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TCS Software Java Engineer Interview Questions, Process, and Tips

Updated 3 May 2023

TCS Software Java Engineer Interview Experiences

1 interview found

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 Apr 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 tips
Round 2 - HR 

(2 Questions)

  • Q1. What is your technology stack?
  • Ans. 

    My technology stack includes Java, Spring Boot, Hibernate, MySQL, and Angular.

    • Java for backend development

    • Spring Boot for creating RESTful APIs

    • Hibernate for ORM

    • MySQL for database management

    • Angular for frontend development

    • Experience with AWS and Docker

  • Answered by AI
  • Q2. Current domain and daily rountine.
Round 3 - Technical 

(15 Questions)

  • Q1. Features of java8 and java 8 related questions
  • Q2. Write program to find even and odd number using lambda expression
  • Ans. 

    Program to find even and odd number using lambda expression

    • Create a list of numbers

    • Use lambda expression to filter even and odd numbers

    • Print the even and odd numbers

  • Answered by AI
  • Q3. Stream Api program to sort employees using cities ?
  • Ans. 

    Sort employees by cities using Stream API

    • Create a list of employees with their respective cities

    • Use Stream API to sort the list by cities

    • Print the sorted list of employees

  • Answered by AI
  • Q4. How do you manage memory leakage in your application?
  • Ans. 

    Memory leakage can be managed by identifying and fixing the root cause of the issue.

    • Use a profiler tool to identify the source of the memory leak

    • Analyze the code to find out if there are any objects that are not being used and can be removed

    • Ensure that all objects are properly disposed of after use

    • Use weak references instead of strong references where possible

    • Avoid creating unnecessary objects

    • Regularly monitor memory u

  • Answered by AI
  • Q5. Lot of question about current domain and project
  • Q6. Features of springboot
  • Ans. 

    Spring Boot is a framework that simplifies the development of Java applications.

    • Provides a pre-configured environment for building production-grade applications

    • Uses embedded servers like Tomcat, Jetty, etc.

    • Supports auto-configuration, which eliminates the need for manual configuration

    • Offers a wide range of plugins and extensions for easy integration with other frameworks and tools

  • Answered by AI
  • Q7. Difference between Controller and RestController
  • Ans. 

    Controller is used for general MVC architecture while RestController is used for RESTful web services.

    • Controller is used for handling user requests and returning a view

    • RestController is used for handling RESTful web services and returning JSON/XML response

    • RestController is a specialized version of Controller

    • RestController is annotated with @RestController while Controller is annotated with @Controller

    • Example: @Controll...

  • Answered by AI
  • Q8. Concurrent hashmap
  • Q9. Which type of collection do you use in your current project
  • Ans. 

    We use ArrayList and HashMap in our current project.

    • ArrayList is used to store and manipulate a list of objects.

    • HashMap is used to store key-value pairs for efficient retrieval.

    • We also use HashSet for storing unique elements and LinkedList for efficient insertion and deletion.

    • The choice of collection depends on the specific use case and performance requirements.

  • Answered by AI
  • Q10. Steps to create springboot application
  • Ans. 

    Steps to create a Spring Boot application

    • Create a new Spring Boot project using Spring Initializr

    • Add necessary dependencies in pom.xml or build.gradle file

    • Create a main class with @SpringBootApplication annotation

    • Create necessary packages and classes for controllers, services, and repositories

    • Configure application properties in application.properties or application.yml file

    • Run the application using IDE or command line

  • Answered by AI
  • Q11. How to change embedded server in springboot
  • Ans. 

    To change embedded server in Spring Boot, modify the pom.xml file and application.properties file.

    • Update the pom.xml file with the desired server dependency

    • Update the application.properties file with the server port and context path

    • Restart the application to apply the changes

  • Answered by AI
  • Q12. Sql left and inner join
  • Q13. Hibernate vs jpa
  • Ans. 

    Hibernate is an implementation of JPA, which is a specification for ORM in Java.

    • JPA is a specification for ORM in Java, while Hibernate is an implementation of that specification.

    • Hibernate provides additional features beyond the JPA specification.

    • JPA is more portable across different ORM implementations, while Hibernate is more feature-rich.

    • Hibernate is often used in enterprise applications where complex mappings and c

  • Answered by AI
  • Q14. Can we use lambda expression without functional interface
  • Ans. 

    No, lambda expressions can only be used with functional interfaces.

    • Lambda expressions are used to implement functional interfaces.

    • Functional interfaces have only one abstract method.

    • Lambda expressions provide a concise way to implement the abstract method of a functional interface.

    • If a lambda expression is used without a functional interface, it will result in a compilation error.

  • Answered by AI
  • Q15. Advantages of microservice
  • Ans. 

    Microservices offer advantages such as scalability, flexibility, and easier maintenance.

    • Scalability: Microservices can be scaled independently, allowing for better resource utilization and cost savings.

    • Flexibility: Microservices can be developed and deployed independently, allowing for faster time-to-market and easier updates.

    • Easier maintenance: Microservices are smaller and more focused, making it easier to identify a...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Tip1- Practice all the features of java 8 and make sure you can explain them well, ensure that you can properly explain your current domain to others
Tip2- java 8 questions mostly involve lambda expression, stream api, sorting and string related programs and arrays, Regular practice in these area can help you to feel more comfortable during interview
Tip3-Read up all the core concepts of spring
Tip4-Be confident
Tip5-Focus on highlighting your skills and currrent project during the interview, Be prepare to discuss your experiecne in detail
Tip6-If you have good knowlogde of technology and framework then only mention in resume.

Skills evaluated in this interview

Interview questions from similar companies

I applied via Recruitment Consulltant and was interviewed in Oct 2021. There were 2 interview rounds.

Round 1 - One-on-one 

(1 Question)

  • Q1. Core java basics Hashmap internal working Oops concept Java 8 feature
Round 2 - Coding Test 

Find out duplicate element
Find out duplicate element and count of duplicate

Interview Preparation Tips

Interview preparation tips for other job seekers - Be prepared core java well, spring boot, skill mentioned in resume.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Company Website and was interviewed in Nov 2024. There were 2 interview rounds.

Round 1 - Technical 

(7 Questions)

  • Q1. Create one Spring boot controller from end to end. No need to create a spring boot project we just want to see the structure and end to end implementation.
  • Q2. Write a java 8 program to get the characters from a string whose count is 2 or more than 2 e.g. input: baseball , output: b, a, l.
  • Q3. Why you left your previous organization.
  • Q4. What is the functional interface
  • Q5. What are the OOPS concepts. and some questions related to inheritance.
  • Q6. Asked about the project mentioned in CV (Client project) and asked its architecture.
  • Q7. Various SQL join types
Round 2 - HR 

(3 Questions)

  • Q1. Are you ready to relocate to job location
  • Q2. Why are you leaving your previous organization.
  • Q3. Expectation about salary

Interview Preparation Tips

Interview preparation tips for other job seekers - Do your basics strong, and keep hands on problems.
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
Interview experience
1
Bad
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Recruitment Consulltant and was interviewed in Nov 2024. There were 2 interview rounds.

Round 1 - Coding Test 

The first round was an interview conducted with a GENAI virtual bot.

Round 2 - One-on-one 

(2 Questions)

  • Q1. Internal architecture of Spring boot, how enable autoconfiguration works
  • Ans. 

    Spring Boot uses autoconfiguration to automatically configure the Spring application based on dependencies and properties.

    • Spring Boot autoconfiguration is achieved through @EnableAutoConfiguration annotation

    • Autoconfiguration classes are located in the org.springframework.boot.autoconfigure package

    • Autoconfiguration classes are conditionally applied based on the presence of specific classes or properties

  • Answered by AI
  • Q2. Questions mostly on microservices and coding question on restTemplate

Interview Preparation Tips

Topics to prepare for Wipro Senior Java Developer interview:
  • Java
  • Spring Boot
  • Microservices
  • REST API
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

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

Round 1 - One-on-one 

(3 Questions)

  • Q1. Difference between hashmap and hash table
  • Ans. 

    HashMap is non-synchronized and allows null values, while HashTable is synchronized and does not allow null values.

    • HashMap is non-synchronized, meaning it is not thread-safe, while HashTable is synchronized and thread-safe.

    • HashMap allows null values for both keys and values, while HashTable does not allow null keys or values.

    • HashMap is generally preferred for non-thread-safe applications, while HashTable is used in mul

  • Answered by AI
  • Q2. Static block related questions
  • Q3. Arraylist and linkedlist question

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
6-8 weeks
Result
Not Selected

I applied via Job Fair and was interviewed in Oct 2024. There were 4 interview rounds.

Round 1 - Aptitude Test 

Onlin test consist pf easy numerical questions

Round 2 - Coding Test 

Easy questions not so difficult

Round 3 - Technical 

(3 Questions)

  • Q1. Java oops concept
  • Q2. Basic sprophramming questions
  • Q3. Networking firewall cisco
Round 4 - HR 

(2 Questions)

  • Q1. Personal questions
  • Q2. Whetehr to willing to work in any locations
  • Ans. 

    Yes, I am willing to work in any location for the right opportunity.

    • I am open to relocating for the right job opportunity

    • I am flexible and adaptable to new environments

    • I believe working in different locations can provide valuable experiences and growth opportunities

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Tech Mahindra Java Developer interview:
  • Networking
Interview preparation tips for other job seekers - nothiung
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

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

Round 1 - Technical 

(9 Questions)

  • Q1. Transactions in springboot
  • Ans. 

    Transactions in Spring Boot manage database operations as a single unit of work to ensure data integrity.

    • Spring Boot provides support for declarative transaction management using @Transactional annotation.

    • Transactions can be configured at class or method level.

    • Transactions can be rolled back in case of exceptions to maintain data consistency.

    • Example: @Transactional annotation on a service method ensures that all databa...

  • Answered by AI
  • Q2. Difference between arraylist and linked list
  • Ans. 

    ArrayList is resizable array implementation, LinkedList is doubly linked list implementation.

    • ArrayList uses dynamic array to store elements, LinkedList uses doubly linked list.

    • ArrayList is faster for accessing elements by index, LinkedList is faster for adding/removing elements.

    • Example: ArrayList arrList = new ArrayList<>(); LinkedList linkedList = new LinkedList<>();

Answered by AI
  • Q3. How REST API used
  • Ans. 

    REST API is used to communicate between client and server using HTTP methods like GET, POST, PUT, DELETE.

    • REST API allows clients to access and manipulate resources on a server using standard HTTP methods.

    • It uses URLs to identify resources and HTTP methods to perform actions on those resources.

    • Common HTTP methods used in REST API are GET (retrieve data), POST (create data), PUT (update data), DELETE (remove data).

    • REST A...

  • Answered by AI
  • Q4. Annotations in springboot
  • Ans. 

    Annotations in Spring Boot are used to provide metadata about the application and its components.

    • Annotations are used to configure Spring Boot applications, define beans, handle requests, etc.

    • Examples include @SpringBootApplication, @RestController, @Autowired, @RequestMapping, etc.

  • Answered by AI
  • Q5. Features of java 8
  • Ans. 

    Java 8 introduced several new features including lambda expressions, functional interfaces, streams, and default methods in interfaces.

    • Lambda expressions allow for more concise code and enable functional programming.

    • Functional interfaces are interfaces with a single abstract method, used for lambda expressions.

    • Streams provide a way to work with collections of objects in a functional style.

    • Default methods in interfaces ...

  • Answered by AI
  • Q6. How interface is implemented in java
  • Ans. 

    Interfaces in Java are implemented using the 'implements' keyword, allowing classes to provide specific implementations for methods defined in the interface.

    • Interfaces in Java define a contract for classes to implement, specifying method signatures without implementations.

    • A class can implement multiple interfaces by separating them with commas.

    • Classes implementing an interface must provide concrete implementations for ...

  • Answered by AI
  • Q7. How stream API works
  • Ans. 

    Stream API in Java provides a way to process collections of objects in a functional style.

    • Stream API allows for functional-style operations on collections like map, filter, reduce, etc.

    • It supports lazy evaluation, meaning operations are only performed when needed.

    • Streams can be sequential or parallel, depending on the source and operations used.

  • Answered by AI
  • Q8. Benefits of springboot over spring
  • Ans. 

    Spring Boot simplifies the setup and development of Spring applications by providing a convention-over-configuration approach.

    • Spring Boot eliminates the need for XML configuration by using annotations and sensible defaults.

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

    • Auto-configuration feature reduces the amount of boilerplate code needed to set up a Spr...

  • Answered by AI
  • Q9. Difference between throw and throwable
  • Ans. 

    throw is a keyword used to explicitly throw an exception, while Throwable is a class that serves as the base class for all exceptions in Java.

    • throw is used to throw an exception in a method, while Throwable is the superclass of all exceptions in Java.

    • throw is followed by an instance of Throwable class or its subclasses, while Throwable is a class that provides common methods for handling exceptions.

    • Example: throw new N...

  • Answered by AI

    Interview Preparation Tips

    Interview preparation tips for other job seekers - Try to speak about one topic of more time it will increase the time of interview.

    Skills evaluated in this interview

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

    I applied via Walk-in and was interviewed in Sep 2024. There were 3 interview rounds.

    Round 1 - Technical 

    (2 Questions)

    • Q1. Flow of micro services, annotations of boot
    • Q2. Sorting program
    Round 2 - Technical 

    (2 Questions)

    • Q1. Project flow,team management
    • Q2. Collection questions
    Round 3 - HR 

    (2 Questions)

    • Q1. Normal hr questions,about changing jobs and etc.
    • Q2. Salary negotiation
    Interview experience
    5
    Excellent
    Difficulty level
    -
    Process Duration
    -
    Result
    -
    Round 1 - Technical 

    (3 Questions)

    • Q1. Features of java 8
    • Ans. 

      Java 8 introduced several new features including lambda expressions, functional interfaces, streams, and default methods.

      • Lambda expressions allow for more concise code and enable functional programming.

      • Functional interfaces are interfaces with a single abstract method, used for lambda expressions.

      • Streams provide a way to work with sequences of elements and support parallel processing.

      • Default methods allow interfaces to...

    • Answered by AI
    • Q2. Questions from steam api
    • Q3. Spring life cycle flow
    Round 2 - Technical 

    (2 Questions)

    • Q1. Current work structure
    • Ans. 

      Currently working as a Java Developer at XYZ Company, responsible for developing and maintaining Java applications.

      • Developing and maintaining Java applications

      • Collaborating with team members on projects

      • Participating in code reviews and debugging

      • Implementing new features and enhancements

      • Troubleshooting and resolving technical issues

    • Answered by AI
    • Q2. Other technalogies I am using in my compnay

    Skills evaluated in this interview

    TCS Interview FAQs

    How many rounds are there in TCS Software Java Engineer interview?
    TCS interview process usually has 3 rounds. The most common rounds in the TCS interview process are Resume Shortlist, HR and Technical.
    What are the top questions asked in TCS Software Java Engineer interview?

    Some of the top questions asked at the TCS Software Java Engineer interview -

    1. How do you manage memory leakage in your applicati...read more
    2. Stream Api program to sort employees using citie...read more
    3. can we use lambda expression without functional interf...read more

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    ₹3.7 L/yr - ₹8 L/yr
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