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Cognizant Senior Java Developer Interview Questions, Process, and Tips

Updated 19 Dec 2024

Top Cognizant Senior Java Developer Interview Questions and Answers

  • Q1. Given an array {1, 2, 1, 4, 5, 4, 8, 7}, how can you use Streams to remove duplicates while retaining only the even numbers?
  • Q2. What is the use of Static and final when you will use Static methods
  • Q3. What is the difference between @restController and @controller Annotation

Cognizant Senior Java Developer Interview Experiences

5 interviews found

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

I applied via Walk-in and was interviewed in Nov 2024. There was 1 interview round.

Round 1 - Technical 

(4 Questions)

  • Q1. Given an array {1, 2, 1, 4, 5, 4, 8, 7}, how can you use Streams to remove duplicates while retaining only the even numbers?
  • Ans. 

    Use Streams to remove duplicates and retain only even numbers from an array.

    • Convert the array to a stream using Arrays.stream()

    • Use distinct() to remove duplicates

    • Filter out odd numbers using filter()

    • Collect the result using collect(Collectors.toList())

  • Answered by AI
  • Q2. What is the use of Static and final when you will use Static methods
  • Ans. 

    Static methods can be accessed without creating an instance of the class, while final keyword makes the method unchangeable.

    • Static methods belong to the class itself, not to any specific instance

    • Final keyword ensures that the method cannot be overridden in subclasses

    • Static methods are commonly used for utility methods that do not require access to instance variables

    • Example: Math class in Java has static methods like Ma

  • Answered by AI
  • Q3. What is the difference between @restController and @controller Annotation
  • Ans. 

    The @RestController annotation is used to define RESTful web services while @Controller annotation is used to define MVC controller.

    • RestController is a specialized version of Controller used for RESTful web services

    • RestController eliminates the need for @ResponseBody annotation

    • Controller is used for traditional MVC controller functionality

    • RestController returns data directly without needing to go through a view resolve...

  • Answered by AI
  • Q4. What is microservices why we use it
  • Ans. 

    Microservices are a software development technique where applications are composed of small, independent services that communicate with each other.

    • Microservices allow for easier scalability and maintenance of complex applications.

    • Each service in a microservices architecture can be developed, deployed, and scaled independently.

    • Microservices promote flexibility and agility in software development.

    • Examples of companies us...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Cognizant Senior Java Developer interview:
  • Java SpringBoot
Interview preparation tips for other job seekers - Need to have strong knowledge on basics Java Spring boot and Microservices

Senior Java Developer Interview Questions & Answers

user image Etesh Kumar Bandari

posted on 14 Dec 2024

Interview experience
1
Bad
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Jdbc connection properties
  • Q2. Putmapping, postmapping

Interview Preparation Tips

Interview preparation tips for other job seekers - they just want who knows configuration stuff, doesn't matter if you can code or not

Senior Java Developer Interview Questions Asked at Other Companies

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Q5. Why is Java considered platform-independent while the Java Virtua ... read more
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

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

Round 1 - Technical 

(2 Questions)

  • Q1. Architecture based questions on microservices
  • Q2. Architecture based questions on springboot boot, circuit breaker

Interview Preparation Tips

Interview preparation tips for other job seekers - Bw prepared with architecture

I applied via Naukri.com and was interviewed in Aug 2022. There were 2 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. Java 8 features Oops concept
Round 2 - Coding Test 

Highest salary of employees

Interview Preparation Tips

Interview preparation tips for other job seekers - Be relevant to answer
Elaborate more
Be confident to answer

Cognizant interview questions for designations

 Java Developer

 (24)

 Junior Java Developer

 (1)

 Core Java Developer

 (1)

 Fullstack Java Developer

 (2)

 Senior Developer

 (6)

 Java Full Stack Developer

 (4)

 Java Spring Boot Developer

 (1)

 Java Technical Lead

 (1)

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I was interviewed before Jan 2023.

Round 1 - Technical 

(2 Questions)

  • Q1. Hashmap internal working
  • Q2. Design patterns

Interview questions from similar companies

I applied via Company Website and was interviewed before Dec 2020. There were 4 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Questions on Java,SQL,some trending technologies(IOT,Big data),pattern questions, programming questions with different approaches.

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare basics of DSA, have knowledge about the databases, some common dml ,ddl statements, programming knowledge of a particular language like C,Java, python,etc...have good command on oops concepts... little bit of frameworks knowledge will also help

I applied via Newspaper Ad and was interviewed before Jun 2021. There were 3 interview rounds.

Round 1 - Aptitude Test 
Round 2 - Technical 

(1 Question)

  • Q1. Basic questions of java.
Round 3 - HR 

(1 Question)

  • Q1. Intro and other hr related questions.

Interview Preparation Tips

Interview preparation tips for other job seekers - Cover the basic questions regarding the programming language.

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

Round 1 - Aptitude Test 

Puzzles, Psychometric Test

Round 2 - One-on-one 

(1 Question)

  • Q1. Some water in 3 Jars question, you had to measure out 5L correctly

Interview Preparation Tips

Interview preparation tips for other job seekers - Make the interview interactive, I got this input from another Senior. Before i went into the interview room the volunteers were telling all those who goes into Room No 1 is screwed. I was praying i don't get room no 1. But fortunately for me I got room no 1 because when the interviewer gave me the puzzle and handed over pen and paper he went back to relax his posture and when i explained i will fill the 5L Jar first, he immediately came forward to listen to me, at that moment i knew i got the job because i felt the previous candidates never made their interview interactive and that's why he went back to relax his posture.

I applied via Company Website and was interviewed before Jun 2021. There were 2 interview rounds.

Round 1 - Aptitude Test 

First round was coding as well as aptitude done together went well I guess focusing on codes helps a lot.

Round 2 - Technical 

(1 Question)

  • Q1. 2nd round included tr and mr round went quite enegritic

Interview Preparation Tips

Interview preparation tips for other job seekers - Resume skills matters a lot don't fill resume the technologies you don't even aware of

I was interviewed before Jun 2016.

Interview Questionnaire 

4 Questions

  • Q1. Tell me something about yourself
  • Ans. 

    I am a passionate software developer with 5 years of experience in web development and a strong background in computer science.

    • 5 years of experience in web development

    • Strong background in computer science

    • Passionate about software development

  • Answered by AI
  • Q2. Questions related to project I have worked on during college days
  • Q3. Core Java concepts
  • Q4. Why do you use two mobile numbers
  • Ans. 

    To separate personal and professional calls, and to ensure availability and accessibility.

    • Separate personal and professional calls

    • Ensure availability and accessibility

    • Maintain work-life balance

    • Avoid mixing personal and work-related contacts

  • Answered by AI

Interview Preparation Tips

Round: Test
Total Questions: 60

College Name: Watumull Institute Of Electronics Engineering And Computer Technology ( WIEECT )
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Cognizant Interview FAQs

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

Some of the top questions asked at the Cognizant Senior Java Developer interview -

  1. Given an array {1, 2, 1, 4, 5, 4, 8, 7}, how can you use Streams to remove dupl...read more
  2. What is the use of Static and final when you will use Static meth...read more
  3. What is the difference between @restController and @controller Annotat...read more

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Cognizant Senior Java Developer Interview Process

based on 4 interviews

1 Interview rounds

  • Technical Round
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Cognizant Senior Java Developer Salary
based on 168 salaries
₹7.7 L/yr - ₹31 L/yr
18% more than the average Senior Java Developer Salary in India
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