jsp:useBean doubt..

[Narasimha Rao B.]

Hi,

What is the output of from the below JSP code?
<jsp:useBean id="name" class="java.lang.String" />
<%= name %>


I think answer will be nothing (empty string), because it is equivalent to --
String name = new String();
System.out.println(name);
name is not assigned to any string value, hence its value will be empty string...

Thanks,

[Jesus Angeles]

Yes,

if there is no String named 'name' in the context.

Otherwise, that will be the value.

As you know, useBean is popularly used after the object has been created somewhere already; like from a servlet that called the jsp.

[Jesus Angeles]

it is equivalent to --
String name = new String();

It is not equivalent.

It is more like the following pseudocode:

If name exists in the context
return that name instance
else
String name = new String();
end-if

[Jaime Yong]

The output will be ""