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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.

Sun Pharmaceutical Industries

Join us and thrive in a company culture that inspires and empowers.

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.

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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
-

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

 Junior Java Developer

 (1)

 Senior Java Developer

 (1)

 Java Microservice Developer

 (1)

 Fullstack Java Application Developer

 (1)

 Java Technical Lead

 (1)

 Software Developer

 (10)

 Talend Developer

 (2)

 ETL Developer

 (2)

Interview questions from similar companies

Interview Preparation Tips

Round: Test
Experience: Apti was quite easy . In Basic CS concepts software engineering is prominent.
Tips: Brush up Software Engineering before written test
Duration: 90 minutes
Total Questions: 50

College Name: NIT BHOPAL

I appeared for an interview before Aug 2016.

Interview Preparation Tips

Round: General and technical aptitude
Experience: There were questions on basics of programming and general questions on verbal,reasoning and quantitative.
Tips: Time will be short to answer all so keep watch on time

Round: Group Discussion
Experience: They segregated us in to batches and in our team there were 10 members.
Tips: Easy round
Duration: 15 minutes

Round: Telephonic
Experience: They tested my communication skill in that round

College Name: Dhanalakshmi college of engineering

I appeared for an interview in Apr 2017.

Interview Questionnaire 

2 Questions

  • Q1. Java questions...
  • Q2. Tell me about urself and about us family and all
  • Ans. 

    I am a software developer with a passion for coding and problem-solving. My family is supportive and has always encouraged my career in tech.

    • Experienced software developer

    • Passionate about coding and problem-solving

    • Supportive family that encourages my career in tech

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: Easy questions are there
Duration: 1 hour
Total Questions: 90

Round: Group Discussion
Experience: 12 members are there only 9 got selected
Tips: Be confident in urself and specially work in Communication skills
Duration: 15 minutes

Round: Technical Interview
Experience: Asking all the concepts of Java like oops collections threads
Tips: Prepare well on Java

Round: HR Interview
Experience: Everything was Gud but due to my certificate problem I got rejected.. Otherwise everything is good.
Tips: Be confident

College Name: C. V. Raman College of Engineering

I appeared for an interview in Jul 2017.

Interview Questionnaire 

6 Questions

  • Q1. What is autoboxing and unboxing
  • Ans. 

    Autoboxing is the automatic conversion of primitive data types to their corresponding object wrapper classes.

    • Autoboxing is useful when working with collections that require objects instead of primitives.

    • Example: int i = 5; Integer j = i; //autoboxing

    • Unboxing is the opposite of autoboxing, where an object of a wrapper class is converted back to its corresponding primitive type.

    • Example: Integer j = 5; int i = j; //unboxi

  • Answered by AI
  • Q2. What is typecasting UP AND DOWN
  • Ans. 

    Typecasting up and down refers to converting a variable of one data type to another data type of higher or lower precision.

    • Typecasting up involves converting a variable of lower precision to a variable of higher precision, such as converting an int to a double.

    • Typecasting down involves converting a variable of higher precision to a variable of lower precision, such as converting a double to an int.

    • Typecasting can resul...

  • Answered by AI
  • Q3. How do you iterate map
  • Ans. 

    To iterate a map in Java, use a for-each loop or an iterator.

    • Use the entrySet() method to get a set of key-value pairs

    • For-each loop: for(Map.Entry entry : map.entrySet())

    • Iterator: Iterator> iterator = map.entrySet().iterator();

    • Use hasNext() and next() methods to iterate through the map

  • Answered by AI
  • Q4. Types of synchronisation in java
  • Ans. 

    Types of synchronization in Java

    • Synchronized methods

    • Synchronized statements

    • ReentrantLock

    • Semaphore

    • CountDownLatch

  • Answered by AI
  • Q5. Access modifiers in method overriding
  • Ans. 

    Access modifiers in method overriding

    • Access modifiers in the overriding method cannot be more restrictive than the overridden method

    • The access modifier can be less restrictive or the same as the overridden method

    • Private methods cannot be overridden

    • Examples: public method can be overridden by public or protected method, but not by private method

  • Answered by AI
  • Q6. Covarient return type

Skills evaluated in this interview

I appeared for an interview before Mar 2021.

Round 1 - Face to Face 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Easy

This was an easy round which went really smooth.

  • Q1. 

    Nth Fibonacci Number Problem Statement

    Calculate the Nth term in the Fibonacci sequence, where the sequence is defined as follows: F(n) = F(n-1) + F(n-2), with initial conditions F(1) = F(2) = 1.

    Input:

    ...
  • Ans. 

    Calculate the Nth Fibonacci number efficiently using dynamic programming.

    • Use dynamic programming to store previously calculated Fibonacci numbers to avoid redundant calculations.

    • Start with base cases F(1) and F(2) as 1, then iteratively calculate F(n) using F(n-1) and F(n-2).

    • Ensure the input N is within the constraints 1 <= N <= 10000.

    • Example: For N = 5, the 5th Fibonacci number is 5 (1, 1, 2, 3, 5).

  • Answered by AI
  • Q2. 

    Prime Numbers Problem Statement

    Given a positive integer N, your task is to determine and return all prime numbers less than or equal to N.

    Input:

    N = 10

    Output:

    2 3 5 7

    Example:

    Input:
    N = 20
    Out...
  • Ans. 

    Implement a function to return all prime numbers less than or equal to a given positive integer N.

    • Create a function that takes a positive integer N as input

    • Iterate from 2 to N and check if each number is prime

    • Use a helper function to determine if a number is prime

    • Return an array of all prime numbers less than or equal to N

  • Answered by AI
  • Q3. What is a merge join in SQL?
  • Ans. 

    A merge join in SQL is a method of combining two sorted datasets by matching corresponding rows based on a specified condition.

    • Merge join is used when joining two large datasets that are already sorted.

    • It is more efficient than other join methods like nested loop join or hash join for sorted datasets.

    • The join condition must be an equality condition.

    • Example: SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.i

  • Answered by AI
Round 2 - HR 

Round duration - 30 minutes
Round difficulty - Easy

The round went excellent. I really enjoyed it. Just be confident about whatever you answer

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPALarsen & Toubro Infotech (LTI) interview preparation:Topics to prepare for the interview - Database, Basic C/C++, Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 3 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 2021.

Round 1 - Face to Face 

(2 Questions)

Round duration - 60 minutes
Round difficulty - Easy

This round went well. Interview depends on your basic knowledge of C/C++.

  • Q1. 

    Matrix Multiplication Task

    Given two sparse matrices MAT1 and MAT2 of integers with dimensions 'N' x 'M' and 'M' x 'P' respectively, the goal is to determine the resulting matrix produced by their multipl...

  • Ans. 

    Implement a function to multiply two sparse matrices and return the resulting matrix.

    • Create a function that takes two sparse matrices as input and returns the resulting matrix after multiplication

    • Iterate through the non-zero elements of the matrices to perform the multiplication efficiently

    • Handle the edge cases such as empty matrices or matrices with all zero elements

    • Ensure the dimensions of the matrices are compatible

  • Answered by AI
  • Q2. 

    Problem: Count Even or Odd in Array

    Tanmay and Rohit are best buddies. Tanmay gives Rohit a challenge involving an array of N natural numbers. The task is to perform and answer a series of queries on the ...

  • Ans. 

    Count the number of even or odd numbers in a range of an array based on given queries.

    • Create an array to store the input numbers.

    • Iterate through the queries and update or count even/odd numbers based on the query type.

    • Output the count of even or odd numbers for each query of type 1 or 2.

  • Answered by AI
Round 2 - HR 

Round duration - 30 minutes
Round difficulty - Easy

Typical HR round with behavioral problems.

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPALarsen & Toubro Infotech (LTI) interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 3 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

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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
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CitiusTech Java Developer Salary
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₹3 L/yr - ₹9 L/yr
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based on 4 reviews

1.7/5

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2.2

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