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Deqode Java Developer Interview Questions, Process, and Tips

Updated 16 Jan 2025

Top Deqode Java Developer Interview Questions and Answers

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Deqode Java Developer Interview Experiences

3 interviews found

Java Developer Interview Questions & Answers

user image Pallavi Dhole

posted on 16 Jan 2025

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 Dec 2024. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. Can you explain the concepts of Object-Oriented Programming (OOP)?
  • Ans. 

    OOP is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.

    • OOP focuses on creating objects that interact with each other to solve problems.

    • Key concepts include encapsulation, inheritance, and polymorphism.

    • Encapsulation involves bundling data and methods that operate on the data into a single unit.

    • Inheritance allows classes to inherit at...

  • Answered by AI
  • Q2. What is the Spring Boot framework?
  • Ans. 

    Spring Boot is a framework for building Java-based applications with minimal configuration.

    • Spring Boot simplifies the process of creating stand-alone, production-grade Spring-based applications.

    • It provides a range of features including embedded servers, auto-configuration, and production-ready metrics.

    • Spring Boot allows developers to quickly set up and run applications with ease, reducing the need for manual configurat...

  • Answered by AI
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

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

Round 1 - One-on-one 

(6 Questions)

  • Q1. What is microservices different pattern?
  • Ans. 

    Microservices are a software architectural style that structures an application as a collection of loosely coupled services.

    • Each service is self-contained and can be developed, deployed, and scaled independently.

    • Communication between services typically occurs over lightweight protocols like HTTP or messaging queues.

    • Microservices allow for greater flexibility, scalability, and resilience compared to monolithic architect...

  • Answered by AI
  • Q2. Communication of microservices
  • Ans. 

    Communication between microservices is typically done through APIs or messaging systems.

    • Microservices communicate with each other using APIs, such as REST or gRPC.

    • Message brokers like Kafka or RabbitMQ are commonly used for asynchronous communication between microservices.

    • Service mesh tools like Istio can help manage communication between microservices by handling service discovery, load balancing, and security.

    • Event-d...

  • Answered by AI
  • Q3. Different annotations used in the springboot @Qualifier @Transactional etc
  • Ans. 

    Annotations like @Qualifier and @Transactional are used in Spring Boot for dependency injection and transaction management.

    • Annotations like @Qualifier are used to specify which bean to inject when multiple beans of the same type are present.

    • Annotations like @Transactional are used to mark a method as transactional, allowing for rollback in case of exceptions.

    • Annotations like @Component, @Service, @Repository are used f...

  • Answered by AI
  • Q4. Tell me about the exception handling in the spring boot project
  • Q5. Coding question given an array like {1,2,3,4,5,6,7,8,9} we have to rotate the array element in pair of 3 like {3 2 1 6 5 4 9 8 7} in this way
  • Q6. Different HTTP methods
  • Ans. 

    HTTP methods are used to indicate the desired action to be performed on a resource.

    • GET - Retrieve data from a server

    • POST - Submit data to be processed by a server

    • PUT - Update a resource on the server

    • DELETE - Remove a resource from the server

    • PATCH - Partially update a resource on the server

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Deqode Java Developer interview:
  • Microservices
  • Spring Boot
Interview preparation tips for other job seekers - This is for the Java developer interview you have to prepare for the core java and advance java like springboot and the microservices and the different patterens of the microservices like SAGA pattern circuit breaker pattern

Skills evaluated in this interview

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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 Apr 2024. There was 1 interview round.

Round 1 - Technical 

(3 Questions)

  • Q1. Static and dynamic poly, aggregator, memory of java ,
  • Q2. How asynchronous API create, @qualifier
  • Ans. 

    Asynchronous APIs in Java can be created using @Qualifier annotation to specify which bean to inject when multiple beans of the same type are present.

    • Use @Qualifier annotation along with @Autowired to specify the bean to be injected.

    • For example, if there are multiple beans of the same type, use @Qualifier("beanName") to specify which bean to inject.

    • This helps in resolving ambiguity when multiple beans of the same type

  • Answered by AI
  • Q3. Fail-safe and fail-fast

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepared for Java basic question and java code

Interview questions from similar companies

I applied via Naukri.com and was interviewed before Aug 2020. There was 1 interview round.

Interview Questionnaire 

7 Questions

  • Q1. Q1)Strong OOPS concept.
  • Ans. 

    Strong OOPS concept is essential for Java developers to write efficient and maintainable code.

    • Understanding of classes, objects, inheritance, polymorphism, and encapsulation

    • Ability to design and implement complex systems using OOPS principles

    • Experience with design patterns and SOLID principles

    • Knowledge of interfaces, abstract classes, and access modifiers

    • Familiarity with UML diagrams for modeling software systems

  • Answered by AI
  • Q2. Q2) exception handling, multitasking
  • Q3. Q3) collection frameworks internal hierarchical
  • Q4. Q4)java server side strong debugging knowledge required it must for selection.
  • Q5. 5)you need to specific on your answer and to the point
  • Q6. 6)Java utility classes
  • Q7. Spring MVC and spring boot all basic automation and bean internal working knowledge

Interview Preparation Tips

Interview preparation tips for other job seekers - Please find good place and take interview with cool mind if you don't ahe any questions answer at time of interview don't take stress say politely i don't know that fine

Don't be harrree while answering the question


I applied via Company Website and was interviewed in Jul 2020. There was 1 interview round.

Interview Questionnaire 

2 Questions

  • Q1. What is java
  • Ans. 

    Java is a high-level programming language known for its platform independence and object-oriented approach.

    • Java is widely used for developing desktop, web, and mobile applications.

    • It is known for its write once, run anywhere (WORA) capability.

    • Java uses a virtual machine (JVM) to execute code, providing portability across different operating systems.

    • It supports multithreading, exception handling, and dynamic memory allo...

  • Answered by AI
  • Q2. What is inheritance
  • Ans. 

    Inheritance is a mechanism in object-oriented programming where a new class is created from an existing class.

    • Allows for code reuse and promotes code organization

    • The new class (subclass) inherits properties and methods from the existing class (superclass)

    • Subclass can add new properties and methods or override existing ones

    • Example: A Car class can inherit properties and methods from a Vehicle class

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - iam join this java developer

Skills evaluated in this interview

I applied via Referral and was interviewed in Nov 2020. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. Write a program for sum of numbers?
  • Ans. 

    A program to calculate the sum of numbers.

    • Create a variable to store the sum.

    • Iterate through the numbers and add each number to the sum.

    • Return the sum.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - We have to prepare even the basic questions , basic question also matters !

Skills evaluated in this interview

Interview Questionnaire 

2 Questions

  • Q1. What's java?
  • Ans. 

    Java is a high-level, object-oriented programming language used to develop applications for various platforms.

    • Java is platform-independent and can run on any device with a Java Virtual Machine (JVM)

    • It is known for its security features and is commonly used for developing web applications, mobile apps, and enterprise software

    • Java code is compiled into bytecode, which can be executed on any platform that has a JVM instal...

  • Answered by AI
  • Q2. Why java?
  • Ans. 

    Java is a versatile, platform-independent language with a vast community and extensive libraries.

    • Java is object-oriented and easy to learn.

    • It has a vast community and extensive libraries.

    • It is platform-independent and can run on any device.

    • Java is secure and reliable.

    • It is used in various domains like web development, mobile app development, and enterprise applications.

    • Examples: Android apps, Spring framework, Hadoop,

  • Answered by AI

Skills evaluated in this interview

Interview Questionnaire 

1 Question

  • Q1. Few questions on rest API, microservices, java 8 core questions, spring MVC, Hibernate

I applied via Naukri.com and was interviewed before Sep 2020. There was 1 interview round.

Interview Preparation Tips

Interview preparation tips for other job seekers - Java basic interview questions

Interview Questionnaire 

5 Questions

  • Q1. About java collection api
  • Q2. String in java
  • Ans. 

    String is a class in Java used to represent a sequence of characters.

    • Strings are immutable in Java

    • String objects can be created using string literals or the new keyword

    • String class provides various methods for manipulating strings such as substring, replace, etc.

  • Answered by AI
  • Q3. Restful webservices , spring MVC flow, spring data, security in rest API.
  • Q4. Java8 new features ,stream api, lambda expression,
  • Q5. JSON, HashMap and HashTable, design pattern

Skills evaluated in this interview

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Deqode Interview FAQs

How many rounds are there in Deqode Java Developer interview?
Deqode interview process usually has 1 rounds. The most common rounds in the Deqode interview process are Technical and One-on-one Round.
How to prepare for Deqode 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 Deqode. The most common topics and skills that interviewers at Deqode expect are Java, OOPS, Hibernate, JDBC and Design Patterns.
What are the top questions asked in Deqode Java Developer interview?

Some of the top questions asked at the Deqode Java Developer interview -

  1. Different annotations used in the springboot @Qualifier @Transactional ...read more
  2. Can you explain the concepts of Object-Oriented Programming (OO...read more
  3. what is microservices different patte...read more

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