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FRSPL Java Developer Interview Questions, Process, and Tips
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1 interview found
Anonymous
Selected
I applied via Approached by Company and was interviewed in Aug 2023. There were 4 interview rounds.
(6 Questions)
- Q1. Please tell me about yourself
- Q2. How much experience do you have in the financial industry
- Q3. How do you handle conflict between your team members
- Q4. Give an example where you were able to solve a conflict within your team. What was your learning from this incident?
- Q5. What are your expectations from our company?
- Q6. Are you a technical person or a pure managerial person? Are you an individual contributor?
(4 Questions)
- Q1. Questions related to immutability
- Q2. Questions related to Multi-threading and garbage collection
- Q3. Question related to streams API, sorting, average, min, max, range etc
- Q4. Java 8 specific questions related to static interfaces, default methods in interfaces etc.
(13 Questions)
- Q1. What are different types of cloning in javascript?
- Ans.
There are two types of cloning in JavaScript: Shallow cloning and Deep cloning.
Shallow cloning creates a new object and copies the references of the original object's properties.
Deep cloning creates a new object and recursively copies all nested objects and their properties.
Shallow cloning can be achieved using Object.assign() or the spread operator (...).
Deep cloning can be achieved using libraries like Lodash or by i
- Q2. How familar are you with FlexBox
- Q3. What do you mean by asynchronous operations and how do you handle them
- Ans.
Asynchronous operations allow tasks to be executed independently of the main program flow, improving performance and responsiveness.
Asynchronous operations are tasks that can run independently of the main program flow, allowing other tasks to continue without waiting for them to finish.
In Java, asynchronous operations can be handled using features like CompletableFuture, ExecutorService, and callbacks.
Example: Using Co...
- Q4. Difference between promise.all and promise.AllSettled
- Ans.
promise.all waits for all promises to be resolved or any to be rejected, while promise.allSettled waits for all promises to be settled (either resolved or rejected)
promise.all waits for all promises to be resolved or any to be rejected
promise.allSettled waits for all promises to be settled (either resolved or rejected)
promise.all will reject immediately if any promise is rejected, while promise.allSettled always resolv
- Q5. How quickly can you learn Angular in our project
- Q6. What is a bean in spring? What is a spring bean life cycle?
- Ans.
A bean in Spring is a Java object managed by the Spring IoC container. Spring bean life cycle includes instantiation, initialization, and destruction.
A Spring bean is a Java object that is instantiated, assembled, and managed by the Spring IoC container.
The life cycle of a Spring bean includes instantiation, initialization, in-use, and destruction phases.
Spring provides various ways to define beans, such as XML configu...
- Q7. What is an ORM framework?
- Ans.
ORM framework stands for Object-Relational Mapping framework, which is used to map objects in code to tables in a database.
ORM frameworks help developers to interact with databases using objects instead of SQL queries.
They provide a way to perform CRUD operations on database tables using object-oriented programming.
Popular ORM frameworks include Hibernate, JPA (Java Persistence API), and Entity Framework.
- Q8. What are different types of object relations we can have in Hibernate? Explain them
- Ans.
Different types of object relations in Hibernate include one-to-one, one-to-many, many-to-one, and many-to-many.
One-to-one: Each record in one table is related to only one record in another table.
One-to-many: Each record in one table can be related to multiple records in another table.
Many-to-one: Multiple records in one table can be related to only one record in another table.
Many-to-many: Multiple records in one tabl...
- Q9. Difference between lazy and eager initialisation. Pros and cons. Applications of them.
- Ans.
Lazy initialization delays the creation of an object until it is actually needed, while eager initialization creates the object immediately.
Lazy initialization can improve performance by only creating objects when necessary.
Eager initialization can lead to higher memory usage as objects are created upfront.
Lazy initialization is commonly used in singleton design pattern to delay the creation of the instance until it is...
- Q10. How do you pass an object in an API request body
- Ans.
Passing an object in an API request body involves serializing the object into JSON or XML format.
Serialize the object into JSON or XML format before sending it in the request body
Use libraries like Jackson or Gson in Java to convert the object to JSON
Set the content type of the request to application/json or application/xml
- Q11. What are different design patterns you are familiar with.
- Ans.
I am familiar with Singleton, Factory, Observer, and Strategy design patterns.
Singleton pattern ensures a class has only one instance and provides a global point of access to it.
Factory pattern creates objects without specifying the exact class of object that will be created.
Observer pattern defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updat...
- Q12. What are SOLID principles
- Ans.
SOLID principles are a set of five design principles in object-oriented programming to make software more maintainable, flexible, and understandable.
S - Single Responsibility Principle: A class should have only one reason to change.
O - Open/Closed Principle: Software entities should be open for extension but closed for modification.
L - Liskov Substitution Principle: Objects of a superclass should be replaceable with ob...
- Q13. What are ACID properties
- Ans.
ACID properties are a set of properties that guarantee the reliability of database transactions.
ACID stands for Atomicity, Consistency, Isolation, and Durability.
Atomicity ensures that either all operations in a transaction are completed successfully or none of them are.
Consistency ensures that the database remains in a consistent state before and after the transaction.
Isolation ensures that the concurrent execution of...
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Interview questions from similar companies
Selected
I was interviewed in Dec 2024.
(22 Questions)
- Q1. API Gateway implementation
- Q2. Circuit breaker implementation
- Q3. What is deadlock? How to avoid it?
- Q4. Explain equals() method
- Q5. How mongodb was integrated in your application?
- Q6. What is hibernate?
- Q7. Runnable vs Callable interface
- Q8. Which type of data is returned by Callable interface?
- Q9. HashMap internal working
- Q10. Concurrent HashMap internal working
- Q11. How to monitor health of your application?
- Q12. How to call an API in a Microservice architecture?
- Q13. Explain Profiles
- Q14. What is OpenFeign, and how is it used in microservices architecture?
- Q15. What is the implementation process for service registry and discovery?
- Q16. What are Spring boot actuators?
- Q17. Synchronous vs Asynchronous communication
- Q18. Explain Synchronized keyword
- Q19. What are the consequences of excessively using synchronized blocks and methods in Java?
- Q20. How can you determine the number of threads needed for your application?
- Q21. Explain Executor framework
- Q22. Explain BlockingQueue
(2 Questions)
- Q1. Why did you leave your previous company?
- Q2. Other basic questions asked regarding the relevant skills and technologies I have worked with.
Selected
I applied via Approached by Company and was interviewed in Dec 2024. There was 1 interview round.
(8 Questions)
- Q1. What improvements to interfaces were introduced in Java 8 that were missing in Java 7, specifically regarding static and default methods?
- Q2. Explain internal working of HashMap ? How to synchronize it ?
- Q3. Given a list of employees with their ratings, how can you sort the employees based on their ratings using the Java 8 Streaming API?
- Q4. Will the program compile if the parent class throws a runtime exception while the child class throws an arithmetic exception?
- Q5. In a Spring Boot application with two databases, how can you configure JDBC to specify which database to use?
- Q6. How to use a jetty server in your spring boot application ?
- Q7. Difference between @RequestParam and @PathVariable ?
- Q8. How would you handle a scenario where one microservice is awaiting a response from another microservice that is taking an extended time to respond?
Interview Preparation Tips
I applied via Company Website and was interviewed in Nov 2024. There were 2 interview rounds.
(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
(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
I applied via Naukri.com and was interviewed in Dec 2024. There was 1 interview round.
(8 Questions)
- Q1. How much exp in docker?
- Ans.
I have 2 years of experience working with Docker in various projects.
2 years of experience working with Docker in various projects
Proficient in creating Docker containers, managing images, and orchestrating containers using Docker Compose
Familiar with Docker Swarm and Kubernetes for container orchestration
Experience in troubleshooting Docker-related issues and optimizing container performance
- Q2. Do you have exp in Kubernetes?
- Ans.
Yes, I have experience in Kubernetes.
I have worked on deploying and managing applications on Kubernetes clusters.
I am familiar with creating and managing Kubernetes resources such as pods, deployments, services, and ingresses.
I have experience in using tools like kubectl and Helm for interacting with Kubernetes clusters.
I have implemented CI/CD pipelines using Kubernetes for automated deployment and scaling of applicat
- Q3. What is OOP?
- Ans.
OOP stands for Object-Oriented Programming, a programming paradigm based on the concept of objects.
OOP focuses on creating objects that contain data and methods to manipulate that data.
Encapsulation, inheritance, and polymorphism are key principles of OOP.
Examples of OOP languages include Java, C++, and Python.
- Q4. Types of polymorphism
- Ans.
Polymorphism in Java refers to the ability of a method to do different things based on the object it is acting upon.
Types of polymorphism in Java include method overloading and method overriding.
Method overloading is when multiple methods have the same name but different parameters.
Method overriding is when a subclass provides a specific implementation of a method that is already defined in its superclass.
- Q5. Thread in java
- Ans.
Threads in Java allow multiple tasks to run concurrently within a single program.
Threads are lightweight sub-processes that share the same memory space.
They are used to improve performance by allowing tasks to run simultaneously.
Examples include creating a new thread using the Thread class or implementing the Runnable interface.
- Q6. Knowledge in which spring modules
- Q7. What is spring profile
- Ans.
Spring profile is a way to segregate parts of your application configuration and make it only available in certain environments.
Spring profiles allow you to define different configurations for different environments such as development, testing, and production.
You can use @Profile annotation to specify which beans should be loaded based on the active profile.
Profiles can be activated in various ways such as through app...
- Q8. What is @PreAuthorize and @PostAuthorize
- Ans.
Annotations used in Spring Security to apply authorization rules before and after a method is called.
Used in Spring Security to define authorization rules
@PreAuthorize is used to apply authorization rules before a method is called
@PostAuthorize is used to apply authorization rules after a method is called
Both annotations support SpEL expressions for defining rules
Interview Preparation Tips
- Basics in java
- Spring security
- Spring Boot
- Docker
- Cloud Computing
Selected
I applied via Naukri.com and was interviewed in Dec 2024. There was 1 interview round.
(6 Questions)
- Q1. Java 8 , java 11 and java 17 features?
- Ans.
Java 8 introduced lambda expressions, Java 11 added local-variable syntax for lambda parameters, and Java 17 included sealed classes and pattern matching.
Java 8 introduced lambda expressions for functional programming.
Java 11 added local-variable syntax for lambda parameters to simplify code.
Java 17 included sealed classes to restrict inheritance and pattern matching for instanceof checks and type casts.
- Q2. Dispatcher servlet, design patterns
- Q3. @SpringbootApplication annotation, actuators
- Q4. String Coding question with java 8 features such as lambda function and stream api
- Q5. Number of words in a string
- Ans.
Count the number of words in a given string.
Split the string by spaces and count the number of resulting elements.
Handle edge cases like multiple spaces or empty strings.
Consider punctuation marks as part of words unless specified otherwise.
- Q6. Microservice design patterns
I applied via Naukri.com and was interviewed in Nov 2024. There was 1 interview round.
(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
- Q2. Static block related questions
- Q3. Arraylist and linkedlist question
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Dec 2024. There was 1 interview round.
(2 Questions)
- Q1. What are virtual threads and its uses
- Q2. Differenciate deep cloning vs shallow cloning with a code
I applied via Job Fair and was interviewed in Oct 2024. There were 4 interview rounds.
Onlin test consist pf easy numerical questions
Easy questions not so difficult
(3 Questions)
- Q1. Java oops concept
- Q2. Basic sprophramming questions
- Q3. Networking firewall cisco
(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
Interview Preparation Tips
- Networking
I applied via Company Website and was interviewed in Oct 2024. There were 3 interview rounds.
First round is quit easy
2 coding question based on dsa
(2 Questions)
- Q1. Explain different phases of sdlc
- Ans.
SDLC stands for Software Development Life Cycle, which consists of different phases from planning to maintenance.
1. Planning phase involves defining project scope, requirements, and creating a project plan.
2. Analysis phase focuses on gathering and analyzing requirements to create a detailed system design.
3. Design phase involves creating a high-level design, detailed design, and architecture for the software.
4. Implem...
- Q2. 4 paillers of datastructure.
- Ans.
The 4 pillars of data structure are arrays, linked lists, stacks, and queues.
Arrays: Data structure that stores a collection of elements with a fixed size.
Linked Lists: Data structure where each element points to the next element in the sequence.
Stacks: Data structure that follows the Last In First Out (LIFO) principle.
Queues: Data structure that follows the First In First Out (FIFO) principle.
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