error in jsp page

[Chris Davies]

hi

i'm trying to call the following into a jsp page

 <td><%= list myClass = new list();
                        out.print(myClass.Uselist()); %> 

but i'm getting the error

 Basis+/basisv91/java2/java/jakarta-tomcat-4.0.4/work/Standalone/localhost/Webtop2/WEB-INF/jsp/ws/recruit/lhead/newrecruit2/edit$jsp.java:1108:
 ')' expected. out.print( list myClass = new list(); ^ 1 error  

class initialised at the top of the page

 <jsp:useBean id="listvalue"
              scope="session"
              class="examples.list.list">
</jsp:useBean> 

any ideas ?

cheers

chris
[ August 10, 2004: Message edited by: Bear Bibeault ]

[Kalai Selvan]

Hi,
Inside the expression tag (i.e. <%=%gt) you can have only expressions and not an ordinary statments like obj initialization, i/o etc. And also expression tag does not require semicolon at the end of expression. For normal statments use scriptlets (i.e <% %>).

Kalai Selvan T.

[Chris Davies]

thanks

i changed it to scriptlets using the following

  <% list myClass = new list()
                        out.print(myClass.Uselist()) %>

but get the following error

 Generated servlet error:
 /Basis+/basisv91/java2/java/jakarta-tomcat-4.0.4/work/Standalone/localhost/Webtop2/WEB-INF/jsp/ws/recruit/lhead/newrecruit2/edit$jsp.java:1108:
 ';' expected. list myClass = new list() ^ 1 error  
 

cheers

chris
[ August 10, 2004: Message edited by: Bear Bibeault ]

[Bear Bibeault]

edit$jsp.java:1108: ';' expected. list myClass = new list()

How much clearer could it be? Like any other Java statement, this one needs to be terminated with a semi-colon.

Btw, even in a JSP it's a great idea to follow normal Java naming conventions; including starting all class names with capital letters. So, I'd recommend List over list.

[Chris Davies]

yes i thought that but when i put the semi colons in after both statements i get the following error

org.apache.jasper.JasperException: Unable to compile class for JSP An error occurred between lines: 270 and 271 in the jsp file:
/WEB-INF/jsp/ws/recruit/lhead/newrecruit2/edit.jsp Generated servlet error:
/Basis+/basisv91/java2/java/jakarta-tomcat-4.0.4/work/Standalone/localhost/Webtop2/WEB-INF/jsp/ws/recruit/lhead/newrecruit2/edit$jsp.java:1108:
Class org.apache.jsp.list not found. list myClass = new list(); ^ An error occurred between lines: 270 and 271 in the jsp file:
/WEB-INF/jsp/ws/recruit/lhead/newrecruit2/edit.jsp Generated servlet error: 
/Basis+/basisv91/java2/java/jakarta-tomcat-4.0.4/work/Standalone/localhost/Webtop2/WEB-INF/jsp/ws/recruit/lhead/newrecruit2/edit$jsp.java:1108:
 Class org.apache.jsp.list not found.
 list myClass = new list(); ^ 2 errors   

though i cant see why as i have the compiled file within the web-inf/classes directory.

[ August 10, 2004: Message edited by: Bear Bibeault ]
[ August 10, 2004: Message edited by: Bear Bibeault ]

[Bear Bibeault]

Well, taking the semi-colon away just causes the compiler to fail before it can detect that the 'list' class does not exist.

Case counts. It should be WEB-INF not web-inf. And, as I said before, List rather than list (though the latter doesn't cause an error -- it's just good practice and helps make your code more readable).

Also please be sure NOT to enter your error messages as one long line. You can see you that screws up the page formatting making your topic even harder to read.

[Bear Bibeault]

And... what package should the 'list' class come from. org.apache.jsp? Are you importing your package in the JSP page?

[Chris Davies]

And... what package should the 'list' class come from. org.apache.jsp? Are you importing your package in the JSP page?

I'm using the following import statement in my file

<%@ page import="examples.list.*" %>

and the file is located in WEB-INF/classes/examples/list/ but still it cant find it and is giving me the error (i've chanegd its name to Listdrop)

Class org.apache.jsp.Listdrop not found. Listdrop myClass = new Listdrop(); ^ An error occurred between lines


??

[JulianInactive KennedyInactive]

Chris,

The name of your list object is called listvalue (conventionally listValue) in your <jsp:useBean>. As I said in another post you don't need to (and shouldn't) use both import and useBean - see what problems it causes!

As Bear says, get used to using conventions for Java code. They're used in almost any book or web tutorial you'll find and are available on Sun's website. You may also benefit from just refreshing you memory from your JSP book/tutorial by checking out the examples.

Jules