Is JSP technology extensible?

Is JSP technology extensible? YES. JSP technology is extensible through the development of custom actions, or tags, which are encapsulated in tag libraries.

What is the difference between ServletContext and PageContext?

ServletContext: Gives the information about the container and it represents an application. PageContext: Gives the information about the Request and it can provide all other implicit JSP objects .

What is JSP in Java in Javatpoint?

JSP technology is used to create web application just like Servlet technology. It can be thought of as an extension to Servlet because it provides more functionality than servlet such as expression language, JSTL, etc. A JSP page consists of HTML tags and JSP tags.

What are the two ways to include the result of another page in JSP?

There are two ways to include the result of another page: By include directive. By include action.

What is the life cycle phase of JSP?

Instantiation(Object of the generated Servlet is created) Initialization(jspInit() method is invoked by the container) Request processing(_jspService()is invoked by the container) JSP Cleanup (jspDestroy() method is invoked by the container)

What is implicit object in JSP?

These Objects are the Java objects that the JSP Container makes available to the developers in each page and the developer can call them directly without being explicitly declared. JSP Implicit Objects are also called pre-defined variables.

What is life cycle of JSP?

A JSP life cycle is defined as the process from its creation till the destruction. This is similar to a servlet life cycle with an additional step which is required to compile a JSP into servlet.

What are the literals used in JSP?

What are JSP literals?

  • Boolean − true and false.
  • Integer − as in Java.
  • Floating point − as in Java.
  • String − with single and double quotes; ” is escaped as \”, ‘ is escaped as \’, and \ is escaped as \\.
  • Null − null.

What are the tags in JSP?

Different types of JSP Tags are discussed below one-by-one.

  • Directive Tag: Directive tags provide general information about the JSP page to the JSP engine.
  • Declaration Tag:
  • Scriptlet Tag:
  • Expression Tag:
  • Action Tag:
  • Comment Tag:

What are JSP elements?

There are three types of JSP elements you can use: directive, action, and scripting. A new construct added in JSP 2.0 is an Expression Language (EL) expression; let’s call this a forth element type, even though it’s a bit different than the other three.