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Creating methods in JSP

Yogender Butola

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Posts: 12

posted 20 years ago

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Can we create methods in a JSP page? If yes then how?

Atul Prabhu

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Posts: 60

posted 20 years ago

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Hi,

Yes

<HTML>
<HEAD>
<TITLE>Creating a Method</TITLE>
</HEAD>

<BODY>
<H1>Creating a Method</H1>
<%!
int addem(int op1, int op2)
{
return op1 + op2;
}
%>

<%
out.println("2 + 2 = " + addem(2, 2));
%>
</BODY>
</HTML>

---
Atul

Vijayendra V Rao

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Posts: 195

posted 20 years ago

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Originally posted by Yogender Butola:
Can we create methods in a JSP page? If yes then how?

In a JSP, you can include normal Java code by enclosing it in the <% %> tags. For example, if you wish to have a method insode your JSP page, then you can have it the following way:

Once you have a method, you can call it from anywhere (that is, after the method implementation ofcourse) with the following syntax:

Vijayendra <br /> <br />"The harder you train in peace, the lesser you bleed in war"

Nathan Pruett

Bartender

Posts: 4121

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posted 20 years ago

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Sorry, but if you're going to declare new methods in a JSP they have to be put in declaration tags (<%! %>). Code inside declaration tags gets added to the resulting servlet at the class level, where you would want a method declaration. If you use the scriptlet tags (<% %>) the code is inserted inside the _jspService() method of the resulting servlet, which would cause an error if you tried to declare a method there.

-Nate
Write once, run anywhere, because there's nowhere to hide! - /. A.C.

Vijayendra V Rao

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Posts: 195

posted 20 years ago

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Oh! Thanks for correcting me Nathan

Vijayendra <br /> <br />"The harder you train in peace, the lesser you bleed in war"