What is Web application in J2EE?

A J2EE Web application may include Web components, static files (such as HTML pages, image files and so on), helper java classes, JavaBeans, or other components defined by the J2EE Specification. All these files are packaged in a Web application archive (WAR).

What are the four components of J2EE application?

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

What is the use of servlets?

A servlet is a Java programming language class that is used to extend the capabilities of servers that host applications accessed by means of a request-response programming model. Although servlets can respond to any type of request, they are commonly used to extend the applications hosted by web servers.

How can I create a web application?

Here we go, the 8 steps for creating a web application.

1. Define the problem you are solving.
2. Plan the workflow of your web application.
3. Wireframe/prototype your web application.
4. Receive Validation.
5. Choose your firepower.
6. Build your web application.
7. Test your web application.
8. Host and deploy your web application.

What are the components of J2EE application programming model for web-based applications?

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 components of J2EE application programming model for web-based applications three tier applications and web-based applets?

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.