I think I almost have it understanding inner, nested, top-level,
public etc classes and the equivalent enums.
What I don't understand is the restriction on no static variables in
inner nested non-static instance classes. Why?

I've been using Borland Java for a year or so. One thing I notice is that althought there are profiling tools
there are no optimization settings for the compiler. Whereas I'm used to having C/C++ compilers that hve
multiple options for optimizating for time or for memory etc. ...

I've done this before but can't remember how. I have a string which
contains values like
"hello\013Goodbye\a"
The application is putting them into a string but escaping them, so

I've a problem that I cannot solve and maybe you can help me.
Supposed to have the following package into a jar:
MyJar.jar
./main

I have a swing application with several JButtons.
Can I use enum to determine which JButton was clicked
based on the String JButton label? I am using ".equals" now.

If I have a String such as
réservé
I would like to convert to simply "reserve"
Is there a library to do the above?

Why the following codes is "especially slow" and "unformally slow"?
regards:
The following codes is "especially slow" and "unformally slow".
Following is part codes of the "socket stream",

Im writing an installer for a complex windows application. When the
installer starts up, I want to check to see if the current user logged
onto windows has Administration rights. I know I can retrieve the user
name using the property "user.name" in Java (I'm using Eclipse 3.0). I

I have a Java application which processes messages and places data
extracted from those messages into a database.  Someone suggested that
if application was made into a service then the message processing
would be truely automatic.

Is anyone aware of a Collections Object that implements both the Set and Map
Interfaces concurrently? Is it possible to even create one?
Thanks, Ike

Newbie one: I have a Hello.class in my local directory which prints "Hello"
and a World.class in ./org/test which prints "World". The World class is in
a package (org.test) which the Hello class imports and calls to. It works
fine.

I have here a file , i think a library to be used by a java demo program of
a supplier providing serial interface api that will run on Linux. e.g.
libeftapi.so.1.1.3 . Where shall I place this on Linux system??? what
subdirectory? Or shall i place it in my JDK1.4\lib director(ies)? ...

In an unsigned applet, let us say my web page lives in:
mindprod.com/projects
let us say my jar lives in
mindprod.com/applets

I'm trying to find an elegant and short(ish) method to find the image width
& height of a JPEG data stream without having to read any image pixel data.
I  am not interested in porting any JPEG/JFIF file parsing code from C or
Pascal or Delphi.. ;-)

I desperately need some help on this. I have an application that runs
on Tomcat. All this while i had windows xp service pack 1, but now i
have upgraded to windows xp service pack 2. Since then Tomcat gives an
error trying to connect to Sql server using JDBC connection.