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. |
|
|||
|
| ||||
| Interview Questions and Answers for 'Spring' - 81 question(s) found - Order By Newest | ||||
 | ||||
 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 | ||||
| ||||
| 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 : | ||||
 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 | ||||
| Recently asked in TCS , Tech Mahindra, HCL , Accenture and Fidelity. | ||||
| ||||
| 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 : | ||||
| Discuss Correct / Improve j2ee spring mvc frameworks web applications architecture Asked in 11 Companies Basic frequent | ||||
| ||||
| 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 : | ||||
| Discuss Correct / Improve java spring framework mvc spring container architecture technical architect java architect technical lead ioc Asked in 2 Companies basic frequent | ||||
| Very frequently asked.Usually among first few questions. | ||||
| ||||
| 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 : | ||||
| 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 | ||||
| ||||
| Ans. Prototype scope - A new object is created each time it is injected/looked up. It will use new SomeClass() each time. Singleton scope - It is the default scope. The same object is returned each time it is injected/looked up. Here it will instantiate one instance of SomeClass and then return it each time. | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve Spring beans singleton bean scope prototype bean scope Asked in 1 Companies | ||||
| ||||
| Ans. Within message.properties file. | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve j2ee web application struts spring Asked in 1 Companies | ||||
| ||||
| 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 : | ||||
| Discuss Correct / Improve java spring beans | ||||
| ||||
| 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 : | ||||
| Discuss Correct / Improve j2ee spring mvc frameworks web applications beans beans scope at&t fidelity | ||||
| ||||
| 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 : | ||||
| Discuss Correct / Improve spring framework hibernate spring cache hibernate cache | ||||
| ||||
| Ans. Yes | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve spring beans Asked in 1 Companies | ||||
| ||||
| 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 : | ||||
| Discuss Correct / Improve j2ee spring mvc frameworks web applications | ||||
| ||||
| 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 : | ||||
| Discuss Correct / Improve j2ee spring mvc frameworks web applications spring configuration file Asked in 1 Companies | ||||
| ||||
| Ans. The default scope of bean is Singleton. | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve j2ee spring mvc frameworks web applications bean | ||||
| Very Frequently asked Spring question. | ||||
| ||||
| 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 | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve j2ee spring mvc frameworks web applications autowiring beans at&t ge Asked in 9 Companies frequent | ||||
| Frequently asked in Phone Interviews. | ||||
| ||||
| Ans. Singleton , Prototype , Request , Session , global-session | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve spring framework bean scope general electric ge | ||||
| Frequently asked in Phone Interviews. | ||||
| ||||
| Ans. By Name , By Type and Constructor. | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve java spring spring container dependency injection auto wiring auto wiring types general electric ge | ||||
| ||||
| 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 : | ||||
| Discuss Correct / Improve spring bean scope general electric ge singleton | ||||
| ||||
| 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 : | ||||
| Discuss Correct / Improve spring struts project lead technical lead techical architect | ||||
| ||||
| 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 : | ||||
| Discuss Correct / Improve spring web frameworks dependency injection autowired inject spring annotations ioc | ||||
| ||||
| 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 : | ||||
| Discuss Correct / Improve java singleton spring framework spring beans | ||||
| ||||
| Ans. All of the Above | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve spring spring beans spring bean scope | ||||
| ||||
| Ans. ApplicationContextAware | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve spring applicationcontext application context applicationcontextaware | ||||
| ||||
| Ans. Controller | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve spring frmaework spring mvc rest webservices | ||||
| ||||
| Ans. Spring Boot is Springs convention-over-configuration solution for creating stand-alone, production-grade Spring-based Applications. | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve Spring Boot Asked in 7 Companies | ||||
| ||||
| Ans. Spring Security is a powerful and highly customizable authentication and access control framework. It is the de facto standard for securing Spring-based applications. | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve Asked in 3 Companies | ||||
| ||||
| Ans. Have worked on Java 7 and Java 8, In Java 8 , Worked with streams , lambda expression and default methods. Have worked on both Spring Mvc and Spring Boot, using Spring dependency injection, Rest services , AOP , JDBC and Hibernate integration. Have worked on Rest services using Spring and Spring Boot. Have worked on SOAP web services too. | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve spring web services Asked in 1 Companies | ||||
| ||||
| Ans. No, there is no relationship between web.xml and spring.xml but you have to configure spring.xml in web.xml in order initialize beans when application starts up | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve spring web.xml spring.xml deployment descriptor Asked in 1 Companies | ||||
| ||||
| Ans. Spring Interceptor are Spring beans and hence they can inject other beans and can be used with other Spring frameworks concepts like AOP. | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve interceptors servlet filters spring interceptors vs servlet filters | ||||
| ||||
| Ans. Spring is a lightweight framework which gives in-build DI(Dependency injection) and IOC(Inversion of control) features. Where DI is used for injecting one bean into the another bean like Inheritance in Java and IOC is a controller which will control the flow of the bean like bean creation and so on. We will use Bean Factory and Application Context for configuring. | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve Asked in 1 Companies | ||||
| Frequently asked Spring interview question. | ||||
| ||||
| Ans. Core: [Core, Bean, Context, Expression Language] Web: [Web, Portlet, Servlet, etc] Data Access [JMS, JDBC, etc] AOP, Aspect | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve spring spring framework components Asked in 12 Companies | ||||
| ||||
Which of the following statement is not true ?
