thanks for the clarification. nice java refresher.
----- Original Message -----
From: Dean H. Saxe
To: SQL
Sent: Wednesday, January 16, 2002 9:47 AM
Subject: Re: Database configuration ?
At 09:36 AM 1/16/02 -0600, you wrote:
>regarding the sentence in your post about moving data from instance
>variables to class variables to avoid redundancy, i'm not sure what
you
>mean. i did take 'java' but haven't used it much. doesn't an instance
>variable store a unique value of an object of a class while a class
>variable refers to a static value (constant) that is shared by all
>objects?
Instance variables are always associated with an instance of a class
(an
object). Class variables are shared across all instances of a single
class
(indicated by the static keyword in the variable declaration), modify
its
value in instance A and instances B-Z also reflect the change.
For instance:
public class TestClass
{
private String instanceVariable = "A variable which is unique
between
instances of this class";
private static String classVariable = "A variable shared between all
instances of this class.";
public TestClass()
{
// constructor
}
}
-dhs
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