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Different JSP tags

Different JSP Tags

There are following basic JSP elements which can be used with the JSP pages.

  1. Scriptlet Element.

  2. Expression Element.

  3. Declaration Element.


The Scriptlet Element

Syntax :-<% Java Code %>

The simplest type of JSP element is the Scriptlet element. A
Scriptlet element is simply a section of Java code encapsulated within the
opening and closing JSP tags. The Scriplet is only applicable to the page in which it is declared and not in the other sub pages. The best part of the JSP is the power of directly using the Java Code with the HTML tags.

Example:- <% if(cond)%> is the sample code for the Scriplet.

Expression Element

Syntax: <%= code %>

The expression tag is used to print the output in the HTML format in the JSP page. In the last section we have just seen that it is used to output the String object on JSP page.

Declaration Element Syntax

Syntax: <%! code %>

The next type of Scripting element is the Declaration element.
The purpose of a Declaration element is to initialize variables and methods and
make them available to other Declarations, Scriptlets, and Expressions.


Syntax: <%-- comment --%> <!-- comment -->

There are two different types of comments in JSP. The difference
between the types of comments is that <%-- --%> comment is not viewable at the client side but the other one is viewable by selecting the view page source option.


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