Spring Interview questions and Answers

Last updated on Mar 11, 2022
  • Share
Spring Interview questions

Spring is one of the most popular open-source app development frameworks for enterprise-class Java. This framework enables developers to build robust applications from plain old Java objects (POJOs) and apply enterprise services to POJOs. Hundreds and thousands of developers globally use Spring to create easy to test, high-performing, and reusable code.

Our Spring interview questions for experienced professionals is a huge hit amongst potential candidates looking for new jobs. Have you read them yet?

Spring is lightweight in terms of size. Some of its core features can be used to develop any Java application, and there are in-built extensions on top of the Java EE platform for building web applications. Spring Framework is called a one-stop platform for building enterprise-level Java applications. Reading Spring interview questions before your next interview may significantly enhance your chances of grabbing your next job.

Most Frequently Asked Spring Interview questions

Here in this article, we will be listing frequently asked Spring Interview questions and Answers with the belief that they will be helpful for you to gain higher marks. Also, to let you know that this article has been written under the guidance of industry professionals and covered all the current competencies.

Q1. What is spring? Explain
Answer

Spring is one of the most popular open source app development frameworks for enterprise-class Java. Spring is lightweight in terms of size. Some of its core features can be used to develop any Java application, and there are in-built extensions on top of the Java EE platform for building web applications. Spring Framework is called a one-stop platform for building enterprise-level Java applications.

Q2. Explain the benefits of Spring framework?
Answer

Following are the benefits of using Spring Framework:

  • Enables developers to use POJO to build enterprise-class applications
  • Simpler testing processes
  • MVC framework provides good alternative to other frameworks, like Struts
  • Convenient API translates technology-specific exceptions
  • Lightweight IoC containers
  • Consistent transaction management interface
Q3. Explain the difference between IOC and Di?
Answer
  IOC DI
1. Program delegates someone else to drive the flow Program flow controlled by framework or runtime
2. General parent term Subset of IOC
Q4. What do you mean by dependency injection and how does it work?
Answer

Dependency Injection or DI is a design pattern that implements inversion or change of control for resolving dependencies. It is a process through which objects define their dependencies. Transferring the task of creating objects to someone else and using the dependency is called dependency injection. It can be done in 2 ways: constructor-based DI and setter-based DI.

Q5. List the modules used in Spring framework?
Answer

Spring framework has 7 modules.

  • The Core container module
  • Application context module
  • AOP module (Aspect Oriented Programming)
  • JDBC abstraction and DAO module
  • O/R mapping integration module (Object/Relational)
  • Web module
  • MVC framework module
Q6. What is the latest Spring version?
Answer
Spring Framework 5.0 GA
Q7. What do you mean by AOP?
Answer

Aspect-oriented programming or AOP is a programming approach that allows different properties of a program to determine how they are compiled into a program. You can use AOP with object-oriented programming or OOP.

Q8. Explain the different types of spring container?
Answer

Spring provides 2 types of containers:

  • Spring BeanFactory Container : It provides basic support for DI and is defined by org.springframework.beans.factory.BeanFactory interface. BeanFactory and related interfaces are available in Spring for backward compatibility with third-party frameworks.
  • Spring ApplicationContext Container : It adds enterprise-specific functionalities to interested event listeners. It is defined by org.springframework.context.ApplicationContext interface.
Q9. What is BeanFactory and ApplicationContext in Spring?
Answer

BeanFactory is the container that instantiates, manages and configures beans. Beans usually collaborate with each another and share dependencies, which are shown in the data used by the BeanFactory.

The ApplicationContext is the interface within a Spring application for offering configuration information to the application.

Q10. What do you mean by BeanFactory in spring?
Answer
Development History of Spring

Written by Rod Johnson initially, Spring framework was released first in June 2003 under the Apache 2.0 license. Spring was developed in response to the highly complex J2EE specifications. Potential employers feel critical information like this should be known to candidates preparing for Spring interview question and answer.

Advantage of Spring
  • Enables developers to use POJO to build enterprise-class applications
  • Simpler testing processes
  • MVC framework provides good alternative to other frameworks, like Struts
  • Convenient API translates technology-specific exceptions
  • Lightweight IoC containers and Consistent transaction management interface
Latest Version

Latest version 5.1.4 was released in Jan 2019

Reviewed and verified by Best Interview Question
Best Interview Question

With our 10+ experience in PHP, MySQL, React, Python & more our technical consulting firm has received the privilege of working with top projects, 100 and still counting. Our team of 25+ is skilled in...