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HCL Group Java Developer Interview Questions and Answers
6 Interview questions
The Stream API in Java enables functional-style operations on sequences of elements, enhancing data processing capabilities.
Streams represent a sequence of elements and support various operations like filter, map, and reduce.
Example: List<String> names = Arrays.asList('Alice', 'Bob', 'Charlie'); names.stream().filter(name -> name.startsWith('A')).forEach(System.out::println);
Streams can be created from co...
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 ...
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 ...
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.
What people are saying about HCL Group
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 interf...
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 d...
HCL Group Java Developer Interview Experiences
4 interviews found
Anonymous
I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.
(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...
- Q2. Difference between arraylist and linked list
- 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...
- 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.
- 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 ...
- 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 ...
- Q7. How stream API works
- Q8. Benefits of springboot over spring
- Q9. Difference between throw and throwable
Interview Preparation Tips
Skills evaluated in this interview
(2 Questions)
- Q1. Good interview in java
- Q2. Good interview in java1
(2 Questions)
- Q1. Ctc discussion also fine
- Q2. Ctc discussion also fine1
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Feb 2022. There was 1 interview round.
(1 Question)
- Q1. Basic Java Question on Streams Understanding of your current project. How you projects works end to end. Spring Boot basic knowledge. You should be able explain your project and your roles and responsibili...
Interview Preparation Tips
Mention only those tech stack on which you have knowledge and experience.
I applied via Naukri.com and was interviewed in Nov 2021. There were 2 interview rounds.
Java MCQ questions
(1 Question)
- Q1. Knowledge on Java language
Interview Preparation Tips
Interview questions from similar companies
I applied via Approached by Company and was interviewed before May 2018. There were 6 interview rounds.
Interview Questionnaire
5 Questions
- Q1. This is face to face interview... They are observing our behaviour... Attitude... Etc
- Q2. Introduce u r self....
- Ans.
I am a dedicated and hardworking individual with a passion for learning and growth.
I have a Bachelor's degree in Business Administration from XYZ University.
I have 3 years of experience working in marketing and sales roles.
I am proficient in Microsoft Office Suite and have strong communication skills.
I am a team player and enjoy collaborating with others to achieve common goals.
- Q3. U r carrier objections
- Ans.
My career objectives focus on continuous growth, contributing to team success, and making a positive impact in my field.
Aim to develop expertise in my field, such as becoming a certified project manager.
Seek leadership opportunities to guide and mentor junior team members.
Aspire to work on innovative projects that challenge my skills and creativity.
Desire to contribute to a company's mission, like improving customer sa...
- Q4. About TCS
- Q5. Why should u select TCS
- Ans.
TCS is a global leader in IT services with a strong reputation for innovation and client satisfaction.
TCS has a proven track record of delivering high-quality services to clients worldwide.
TCS offers a wide range of opportunities for career growth and development.
TCS values diversity and inclusion, creating a supportive work environment for employees.
TCS invests in cutting-edge technologies and training programs to kee...
Interview Preparation Tips
Experience: Any kind of topic u cn select... Sales, accounts, service
Round: Test
Experience: Aptitude test... Mathematic and problem solving... General knowledge is very important
Round: Telephonic
Experience: This is final round... BH directly interact with us...
General Tips: Be confident... Be clam.... Keep smiling face... That is the way to win
Skills: Communication, Body Language, Leadership, Presentation Skills, Time Management
Duration: <1 week
I applied via Company Website and was interviewed before Jun 2020. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. GL related questions
- Q2. Comfortable for night shifts
- Ans.
Yes, I am comfortable with night shifts and have experience working during those hours.
I have worked night shifts in my previous job and have adapted to the schedule
I am a night owl and prefer working during those hours
I understand the importance of being alert and focused during night shifts
I am willing to adjust my sleep schedule to accommodate night shifts
Interview Preparation Tips
I applied via Naukri.com and was interviewed before Mar 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. Talk about any topic for atleast 3mins
- Ans.
Exploring the impact of technology on education and how it shapes learning experiences for students today.
Technology enhances accessibility to educational resources, e.g., online courses from platforms like Coursera.
Interactive tools like Kahoot! and Quizlet make learning engaging and fun for students.
Virtual classrooms enable remote learning, allowing students to connect globally, especially during the pandemic.
Artifi...
Interview Preparation Tips
I applied via LinkedIn and was interviewed before Jul 2021. There were 2 interview rounds.
Easy logical questions
basic quant
Easy level coding questions
Counting frequency of alphabets
Interview Preparation Tips
Hoisting
Siddhesh Hirulkar
Interview Questionnaire
1 Question
- Q1. How to use multiple dispatch in redux?
- Ans.
Multiple dispatch is not a feature of Redux. It can be achieved using middleware or custom logic.
Middleware like redux-thunk or redux-saga can be used to dispatch multiple actions based on a single action.
Custom logic can be implemented in the reducer to handle multiple actions based on a single action type.
For example, a single 'ADD_ITEM' action can trigger multiple actions like 'UPDATE_TOTAL', 'UPDATE_HISTORY', etc.
M...
Skills evaluated in this interview
I applied via Campus Placement and was interviewed before Jun 2020. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Simple program
- Q2. I wrote a simple program in C
Interview Preparation Tips
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HCL Group Interviews By Designations
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Overall Interview Experience Rating
based on 2 interview experiences
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HCL Group Java Developer Reviews and Ratings
based on 18 reviews
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