Jsp is used mainly for presentation logic. In the jsp we can declare methods just like as we declare methods in java classes. Methods can be
declared in either declaration directive
or we can declare it in scriptlet.
Which is the correct way to write JSP scriptlet?
A scriptlet tag is used to execute java source code in JSP. Syntax is as follows:
<% java source code %>
Can we write a method inside scriptlet in JSP?
Jsp is used mainly for presentation logic. In the jsp we can declare methods just like as we declare methods in java classes. Methods can be declared in either declaration directive or
we can declare it in scriptlet
. If we declare method inside declaration directive, then the method is applicable in the whole page.
What is a scriptlet in JSP and write its syntax?
Scriptlet tag
allows to write Java code into JSP file
. JSP container moves statements in _jspservice() method while generating servlet from jsp. For each request of the client, service method of the JSP gets invoked hence the code inside the Scriptlet executes for every request.
In which element can method be declared in a JSP page?
Declaration tag
is one of the scripting elements in JSP. This Tag is used for declare the variables. Along with this, Declaration Tag can also declare method and classes.
Is a JSP scriptlet?
In JavaServer Pages (JSP) technology, a scriptlet is
a piece of Java-code embedded in the HTML-like JSP code
. The scriptlet is everything inside the <% %> tags. … In Windows, a scriptlet is COM component including a HTML code and a script which may be written in a variety of scripting languages.
What is JSP scriptlet?
A JSP scriptlet is
used to contain any code fragment that is valid for the scripting language used in a
page.
What is JSP declaration?
A JSP declaration is
used to declare variables and methods in a page’s scripting language
. The syntax for a declaration is as follows: <%!
What is the difference between JSP and servlets?
Servlets are faster as compared to JSP, as they have a short response time.
JSP is slower than Servlets
, as the first step in the JSP lifecycle is the conversion of JSP to Java code and then the compilation of the code. … JSP are HTML-based codes. Servlets are harder to code, as here, the HTML codes are written in Java.
Which tag is used in JSP declaration?
The
jsp scriptlet tag
can only declare variables not methods. The jsp declaration tag can declare variables as well as methods. The declaration of scriptlet tag is placed inside the _jspService() method. The declaration of jsp declaration tag is placed outside the _jspService() method.
What are the elements of JSP?
There are three types of JSP elements you can use:
directive, action, and scripting
.
What are the components of JSP?
There are four key components to JSPs—
directives, actions, scriptlets and tag libraries
. Directives specify global information that is not associated with a particular JSP request. Actions encapsulate functionality in predefined tags that programmers can embed in a JSP.
What are the literals used in JSP?
- 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 JSP means?
JavaServer Pages
(JSP) is a technology for developing Webpages that supports dynamic content. … A JavaServer Pages component is a type of Java servlet that is designed to fulfill the role of a user interface for a Java web application.
What are the directives in JSP?
JSP directives are the
elements of a JSP source code that guide the web container on how to translate the JSP page into it’s respective servlet
. Directives can have a number of attributes which you can list down as key-value pairs and separated by commas.
