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VVDN Technologies Java Developer Interview Questions and Answers

Updated 26 Nov 2024

VVDN Technologies Java Developer Interview Experiences

2 interviews found

Java Developer Interview Questions & Answers

user image Aditya Sharma

posted on 26 Nov 2024

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
-
Result
Selected Selected

I applied via Approached by Company and was interviewed in Oct 2024. There was 1 interview round.

Round 1 - Technical 

(5 Questions)

  • Q1. Stream API related questions , methods etc.
  • Q2. What is Qualifier and Primary
  • Ans. 

    Qualifier and Primary are annotations used in Spring framework for dependency injection.

    • Qualifier annotation is used to specify which bean should be autowired when multiple beans of the same type are present

    • Primary annotation is used to specify the primary bean to be autowired when multiple beans of the same type are present

    • Qualifier can be used in combination with Autowired annotation to specify the bean name to be in...

  • Answered by AI
  • Q3. Spring boot annotations
  • Q4. Sort Array of 0 and 1
  • Ans. 

    Sort an array of 0s and 1s in linear time complexity.

    • Use two pointers approach - one from the start and one from the end.

    • Swap 0s to the left and 1s to the right until the pointers meet.

    • Time complexity: O(n), Space complexity: O(1).

  • Answered by AI
  • Q5. How do you handle code reviews
  • Ans. 

    I actively participate in code reviews to ensure code quality and learn from others.

    • I actively participate in code reviews by providing constructive feedback on others' code.

    • I also seek feedback on my own code to improve its quality and learn from others.

    • I follow coding standards and best practices during code reviews to maintain consistency and quality.

    • I use code review tools like GitHub pull requests or Bitbucket to

  • Answered by AI

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(3 Questions)

  • Q1. JAVA 8 question
  • Q2. Functional interface
  • Q3. Stream API's coding question

Java Developer Interview Questions Asked at Other Companies

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Q1. Sort 0 and 1 Problem Statement Given an integer array ARR of size ... read more
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Q4. Convert BST to Greater Sum Tree Given a Binary Search Tree (BST) ... read more
Q5. 2. What will happen if hashcode only returns a constant? How will ... read more

Interview questions from similar companies

I applied via Recruitment Consultant and was interviewed in Sep 2020. There was 1 interview round.

Interview Questionnaire 

2 Questions

  • Q1. Inheritance and types
  • Q2. Abstraction and class and object and real time project etc

Interview Preparation Tips

Interview preparation tips for other job seekers - Waste of timing and they disrespect to their hiring employers and I feel bad experience with the company

I applied via Campus Placement and was interviewed before Sep 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Questions about database, joints, queries,basic oops concepts

Interview Preparation Tips

Interview preparation tips for other job seekers - You just have to brush your basics,be confident in what you say
Round 1 - Technical 

(1 Question)

  • Q1. Deep questioning on microservies and core java

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare core concepts, Be strong in technical,
cloud knowledge is compulsory
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Comparable vs Comparator
  • Ans. 

    Comparable is an interface used for natural ordering, while Comparator is 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 sorted.

    • Comparator interface is used to define custom ordering of objects. It is implemented by a separate class that compares objects based on specific criteria.

    • Example: Sorting a list of ...

  • Answered by AI
  • Q2. Difference between List and Set
  • Ans. 

    List allows duplicate elements and maintains insertion order, while Set does not allow duplicates and does not maintain order.

    • List can contain duplicate elements, Set cannot

    • List maintains insertion order, Set does not guarantee order

    • List is implemented by classes like ArrayList, LinkedList, Set is implemented by classes like HashSet, TreeSet

    • Example: List list = new ArrayList<>(); Set set = new HashSet<>();

Answered by AI

Skills evaluated in this interview

I applied via Newspaper Ad and was interviewed in Sep 2021. There were 2 interview rounds.

Round 1 - Coding Test 

3 coding questions are given.Time 1 hr

Round 2 - Technical 

(1 Question)

  • Q1. Java collections.prepare all collections concepts

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare Java concepts. Practice coding questions.
Prepare Java concepts.Practice coding
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. What is multithreading
  • Ans. 

    Multithreading is the ability of a CPU to execute multiple threads concurrently, allowing for better performance and responsiveness.

    • Multithreading allows multiple tasks to be executed simultaneously on a single CPU.

    • Each thread has its own stack and runs independently, but shares the same memory space.

    • Example: A web server handling multiple requests concurrently using multithreading.

    • Example: A video player playing video...

  • Answered by AI
  • Q2. What is interface and abstraction
  • Ans. 

    Interface is a blueprint of a class that defines methods without implementation. Abstraction is a concept where only essential details are shown and irrelevant details are hidden.

    • Interface in Java is a reference type, similar to a class, that can contain only constants, method signatures, default methods, static methods, and nested types.

    • Abstraction is achieved in Java using abstract classes and interfaces. Abstract cl...

  • Answered by AI

Skills evaluated in this interview

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

I applied via Campus Placement and was interviewed before Oct 2023. There were 3 interview rounds.

Round 1 - Aptitude Test 

It was an intermediate level aptitude questions

Round 2 - Coding Test 

This was also intermediate

Round 3 - HR 

(1 Question)

  • Q1. That was a friendly round
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

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

Round 1 - Technical 

(2 Questions)

  • Q1. Diff between abstract class and interface
  • Ans. 

    Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.

    • Abstract class can have constructor, fields, and methods, while interface cannot have any of these.

    • A class can extend only one abstract class, but can implement multiple interfaces.

    • Abstract classes are used to define a common behavior among subclasses, while interfaces are used to define a contract for classes...

  • Answered by AI
  • Q2. Explain about handler methods
  • Ans. 

    Handler methods in Java are methods that are responsible for handling incoming requests and generating responses.

    • Handler methods are typically defined in classes annotated with @Controller or @RestController.

    • These methods are mapped to specific URLs using @RequestMapping or other mapping annotations.

    • Handler methods can have parameters such as HttpServletRequest, HttpServletResponse, or model attributes.

    • The return value...

  • Answered by AI

Skills evaluated in this interview

VVDN Technologies Interview FAQs

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

Some of the top questions asked at the VVDN Technologies Java Developer interview -

  1. How do you handle code revi...read more
  2. What is Qualifier and Prim...read more
  3. Sort Array of 0 an...read more

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VVDN Technologies Java Developer Interview Process

based on 3 interviews

Interview experience

5
  
Excellent
View more
VVDN Technologies Java Developer Salary
based on 14 salaries
₹3 L/yr - ₹8.5 L/yr
15% less than the average Java Developer Salary in India
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VVDN Technologies Java Developer Reviews and Ratings

based on 2 reviews

3.8/5

Rating in categories

1.0

Skill development

3.0

Work-life balance

2.0

Salary

1.0

Job security

3.0

Company culture

1.0

Promotions

1.0

Work satisfaction

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