Interview Questions and Answers for 'Spring' | Search Interview Question - javasearch.buggybread.com
Javasearch.buggybread.com

Search Interview Questions


 More than 3000 questions in repository.
 There are more than 900 unanswered questions.
Click here and help us by providing the answer.
 Have a video suggestion.
Click Correct / Improve and please let us know.
Label / Company      Label / Company / Text

   



Interview Questions and Answers - Order By Rating

   
Very frequently asked. Among first few questions in almost all interviews. Among Top 5 frequently asked questions. Frequently asked in Indian service companies (HCL,TCS,Infosys,Capgemini etc based on multiple feedback ) and Epam Systems
  Q61. Difference between == and .equals() ?Core Java
Ans. "equals" is the method of object class which is supposed to be overridden to check object equality, whereas "==" operator evaluate to see if the object handlers on the left and right are pointing to the same object in memory.

x.equals(y) means the references x and y are holding objects that are equal. x==y means that the references x and y have same object.

Sample code:

String x = new String("str");
String y = new String("str");

System.out.println(x == y); // prints false
System.out.println(x.equals(y)); // prints true

  Sample Code for equals

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     java   string comparison   string   object class   ==    equals   object equality  operator   == vs equals   equals vs ==     Asked in 294 Companies      basic        frequent
Try 6 Question(s) Test

 Q62. How can we manage Error Messages in the web application ?Solution
Ans. Within message.properties file.

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     j2ee   web application   struts   spring     Asked in 1 Companies

 Q63. What are the benefits of using Spring Framework ?Spring
Ans. Spring enables developers to develop enterprise-class applications using POJOs. The benefit of using only POJOs is that you do not need an EJB container product.

Spring is organized in a modular fashion. Even though the number of packages and classes are substantial, you have to worry only about ones you need and ignore the rest.

Spring does not reinvent the wheel instead, it truly makes use of some of the existing technologies like several ORM frameworks, logging frameworks, JEE, Quartz and JDK timers, other view technologies.

Testing an application written with Spring is simple because environment-dependent code is moved into this framework. Furthermore, by using JavaBean-style POJOs, it becomes easier to use dependency injection for injecting test data.

Spring is web framework is a well-designed web MVC framework, which provides a great alternative to web frameworks such as Struts or other over engineered or less popular web frameworks.

Spring provides a convenient API to translate technology-specific exceptions (thrown by JDBC, Hibernate, or JDO, for example) into consistent, unchecked exceptions.

Lightweight IoC containers tend to be lightweight, especially when compared to EJB containers, for example. This is beneficial for developing and deploying applications on computers with limited memory and CPU resources.

Spring provides a consistent transaction management interface that can scale down to a local transaction

  Sample Code for spring

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     java   spring framework   mvc   spring container   architecture   technical architect   java architect   technical lead  ioc     Asked in 2 Companies      basic        frequent

 Q64. Difference between Java beans and Spring Beans ?Spring
Ans. Java Beans managed by Spring IoC are called Spring Beans.

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     java   spring   beans

 Q65. What are different modules of spring ?
Spring
Ans. There are seven core modules in spring

Spring MVC
The Core container
O/R mapping
DAO
Application context
Aspect Oriented Programming or AOP
Web module

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     j2ee   spring   mvc   frameworks   web applications

Recently asked in TCS , Tech Mahindra, HCL , Accenture and Fidelity.
  Q66. Explain Flow of Spring MVC ?Spring
Ans. The DispatcherServlet configured in web.xml file receives the request.

The DispatcherServlet finds the appropriate Controller with the help of HandlerMapping and then invokes associated Controller.

Then the Controller executes the logic business logic and then returns ModeAndView object to the DispatcherServlet.

The DispatcherServlet determines the view from the ModelAndView object.

Then the DispatcherServlet passes the model object to the View.

The View is rendered and the Dispatcher Servlet sends the output to the Servlet container.

Finally Servlet Container sends the result back to the user.

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     j2ee   spring   mvc   frameworks   web applications   architecture     Asked in 11 Companies      Basic        frequent

 Q67. What is Spring configuration file?Spring
Ans. Spring configuration file is an XML file. This file contains the classes information and describes how these classes are configured and introduced to each other.

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     j2ee   spring   mvc   frameworks   web applications   spring configuration file     Asked in 1 Companies

 Q68. Q: What is default scope of bean in Spring framework?Spring
Ans. The default scope of bean is Singleton.

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     j2ee   spring   mvc   frameworks   web applications   bean

 Q69. What bean scopes does Spring support? Explain them.Spring
Ans. The Spring Framework supports following five scopes -

Singleton
prototype
request
session
global-session

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     j2ee   spring   mvc   frameworks   web applications   beans   beans scope   at&t  fidelity

Very Frequently asked Spring question.
  Q70. What is bean auto wiring?Spring
Ans. The Spring container is able to autowire relationships between collaborating beans. This means that it is possible to automatically let Spring resolve collaborators (other beans) for your bean by inspecting the contents of the BeanFactory without using and elements.

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     j2ee   spring   mvc   frameworks   web applications   autowiring   beans   at&t   ge     Asked in 9 Companies        frequent

Very frequently asked.Usually among first few questions.
  Q71. What is MVC ? Design
Ans. MVC is a Design Pattern that facilititates loose coupling by segregating responsibilities in a Web application

1. Controller receives the requests and handles overall control of the request
2. Model holds majority of the Business logic, and
3. View comprise of the view objects and GUI component

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     j2ee   mvc   mvc design pattern   design pattern   struts   spring   web application   web frameworks   ebay     Asked in 60 Companies      basic        frequent
Try 1 Question(s) Test

Frequently asked in Phone Interviews.
 Q72. What the Bean scopes provided by Spring ?Spring
Ans. Singleton , Prototype , Request , Session , global-session

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     spring framework   bean scope   general electric   ge

Frequently asked in Phone Interviews.
 Q73. What are the various Auto Wiring types in Spring ?
Ans. By Name , By Type and Constructor.

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     java   spring   spring container   dependency injection   auto wiring   auto wiring types   general electric   ge

 Q74. When should we use prototype scope and singleton scope for beans ?Spring
Ans. We should use singleton scope for beans when they are stateless and prototype when they are stateful.

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     spring   bean scope   general electric   ge  singleton

 Q75. Which web application framework you like and Why ?Framework
Ans. I like Spring as it comes with inbuilt Dependency Injection framework. It has great online community and support and is proven to work well with ORMs like Hibernate. If we are not working with ORM and DI, Struts 2 is also good.

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     spring   struts   project lead   technical lead   techical architect

 Q76. What is the difference betweeen @Inject and @Autowired ?Spring
Ans. @Autowired and @Inject are similar in terms of functionality they achieve. @Inject is part of a new Java technology called CDI that defines a standard for dependency injection whereas @Autowired is a Spring specific annotation for dependency injection.

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     spring   web frameworks   dependency injection   autowired   inject   spring annotations   ioc

 Q77. Should we have instance variables in the Spring Bean which has been scoped as Singleton ?Spring
Ans. No, if required we should only have final variables.Bean scoped singleton means that only one instance of the bean will be created and will be shared among different requests and hence instance variables will get shared too.

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     java   singleton   spring framework   spring beans

 Q78. What are some differences between Spring caching and Hibernate caching?Hibernate
Ans. Spring caching makes use of its intercepting capabilities to add caching to method calls. Therefore, the entire object is cached and reused. Hibernate, on the other hand, has more domain-specific knowledge of the Entity being cached and can handle the objects more appropriately.

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     spring framework   hibernate   spring cache   hibernate cache

 Q79. Which class provides the enumerated value for Bean Scope ?

a. BeanDefinition
b. ConfigurableBeanFactory
c. WebApplicationContext
d. All of the Above
Spring
Ans. All of the Above

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     spring   spring beans   spring bean scope

 Q80. Which of the following Interface needs to be implemented by any object that wishes to be notified of the ApplicationContext that it runs in ?

a. ApplicationContextAware
b. ApplicationContextUtils
c. ApplicationContext
d. Aware
Spring
Ans. ApplicationContextAware

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     spring   applicationcontext   application context   applicationcontextaware

 Q81. In Spring , Which class handles the Http requests for RESTful web services ?

a. Service
b. Model
c. Controller
d. Util
Spring
Ans. Controller

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     spring frmaework   spring mvc   rest   webservices

 Q82. Which of following is not Spring MVC annotation ?Spring
a. @Autowired
b. @Controller
c. @JoinColumn
d. @Transactional

Ans.c. @JoinColumn
 Q83. Spring MVC is a .. Spring
a. Model Framework
b. View Framework
c. GUI Framework
d. Web Framework

Ans.d. Web Framework
previous 30   

Help us and Others Improve. Please let us know the questions asked in any of your previous interview.

Any input from you will be highly appreciated and It will unlock the application for 10 more requests.

Company Name:
Questions Asked: