans. 

    Find the majority element in an array, return -1 if no majority element exists.

    • Iterate through the array and keep track of the count of each element using a hashmap.

    • Check if any element's count is greater than floor(N/2) to determine the majority element.

    • Return the majority element or -1 if no majority element exists.

  • Answered by AI
  • Q3. 

    Maximum Path Sum Between Two Leaves Problem Description

    You are provided with a non-empty binary tree in which each node contains a non-negative integer value. Your task is to find and return the maximum ...

  • Ans. 

    Find the maximum path sum between two leaf nodes in a binary tree.

    • Traverse the tree to find the maximum path sum between two leaf nodes.

    • Keep track of the maximum sum found so far.

    • Consider all possible paths between leaf nodes.

    • Handle cases where the tree has only a single leaf node.

    • Implement a recursive function to calculate the maximum path sum.

  • Answered by AI
Round 2 - Face to Face 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Medium

This was a technical round with DSA based questions.

  • Q1. 

    N-th Node From The End Problem Statement

    You are given a Singly Linked List of integers. The task is to find the N-th node from the end of the list.

    Example:

    Input:
    If the given list is (1 -> -2 -&g...
  • Ans. 

    Find the N-th node from the end of a Singly Linked List of integers.

    • Traverse the list to find the length L of the list.

    • Calculate the position of the N-th node from the beginning as L - N + 1.

    • Traverse the list again to reach the calculated position and return the node's value.

  • Answered by AI
  • Q2. 

    LCA of Binary Tree Problem Statement

    You are given a binary tree consisting of distinct integers and two nodes, X and Y. Your task is to find and return the Lowest Common Ancestor (LCA) of these two nodes...

  • Ans. 

    Find the Lowest Common Ancestor (LCA) of two nodes in a binary tree.

    • Traverse the binary tree to find the paths from the root to nodes X and Y.

    • Compare the paths to find the last common node, which is the LCA.

    • Handle cases where one node is an ancestor of the other or when one node is the LCA itself.

  • Answered by AI
  • Q3. 

    Reverse Words in a String: Problem Statement

    You are given a string of length N. Your task is to reverse the string word by word. The input may contain multiple spaces between words and may have leading o...

  • Ans. 

    Reverse words in a string while handling leading/trailing spaces and multiple spaces between words.

    • Split the input string by spaces to get individual words

    • Reverse the list of words

    • Join the reversed words with a single space in between

    • Handle leading/trailing spaces by stripping them before and after reversing

  • Answered by AI
Round 3 - Face to Face 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Easy

Technical Interview round with questions based on DSA

  • Q1. 

    Minimum Time To Solve The Problems

    Given 'N' subjects, each containing a certain number of problems, and 'K' friends, assign subjects to friends such that each subject goes to exactly one friend, maintain...

  • Ans. 

    Assign subjects to friends to minimize maximum workload, find minimum time for most loaded friend.

    • Sort subjects in descending order

    • Assign subjects to friends one by one until all subjects are assigned

    • The maximum workload will be the sum of problems assigned to the friend with the most problems

    • Return the maximum workload as the minimum time required

  • Answered by AI
  • Q2. What is grammar in the context of compiler design?
  • Ans. 

    Grammar in compiler design defines the syntax and structure of a programming language.

    • Grammar specifies the rules for forming valid statements in a programming language.

    • It consists of a set of production rules that define how valid programs can be constructed.

    • There are different types of grammars such as context-free grammar, regular grammar, etc.

    • Example: In C programming language, the grammar specifies that a for loop...

  • Answered by AI
  • Q3. What is a token in compiler design?
  • Ans. 

    A token in compiler design is a basic unit of syntax that the compiler can understand and process.

    • Tokens are the smallest units of a program that are meaningful to the compiler.

    • Examples of tokens include keywords, identifiers, operators, and punctuation symbols.

    • Tokens are generated by the lexical analysis phase of the compiler.

    • Tokens are used by the parser to build the abstract syntax tree of the program.

  • Answered by AI
Round 4 - Video Call 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Easy

Technical round with questions on DSA and Compiler Design mainly. He told me that you’ll be having your final HR round in some time. I knew that I was going well because he seemed to be quite satisfied with my answers.

  • Q1. 

    Sum Root to Leaf Numbers

    You are given an arbitrary binary tree consisting of N nodes, each associated with an integer value from 1 to 9. Each root-to-leaf path can be considered a number formed by concat...

  • Ans. 

    Find the total sum of all root to leaf paths in a binary tree formed by concatenating node values.

    • Traverse the binary tree from root to leaf nodes, keeping track of the current path sum

    • Add the current path sum to the total sum when reaching a leaf node

    • Use modulo (10^9 + 7) to handle large outputs

  • Answered by AI
  • Q2. What is a regular language?
  • Ans. 

    A regular language is a language that can be recognized by a finite automaton.

    • Regular languages can be described by regular expressions.

    • Regular languages are closed under union, concatenation, and Kleene star operations.

    • Examples of regular languages include the set of all strings over an alphabet that contain an even number of 'a's.

  • Answered by AI
  • Q3. What are NP and NP-Hard problems?
  • Ans. 

    NP problems are decision problems that can be verified in polynomial time, while NP-Hard problems are at least as hard as the hardest problems in NP.

    • NP problems can be verified in polynomial time but not necessarily solved in polynomial time.

    • NP-Hard problems are at least as hard as the hardest problems in NP, but may not be in NP themselves.

    • Examples of NP problems include the subset sum problem and the traveling salesm...

  • Answered by AI
Round 5 - HR 

Round duration - 30 minutes
Round difficulty - Easy

That was the round for which I’ve been waiting for hours 
She was very friendly and nice to talk to. It didn’t seem that I was talking to the HR. It was more like talking to a friend. Finally we discussed about the pay-scale and work culture in Accolite.

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAAccolite Digital Pvt Ltd interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 6 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewSelected

Skills evaluated in this interview

I appeared for an interview before Mar 2016.

Interview Preparation Tips

Round: Test
Experience: 1. output of simple static variable programs
2. hashmap program
3. spring annotations
4.wrapper classes
5. validation script for email
Tips: go through the basics
Total Questions: 6

Interview Questionnaire 

1 Question

  • Q1. Exam was conducted on programmes. 10 questions were asked

Interview Questionnaire 

1 Question

  • Q1. Richardson maturity model

Interview Questionnaire 

1 Question

  • Q1. Interview questions on .net technology

Interview Questionnaire 

1 Question

  • Q1. Focus mainly on Javascript basics and React or Angular.

CitiusTech Interview FAQs

How many rounds are there in CitiusTech Java Developer interview?
CitiusTech interview process usually has 1-2 rounds. The most common rounds in the CitiusTech interview process are Technical and HR.
How to prepare for CitiusTech Java Developer 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 CitiusTech. The most common topics and skills that interviewers at CitiusTech expect are Java, Web Services, Spring Boot, Microservices and J2Ee.
What are the top questions asked in CitiusTech Java Developer interview?

Some of the top questions asked at the CitiusTech Java Developer interview -

  1. What is Context API in Re...read more
  2. What is Redux in Re...read more
  3. Count duplicate from int ar...read more

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CitiusTech Java Developer Interview Process

based on 4 interviews

1 Interview rounds

  • Technical Round
View more
CitiusTech Java Developer Salary
based on 53 salaries
₹3 L/yr - ₹8.9 L/yr
28% less than the average Java Developer Salary in India
View more details

CitiusTech Java Developer Reviews and Ratings

based on 4 reviews

1.7/5

Rating in categories

2.2

Skill development

2.4

Work-life balance

2.2

Salary

1.5

Job security

1.7

Company culture

1.5

Promotions

1.9

Work satisfaction

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