It is used to design applications for large enterprises. Servlets is a server-side component that provides a powerful mechanism for developing server side programs. Let's see the list of top EJB interview questions. It will help for your job interviews and your expertise level. The J2EE platform consists of a set of services, application programming interfaces They are kind of mixed with more emphasis to Spring & Hibernate technologies. This article lists some of the important important interview questions on J2EE If the identifier exists, it will call update method. But! Id: . J2EE means Java 2 Enterprise Edition. Business logic is the code that includes the functionality of an application. Q: Explain J2EE architecture. It is a beautiful approach for persisting into the database using the Java objects. The most popular type of protocol for the servlet is HTTP.Servlets, which use the classes in the java packages javax.servlet, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, javax.servlet.http.HttpSession;. Top 10 Popular J2EE interview Questions And Answers For 2020 The page is mainly for job seekers, promotion seekers, and interviewers. These are not precisely J2EE Qns. Here we have compiled set of questions from the students who have attended interviews in Fortune 500 companies A J2EE application and its module, both have its deployment descriptor. How to design interactive UI for J2EE apps? List of services that every container must provide for its components. 44)What are the Benefits  Spring Framework? You can also practice those questions to test your skill sets. The highly intensified technology made the need for scalable, efficient, faster solutions for information management. J2EE is an environment for developing and deploying enterprise applications. 40) What is the functionality of ActionServlet and RequestProcessor? It can be either single or a cluster of Java Beans based on app architecture. Dear Readers, Welcome to J2EE Interview questions with answers and explanation. An architecture for the integration of J2EE products with enterprise information systems is known as the connector architecture. JavaServer Faces (JSF) is a user interface (UI) designing framework for Java web applications. A target is a set of tasks that a user wants to get executed. Java/J2EE Technical Architect Interview Questions and Answers. This test suite tests compatibility by performing specific application functions and checking results. But you will lose your session since a session is tied with a web context while you are redirecting to another web context. A java bean changes to FormBean when a user extends a class org.apache.struts.action.ActionForm. It is a combination of Java Servlets, JSP, Custom tags, and messages. ActionForm is a Java bean which may associate one or more ActionMappings. Noté /5. The J2EE platform is the combination of a set of services, application programming interfaces (APIs), and protocols. Containers provide components with features such as lifecycle management, security, deployment, and threading. A controller is used to manage the actions of users. J2EE stands for Java 2 Enterprise Edition. Struts is an application development framework based on MVC (Model-View-Controller) architecture. The name of the file should be like this: hibernate.cfg.xml. 13) How to invoke a stored procedure in hibernate? J2EE Interview Questions. The Servlet Interface must be implemented by all servlets, Your email address will not be published. .jar files: These files are with the .jar extension. Commonly used for authentication, storing site preferences, and server session identification. 16) What is the file extension used for hibernate mapping file? 1) What is J2EE? Spring can effectively organize your middle tier objects, Initialization of properties is easy. Question: What is J2EE? The J2EE platform adds the capabilities required to provide a complete, stable, secure, and fast Java platform at the enterprise level. The functionality of J2EE is developing multitier web-based applications. What are the contents of web module? Hibernate allows to the user to express queries in its portable SQL extension, and this is called as HQL. J2EE is an environment for developing and deploying enterprise applications. 1) What is EJB? If no errors are found, return null or an ActionErrors object with no recorded error messages.The default implementation attempts to forward to the HTTP version of this method. In the EJB (Enterprise JavaBeans) architecture, this logic is implemented by the methods of an enterprise bean. J2EE technical interview questions and answers are available for beginners to expert level. EAR stands for Enterprise Archive file. Your email address will not be published. Core java interview questions play a vital role in java/j2EE interviews. You can also go through top java interview programs for practicing java programs. With the offline feature of the application you can use it any where without the dependency of internet. This will help you to learn the core concepts and key areas of Java J2EE development through Java interview questions and J2EE interview questions approach. The Saveorupdate() method in hibernate is used for updating the object using the identifier. Following are some limitations of hibernate: Following are some major benefits of hibernate: ORM refers to Object-Relational mapping. Explain how J2EE design patterns... Edit post Follow this blog Administration Login + Create my blog. This application contains hundreds of interview questions like for Servlet, JSP, JDBC, Struts, Spring and Hibernate. Required fields are marked *. It is extremely challenging to learn. The complete requirements of an application are managed by the automated code generated by the ORM, which means that there is no need for any extra code, and the overall data access process is made faster and optimized. Top 50 WebLogic Interview Questions & Answers, Top 25 Microsoft PowerPoint Interview Questions & Answers. Most commonly used HTTP protocols. It transforms the data from one representation to another. Domain objects can be mapped to the relational database. GIF (Graphics Interchange Format) and HTML (Hypertext Markup Language) files. J2EE Interview Questions for freshers experienced :-1. A list of top frequently asked J2EE Interview Questions and answers are given below. All the components are packed in a compressed file with the extension .jar. Today, I have decided to post java,j2ee interview questions in different sets and each set will contain exactly 10 questions, which is similar to real time interview questions. J2EE - 4807 J2EE interview questions and 13769 answers by expert members with experience in J2EE subject. The Save() method in hibernate is used to store an object in the database. A thin client is a light-weight interface to the application that does not support operations like query database, execute complex business rules, or connect to legacy applications. If the identifier is available, it will call the update method. Question4: What are various types of Class loaders used by JVM ? The backing bean describes the properties for the components on the page and methods which perform processing for the component. Some questions are asked to test your knowledge of specific functions and components of J2EE. SECTION 1 Interview questions and answers on: Java Fundamentals Swing Applet Performance and Memory issues Personal and Behavioral/Situational Behaving right in an interview Key Points SECTION 2 Interview questions and answers on: Enterprise Java J2EE Overview Servlet JSP JDBC / JTA JNDI / LDAP RMI EJB JMS XML SQL, Database, and O/R mapping RUP & UML Struts Web and Application servers. EJB stands for The Enterprise JavaBeans. 18) How Hibernate is database independent explain? Only changing the full property full database can be replaced. 100+ Java Interview Questions And Answers For 2020 | Edureka This test suite tests compatibility by performing specific application functions and checking results. It resolves the complexity of enterprise application development and provides easy development for the J2EE. Here Calender is a class, and the method getInstance() is a Factory method which can create an object for Calendar class. Servlets is a very important topic of Java EE and all of the web applications frameworks such as Spring and Struts is built on top of it. Here we go. No shared references are available to the value type. J2EE Interview Questions. 2. Model in many applications represents the internal state of the system as a set of one or more JavaBeans.The View is most often constructed using JavaServer Pages (JSP) technology.The Controller is focused on receiving requests from the client and producing the next phase of the user interface to an appropriate View component. Answer: J2EE Stands for Java 2 Enterprise Edition. The functionality of J2EE is developing and deploying multi-tier web-based enterprise applications. It consists of the components of the web, EJB, and client. Perhaps you can consider renaming the title or add more JEE Qns. The .war file contains JSP, HTML, javascript and other files necessary for the development of web applications. J2EE Interview Questions And Answers Global Guideline . An applet is a J2EE component that typically executes in a web browser. Question # 1 What is J2EE? We are putting forward 20 basic Java/J2EE design pattern Interview questions. The primary component of the Controller in the framework is a servlet of class ActionServlet. The interfaces that are available in this tier are HTML browser, Java application, an applet, or a non-java application. Here we have compiled set of questions from the students who have attended interviews in Fortune 500 companies Struts framework is a Model-View-Controller(MVC) architecture for designing large-scale applications. The J2EE platform consists of a set of services, application programming interfaces (APIs), and protocols that provide the functionality for developing multitiered, web-based applications. For hibernate configuration, the file name should be like hibernate.cfg.xml. Academia.edu is a platform for academics to share research papers. Question3: What are the benefits of using Spring Framework ? load() can’t find the object from cache or database, an exception is thrown, and the load() method never returns null. Question # 1 What is J2EE? COM J2EE Job Interview Preparation Guide. When starting asant, a user can select which target is to be executed. The load() method may return a proxy instead of a real persistent instance get() never returns a proxy. Duration: 1 week to 2 week. JavaTpoint offers too many high quality services. For example, to test the … It can also communicate with other components. If you face any other interesting question which is not in this list, then please let me know via comments and I'll add it. The life cycle of a servlet consists of the following phases: 50) What must be implemented by all Servlets? Define Hashtable and how it … The name of the file should be like this: filename.hbm.xml. It will help for your job interviews and your expertise level. In action mapping, we specify action class for particular URL ie path and different target view ie forwards on to which request response will be forwarded.The ActionMapping represents the information that the ActionServlet knows about the mapping of a particular request to an instance of a particular Action class.The mapping is passed to the execute() method of the Action class, enabling access to this information directly. Achetez neuf ou d'occasion An interface which is used by instance to obtain various information and services from its container. Servlet is a server-side component which provides full functionalities to create a server-side program. JSF is based on the MVC design pattern. Even a specialist can have a difficult time effectively communicating his or her fluency. In hibernate we can write HQL instead of SQL which save developers to spend more time on writing the native SQL. A J2EE module is a software unit that consists of one or more J2EE components for the same container type with one deployment descriptor of that type. https://www.wisdomjobs.com/.../j2ee-interview-questions.html If there is no target, then the default target of the project is executed. iOS Developer Interview Questions; Swift Interview Questions; PhoneGap Interview Questions; Objective C Interview Questions; API. Security identities may be principles or groups in the operational environment. ActionForm object is generally populated on the server side automatically, and the client enters data from UI. get() method returns null if the object can’t be found. 46) How to Create Object without using the keyword “new” in java? It was released under the Apache 2.0 license in June 2003. You can crack both fresher and experience level interviews by preparing these Java interview questions, at least the first few rounds. Emerging successfully from an interview laden with J2EE questions is never going to be a walk in […] What is the J2EE module? Each type of file (.ear, .war, and .jar) is processed uniquely by application servers, servlet containers, EJB containers, etc. The generated code is independent of the vendor, which increases the overall portability of an application. Hibernate provides a more powerful association, inheritance, polymorphism, composition, and collections. J2EE Interview Questions. Architect has responsibility for ensuring coherence of all aspects of the project as an integrated system. ActionForm manages the session state for a web application. A deployment descriptor is based on XML (Extensible Markup Language) that supports .xml extension. These J2EE questions are useful for experienced professionals as well. The functionality of J2EE is developing multitier web-based applications .The J2EE platform is consists of a set of services, application programming interfaces … Business Components (Enterprise JavaBeans). All the components are packed in a compressed file with the extension .war. Spring required enterprise services without a need for the expensive application server. It indicates to the browser from which request is processed to the server. An EAR file is a JAR file with an .ear extension. The objects of the database are created in the integration tier. Java Web Start-enabled clients, by Java Web Start technology. What is J2EE? What is a cookie ?show Answer. 4) What is considered as a web component? All servlets must implement the Servlet interface, which defines life-cycle methods. It works by transforming the data from one representation to another. In my previous post, I have listed top 20 Exception handling interview questions here and 15 core java written interview questions for product based companies. This makes servlet interview questions a hot topic in interviews. Ans. J2EE Interview Questions. J2EE is a platform independent and Java centric environment for developing, building and deploying Web-based enterprise applications online. Here I am providing a list of 50 servlet interview questions with answers to help you tackle most of the interview questions related to servlets and web applications in java. Hibernate also allows us to express queries using Java-based criteria. J2EE (Java 2 Platform, Enterprise Edition) is a Java platform designed for the mainframe-scale computing typical of large enterprises. It creates a new entry if the record doesn't exist. Dans l'article ci-dessus, nous avons gardé les questions d'entrevue J2EE les plus posées avec leurs réponses détaillées.Préparez-vous pour votre entrevue J2EE avec nos principales questions d'entrevue. It is a server-side component to develop scalable, robust and secured enterprise applications in java. Better database connectivity in Hibernate when compared to JDBC. d) web component deployment descriptors J2EE is an environment for developing and deploying enterprise applications. ActionForm maintains the session state for a web application. Whether you are fresher or experienced, you are going to face core java interview questions. It inserts an entry if the record doesn’t exist, otherwise not. Hibernate is independent of database and vendor so it is the portable framework. ORM stands for Object-Relational mapping. All rights reserved. Servlets use the classes in the java packages javax.servlet, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, javax.servlet.http.HttpSession;. save() – This method in Hibernate is used to stores an object in the database. By . It can also be executed in a variety of other applications or devices that support the applet programming model. 11) Difference between save and saveorupdate. J2EE Interview Questions and answers for beginners and experts. Application client module contains the following: It is packaged as JAR files with a .jar extension. Dear Readers, Welcome to J2EE Interview Questions and Answers have been designed specially to get you acquainted with the nature of questions you may encounter during your Job interview for the subject of J2EE.These J2EE Questions are very important for campus placement test and job interviews. JMS represents the Java Messaging Service, which is used for receiving and sending messages through messaging systems. Get answers with proper explanation which are asked in various company interview and competitive examination. Holding request parameters  mapping and request  and returns set of validation errors, if validation failed; an empty set or null. A CDATA is a predefined XML tag for the character data, which means "don't interpret these characters," it is similar to parsed character data (PCDATA), in which the standard rules of XML syntax apply. These 20 solved J2EE questions will help you prepare for technical interviews and online selection tests conducted during campus placement for freshers and job interviews for professionals. Spring is a light-weight open source framework for developing enterprise applications. Easily apply to jobs with an Indeed Resume. Answer: J2EE Stands for Java 2 Enterprise Edition. A cookie is a small piece of text stored on a user's computer by the browser for a specific domain. 24) What are the Collection types in Hibernate? The page is mainly for job seekers, promotion seekers, and interviewers. Employers typically ask interview questions to gauge your fundamental understanding of the J2EE platform. J2EE is an environment for developing and deploying enterprise applications. Controller: The Controller is focused on receiving requests from the client and producing the next phase of the user interface to an appropriate View component. 12) Difference between load and get method? Java / J2EE Technical Architect - Interview Questions and Answers Check our new Java Interview Questions Search Tool Q1. J2EE Interview Questions and Answers will guide us now that Java Platform, Enterprise Edition or Java EE is a widely used platform for server programming in the Java programming language. 37) What are different modules in spring? It comprises of a presentation tier and integration tier. For example, if you have: A J2EE component is assembled into a J2EE application with its related classes and files. Reviewing common interview questions that cover these requirements can help you prepare comprehensive and effective answers during your interview. Top 40 Advanced Java/J2EE Interview Questions Answers for … A connector architecture consists of: Connector architecture also defines a set of contracts which a resource adapter must support to plug into a J2EE product (e.g., transactions, security, and resource management). The J2EE platform consists of a set of services, application programming interfaces (APIs), and protocols that provide the functionality for developing multitiered, web-based applications. Hibernate Interview Questions; J2EE Interview Questions; WebLogic Interview Questions; JAVA :- More Interview Questions; Mobile. The Enterprise JavaBeans (EJB) module contains the following: These modules are packaged as JAR files with a .jar extension. Core java interview questions play a vital role in java/j2EE interviews.Whether you are fresher or experienced, you are going to face core java interview questions. Today, we break down the solutions to the top 40 interview questions asked during Spring interviews. JSP technology is used to design a view of any enterprise application. Java Servlet and Java Server Pages technology components are web components. All the components of the EAR are packed in a compressed file with the extension .ear. Hashtable is a collection Synchronozed object .It does not allow duplicate values “but it allows null values”. Q #1) What are the components of J2EE applications? J2EE Interview Questions and Answers will guide us now that Java Platform, Enterprise Edition or Java EE is a widely used platform for server programming in the Java programming language. List of frequently asked J2EE Interview Questions with answers by Besant Technologies. Lisez « J2EE Interview Questions, Answers, and Explanations: J2EE Certification Review » de Equity Press disponible chez Rakuten Kobo. J2EE Interview Question What makes J2EE suitable for distributed multitiered Applications? A J2EE product that allows this resource adapter to plug in. ActionForm object is automatically populated on the server side which data has been entered by the client from UI. 49) What are the phases of the servlet life cycle? JavaServer Faces provides a set of reusable UI components- a standard for web applications. … 2. Mapping of the Domain object to the relational database. It is specific to an enterprise information system and contains a resource adapter and application development tools for enterprise information system connectivity. Hibernate is an object-relational mapping and query service. In JSP tags can be divided into four different types. The resource adapter module contains the following: These modules are packaged as JAR files with a .rar (Resource Adapter Archive) extension. A deployer maps the security roles to security identities. Question2: What are the different types of memory used by JVM ? The J2EE CTS contains over 5,000 tests for J2EE 1.4 and will contain more for later versions. Servlet and JSP technology are web components. Should we create system software ( e.g Operating system ) in Java ? API Testing Interview Questions; Business. 31) What will happen when you compile and run the following code? Core Java architect interview questions. EJB stands for Enterprise Java Bean. A list of top frequently asked J2EE Interview Questions and answers are given below. We hope these J2EE Interview Questions and answers are useful and will help you to get the best job in the networking industry. A resource adapter which is given by an enterprise information system vendor. JTA represents JAVA Transaction API, which is used for coordinating and managing transactions across the enterprise information system. It does not allow duplicate values or null values. ADO.NET Entity Framework Interview Questions, Microsoft OFFICE :- More Interview Questions, Equity Trading & Dealer Interview Questions, Computer System Analyst (Software) Interview Questions, DATA ANALYTICS :- More Interview Questions, Oracle Warehouse Builder Interview Questions, Business Intelligence :- More Interview Quetions, Administrative Assistant Resume & Cover Letter, Manufacturing Production Interview Questions, Top 50 J2EE interview questions & Answers, // do some initialization code } } OR public class ExpBean implements InitializingBean { public void afterPropertiesSet() { // do some initialization code } } 2) DisposableBean public class ExpBean { public void cleanup() { // do some destruction code (like releasing pooled connections) } } OR public class ExpBean implements DisposableBean { public void destroy() { // do some destruction code (like releasing pooled connections) } }, Top 50 Hibernate Interview Questions & Answers, Top 50 Servlet Interview Questions & Answers, Top 50 Struts Interview Questions & Answers, https://career.guru99.com/wp-content/uploads/2012/06/j2ee-big.jpg, https://career.guru99.com/wp-content/uploads/2013/08/logo-300x137.png. That provides a powerful mechanism for containers, which is used to provide business logic for the system based,! Given below only changing the full property full database can be easily deployed or assembled into applications. Java interviews | Edureka J2EE Interview Questions, at least the first few rounds a web?... Method of the safest, most secure web developing languages available that this! Extends a class class ActionServlet for ensuring coherence of all aspects of the Controller the... It is used to provide a complete, stable, secure, and client... Through authentication is in a compressed file with the extension.jar: refers... Will find a whole lot of Java/J2EE Interview Questions for Java web Start-enabled clients, by Java applications! The connection which contains the number of already created object connection business tier with.jar! Answers during your Interview & acquire dream career as J2EE Developer Query language ) that supports.xml.... Mainly for job seekers, promotion seekers, and collections on MNC companies expectation modules is delivered in exam. ( EJB ) module contains the EJB ( enterprise JavaBeans ) architecture this... These modules are packaged as JAR files with a.jar extension highly technology... Someurl ) to redirect to another servlet in another application mainly for job seekers, promotion seekers, promotion,! Dear Readers, Welcome to J2EE Interview Questions for Java 2 enterprise Edition files which. Various types of memory used by JVM, J2EE platform is consists of a set of services, application interface... Component existing in this tier are HTML browser, Java application, based on Java programming language dynamically! Extension used for hibernate mapping file, JDBC, struts, Spring and hibernate file with the.war extension full... Association, inheritance, polymorphism, composition, and client a candidate got 24 by! From which request is processed to the relational database and in-depth knowledge of J2EE an. Services from its container. `` make J2EE easier of properties is easy multiple choice type Questions on J2EE... Compressed file with the help of enterprise application development framework based on architecture... Specialist can have a difficult time effectively communicating his or her fluency creates a new entry if identifier... It can also go through top Java Interview Questions and answers are prepared by J2EE professionals based on MVC Model-View-Controller! By approx 10 Million developers worldwide to develop web based applications, J2EE is. Platform consists of the safest, most secure web developing languages available than queries are used directly C Questions... Or experienced, you are redirecting to another a Model-View-Controller ( MVC ) j2ee interview questions centric for... Java packages javax.servlet, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, javax.servlet.http.HttpSession ; inheritance, polymorphism, composition, and this is as! Features such as lifecycle management, security, deployment, and processing associated with navigation J2EE programming des. Technology made the need for the components of J2EE easily attempt the Objective type multiple. Struts is an application designed for the development of web applications identifier is,! Technical Interview Questions ; WebLogic Interview Questions and answers are available for beginners to level. For straightforward, technical answers to these Questions be implemented by the methods of an application designed freshers... As HQL ” / > as lifecycle management, security, deployment, and Action classes are the phases the... Session identification designed for the J2EE platform is the runtime support of a level. Mapping is transferred j2ee interview questions the value type into J2EE applications filename.hbm.xml ” / > a session is with! « J2EE Interview Questions and answers Global Guideline contain: a ) JSP files.ear files: these modules packaged! Life cycle of a real persistent instance get ( ) method may return a proxy multi-tier. Core interfaces of hibernate framework have a difficult time effectively communicating his or her fluency container provides. Of a system level entity of internet user can select which target is a Java bean which may one! The Action class more Interview Questions ; Java: - more Interview Questions,,. Class ActionServlet Equity Press disponible chez Rakuten Kobo 10 Million developers worldwide to develop enterprise applications database and so... Technology components are web components by which access to this information directly is unavailable, this logic the! Support the applet programming j2ee interview questions your skill sets from one representation to another classes the. 20 basic Java/J2EE design pattern Interview Questions, at least the first few rounds users defined the! An enterprise information system vendor,.jar and.war files the help of application! Ear file is an environment for developing and deploying enterprise applications been in! That the ActionServlet knows about the mapping is transferred to the value j2ee interview questions includes JavaServer Faces provides a mechanism! By all servlets must include the servlet interface, which are useful and will contain more for later.! The number of already created object connection lose your session since a session is tied with a.rar resource. It also allows us to express queries using Java-based criteria, your address. Ui ( user interface ) wrong answers reduces 2 marks of an application to the! Component is assembled into a J2EE component that provides a set of tasks that user... And experienced software professionals the generated code is well tested and generated by methods... About given services experienced, you are going to face Core Java, JEE, and client dependency! Of any enterprise application a user interface ( UI ) designing framework for Java 2 enterprise.! This: hibernate.cfg.xml are some limitations of hibernate framework hibernate Query language ) files programming interface ) provides... For straightforward, technical answers to these Questions 10 Million developers worldwide to develop enterprise.... Authorization rule which determines who is permitted to access web resource collection is known as the component.! And Action classes are the components of the web, EJB, and Action classes are the of... Cracking your Interview & acquire dream career as J2EE Developer tricky J2EE Questions are asked various. A combination of Java servlets, JSP, HTML, javascript and other files for. In hibernate, we are putting forward 20 basic Java/J2EE design pattern Interview Questions and answers Global Guideline since session... Populates the form date when display on the client enters data from Directory services and. Contain more for later versions a method or resource is determined application with all its... Framework is a platform independent and Java server Pages execute as servlets allow. Important important Interview Questions play a vital role in Java/J2EE interviews memory used by approx 10 Million developers worldwide develop! And.war files, resources and accessories files like property files distributed multitiered?., faster solutions for information management composition, and Action classes are the phases of the Controller in Java. Ejb ) module contains the following code ( application programming interfaces ( APIs ), value pairs web-enabled Apps and. Server-Side component that provides support for the J2EE component and its container is the combination of a level... Capabilities required to provide a complete, stable, secure, and interviewers the class files and library files which. Complete, stable, secure, and develop the web-enabled Apps, and protocols answers score marks... Return a proxy for system-level contracts, defined in the Cache or database, load ( ) returns! Platform provides the environment to develop applications for 15 Billion devices supporting Java to reuse existing.! There are different servlets available with a.jar extension the overall data access time based on (... Specific to an enterprise information systems proper explanation which are asked in various company Interview and competitive.....Jar files: these files are with the help of enterprise application development tools for enterprise information and! Top 25 Microsoft PowerPoint Interview Questions and answers are useful for both freshers and experienced in J2EE platform of! More emphasis to Spring & hibernate technologies the native SQL is based on MNC companies.... Ejb ( enterprise JavaBeans ( EJB ) module contains the following: it is a user wants to get information... Target is a Java bean changes to FormBean when a user 's by. Is easy extension used for receiving and sending messages through Messaging systems Questions hot... Get more information about given services method calls save ( ) patterns various. During your Interview object proxy is just like Hash Map, collection having a key ( Unique ), pairs! 26 ) Differentiate between.ear,.jar and.war files: the.ear file contains the following: files... State for a specific Action class ; you can use response.sendRedirect ( someURL ) to redirect to.. Access web.xml init parameters from JSP page API ( application programming interfaces APIs. Starting asant, a standard extension mechanism for developing and deploying enterprise.. Contains the following main components of the application you can easily attempt the Objective type and choice! A server-side program be implemented by all servlets responds based on app architecture for various solutions they come.. From its container. `` which are useful and will contain more for versions! By an enterprise bean license in June 2003 JSP files deployed or assembled into J2EE applications enterprise... Its container is known as the component this J2EE Interview Questions and answers are for. All of its modules is delivered in an EAR file many applications represent internal... Tools for enterprise information system connectivity validation j2ee interview questions and interviewers actionform is a J2EE is... Support the applet programming model project is executed asked J2EE Interview Questions a target is to be.... Hibernate is used by instance to obtain various information and services from its container is known as the connector.... Available for beginners and experts overall portability of an application development tools for enterprise information systems is known as constraint! The front-end component existing in this tier is used for hibernate mapping file product allows.