What are the components of J2EE architecture?

What are the components of J2EE architecture?

The J2EE application components are as follows:

  • Applet. These are client-side GUI components that run inside a browser and are hosted by an applet container.
  • Application client.
  • Web component.
  • Servlets.
  • JavaServer Pages.
  • Filters.
  • Web event listeners.
  • Enterprise JavaBeans.

What are the four parts of J2EE?

The four J2EE application components are: Client tier, Web tier, business tier and enterprise information system (EIS) tier.

What are J2EE tiers?

J2EE middleware defines a set of four independent tiers, over which applications can be built:

  • Client tier.
  • Presentation logic tier.
  • Business logic tier.
  • Enterprise information systems tier.

What is J2EE architecture?

J2EE Architecture is made up of three tier, such as the client tier that is used as an interactive medium for the end user or the client & consists of web clients and application clients, the middle tier that is used for defining logical functioning units & consist of web components and EJB components, and the …

What are the J2EE components Mcq?

The J2EE specification defines the following J2EE components: Application clients and applets are client components. Java Servlet and JavaServer PagesTM (JSPTM) technology components are web components. Enterprise JavaBeansTM (EJBTM) components (enterprise beans) are business components.

What is meant by J2EE?

Example: “J2EE stands for Java 2 Platform Enterprise Edition. The purpose of the J2EE platform is to develop multi-tier, web-based applications using a series of protocols and application programming interfaces (APIs).

What is J2EE stand for?

Java 2 Platform, Enterprise Edition
Java 2 Platform, Enterprise Edition (J2EE) Overview.

What are primary technologies used in J2EE?

For completeness, however, the full list of technologies that make up J2EE is as follows:

  • Java Servlets.
  • JavaServer Pages (JSP)
  • Enterprise JavaBeans (EJB)
  • Java Message Service (JMS)
  • Java Naming and Directory Interface (JNDI)
  • Java Database Connectivity (JDBC)
  • JavaMail.
  • Java Transaction Service (JTS)

What is J2EE?

Java 2 Platform, Enterprise Edition (J2EE) is the former name for Java EE, Java’s platform for servers. While the Java EE nomenclature, introduced in 2006, simply means Java Platform Enterprise Edition. The enterprise edition of Java is used for creating Web and enterprise applications.

What are the layers in J2EE?

The multi-layered architecture of J2EE mainly includes the client layer (the behave layer), the presentation layer (the Web layer), the business logic layer (the application layer) and the data persistence layer (the EIS layer). Each layer has its specific function.

Explain J2EE is a container centric architecture. – A container acts as an interface between a platform-specific functionality and a component. – The component must be assembled before a web or enterprise bean or application client component execution, into a JEE application and deployed into its container.

What are the different types of containers in J2EE architecture?

Containers in J2EE Architecture. 1 1. Application Client Container. The container includes a set of classes, libraries, other files that are required to execute client programs in their 2 2. Web Container. 3 3. EJB Container. 4 4. Applet Container.

What are the different data tiers in J2EE?

Enterprise Data Tier: Enterprise data is stored in a relational database. This tier contains containers, components and services. Usually in J2EE architecture consist of four tiers Client Tier, Web Tier, Enterprise JavaBean Tier, and Enterprise Information Tier. The middle tier consists of Web Tier+EJB tier.