The only time you need to set a variable to null is when the variable itself
sticks around (e.g., a class variable, or an instance variable on some
object on a class variable). You never have to null out local variables.
This is a general Java question, not a Tomcat question. If my answer didn't
make sense, ask on news:comp.lang.java.programmer, or on a Java mailing
list.
-- Bill K.
-----Original Message-----
From: Luba Powell [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 14, 2001 12:11 PM
To: [EMAIL PROTECTED]
Subject: Re: memory allocation
Not to worry.
The only time that I know you need to set objects to null
is when you write servers and inside you (while (true)..
eternal loop.
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, June 14, 2001 1:41 PM
Subject: memory allocation
hi all , i want to ask something about jsp pages
sample jsp code =
**************************************************************
<%@ page import = "java.util.*" %>
<%@ page import = "MyBean" %>
<%@ page contentType="text/html;charset=ISO-8859-9" %>
<jsp:useBean id="my_bean" class="MyBean" scope="page"/>
<html>
<head>
<%
ArrayList al = new ArrayList();
mybean.showData(al); // we are going to fill
ArrayList
Iterator it = al.iterator();
while( it.hasNext() ) {
%>
<%=(String)it.next()%>
<%
} //while
al = null ; // should i do this ? or is it going to be
garbage collected by itself
it = null ; // shoul i do this ? or is it going to be
garbage collected by itself
%>
</head>
</html>
**************************************************************
my_bean object will be garbage collected because it' scope is page but
what about ArrayList and Iterator objects ?
thanks
Regards
Altug B. Altintas
