CLASSPATH in WindowsXP

ok..im not a fool.. ive been programming in java for a while and I know the basics of setting up a classpath .. that being said.. My current class path under windows XP does not work. I can type SET CLASSPATH and have it display.. so i know its there.. but it does not work. Anyone ever see this?
the goal im trying to achieve is that ive downloaded the javamail api and now i want to use it. So i have created the classpath to refrence the location of the jar files. If there is another way to accomplish this same thing.. that too would work for me.
Thanks,
J.

Well I am having the same strange problem,
and I found weird how Windows XP deals with CLASSPATH.
The problem is that despite I had declared (CLASSPATH, PATH, JAVA_HOME) in my "Enviroment variables" (look below) when I run the command prompt (cmd.exe) it does not run the classes straight, it says:
"Exception in thread "main" java.lang.NoClassDefFoundError:"
Then I need to run with: java -cp %CLASSPATH% ....
and it runs. Shouldn't the system recover the CLASSPATH automatically?
Strange when I go into command prompt and press "set"
it reports the PATH, CLASSPATH just as declared...
Do you think my enviroment variables are too large for the memory?
Another weird thing is that, in my opinion, should be enough to declare
in the classpath only the folders where the .jar libraries were
and not declaring each .jar file...
the JVM should scan them for the libraries automatically, but it does not happens!!
Look how I have to set my PATH and CLASSPATH for it to find them as example:
CLASSPATH=.;C:\j2sdk140\lib\;C:\j2sdk140\lib\tools.jar;C:\j2sdk140\lib\servlet.jar;C:\j2sdk140\lib\jspengine.jar;C:\Program Files\JavaSoft\JRE\1.3.1\lib\ext\QTJava.zip;C:\j2sdk140\lib\xt.jar;C:\j2sdk140\lib\sax.jar;C:\j2sdk140\lib\dom4j.jar;C:\j2sdk140\lib\xt.jar;C:\j2sdk140\lib\xp.jar;C:\j2sdk140\lib\saxon.jar;
PATH=%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;c:\j2sdk140\bin;c:\j2sdk140\lib;c:\jswdk101;c:\jswdk101\lib;C:\PROGRA~1\COMMON~1\AUTODE~1;D:\PROGRA~2\BC5\BIN;
Don't you find it strange? Is it my mistake?
What can I do to avoid to type -cp %CLASSPATH% everytime
when running apps from XP command prompt (cmd.exe)??
Many Thanks
Al.

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I'm confused about classpath

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The keyword to google for is Extension Mechanism:
http://java.sun.com/j2se/1.4.2/docs/guide/extensions/spec.html

Problem in installing j2sdk on cygwin-a-top-windowsXP

Sir/madam,
I have cygwin installed on windowsXP. I am new to java. I needed j2sdk for a program and I downloaded the Linux .bin file "j2sdk-1_4_2_07-linux-i586-rpm.bin". I tried to use "./ " installation method as suggested on the site, but got the following messeges after agrreeing to licence terms:
trap: bad signal HUP
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But nothing was installed in the folder where I ran this command. Please tell me the solution at the earliest. Whether I downloaded the wrong file for Cygwin-win installation or something else is there. I have even tried the simple bin file but same problem exists.
Thanking in advance.
Rohit Thakkar

Perhaps when flaming about what cygwin is or is not one should consider how it is used. Some folks take their unixy source and compile it, linking with the cygwin dll. But others of us live in a bash or ksh shell in an xterm, all UNDER CYGWIN ON WINDOWS. The problems folks have is that so many proprietary...uh...things, like Javac/java have hard coded methodologies, such as depending on a %PATH% vs. $PATH...Slash vs. backslash. Here's what is probably what should be known by you superdeduper portablility language lovers:
java -classpath `cygpath -wp $CLASSPATH` [arguments]
or
java -classpath $(cygwath -wp $CLASSPATH) GoodByeCruelWorld.class
Man page for cygpath...
CYGPATH(1) CYGWIN CYGPATH(1)
NAME
cygpath - Convert Unix and Windows format paths, or output system path
information
SYNOPSIS
cygpath (-d|-m|-u|-w|-t TYPE) [-f FILE] [OPTION]... NAME...
cygpath [-c HANDLE]
cygpath [-ADHPSW]
OPTIONS
Output type options:
-d, --dos
print DOS (short) form of NAMEs (C:\PROGRA~1\)
-m, --mixed
like --windows, but with regular slashes (C:/WINNT)
-M, --mode report on mode of file (currently binmode or
textmode)
-u, --unix
(default) print Unix form of NAMEs (/cygdrive/c/winnt)
-w, --windows
print Windows form of NAMEs (C:\WINNT)
-t, --type TYPE
print TYPE form: 'dos', 'mixed', 'unix', or 'windows'
Path conversion options:
-a, --absolute
output absolute path
-l, --long-name
print Windows long form of NAMEs (with -w, -m only)
-p, --path
NAME is a PATH list (i.e., '/bin:/usr/bin')
-s, --short-name
print DOS (short) form of NAMEs (with -w, -m only)
System information:
-A, --allusers
use `All Users' instead of current user for -D, -P
-D, --desktop
output `Desktop' directory and exit
-H, --homeroot
output `Profiles' directory (home root) and exit
-P, --smprograms
output Start Menu `Programs' directory and exit
-S, --sysdir
output system directory and exit
-W, --windir
output `Windows' directory and exit
Other options:
-f, --file FILE
read FILE for input; use - to read from STDIN
-o, --option
read options from FILE as well (for use with --file)
-c, --close HANDLE
close HANDLE (for use in captured process)
-i, --ignore
ignore missing argument
-h, --help
output usage information and exit
-v, --version
output version information and exit
DESCRIPTION
The cygpath program is a utility that converts Windows native file-
names to Cygwin POSIX-style pathnames and vice versa. It can be used
when a Cygwin program needs to pass a file name to a native Windows
program, or expects to get a file name from a native Windows program.
Alternatively, cygpath can output information about the location of
important system directories in either format.
The -u and -w options indicate whether you want a conversion to UNIX
(POSIX) format ( -u) or to Windows format ( -w). Use the -d to get
DOS-style (8.3) file and path names. The -m option will output Win-
dows-style format but with forward slashes instead of backslashes.
This option is especially useful in shell scripts, which use back-
slashes as an escape character.
In combination with the -w option, you can use the -l and -s
options to use normal (long) or DOS-style (short) form. The -d option
is identical to -w and -s together.
Caveat: The -l option does not work if the check_case parameter of
CYGWIN is set to strict, since Cygwin is not able to match any Win-
dows short path in this mode.
The -p option means that you want to convert a path-style string
rather than a single filename. For example, the PATH environment vari-
able is semicolon-delimited in Windows, but colon-delimited in UNIX.
By giving -p you are instructing cygpath to convert between these
formats.
The -i option supresses the print out of the usage message if no file-
name argument was given. It can be used in make file rules converting
variables that may be omitted to a proper format. Note that cygpath
output may contain spaces (C:\Program Files) so should be enclosed in
quotes.
cygpath usage
#!/bin/sh
if [ "${1}" = "" ];
then
XPATH=".";
else
XPATH="$(cygpath -w "${1}")";
fi
explorer $XPATH &
The capital options -D, -H, -P, -S, and -W output directories used
by Windows that are not the same on all systems, for example -S might
output C:\WINNT\SYSTEM32 or C:\WINDOWS\SYSTEM. The -H shows the Win-
dows profiles directory that can be used as root of home. The -A
option forces use of the "All Users" directories instead of the cur-
rent user for the -D and -P options. On Win9x systems with only a
single user, -A has no effect; -D and -AD would have the same out-
put. By default the output is in UNIX (POSIX) format; use the -w or
-d options to get other formats.
COPYRIGHT
Cygwin is Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
Red Hat, Inc.
Cygwin is Free software; for complete licensing information, refer to:
http://cygwin.com/licensing.html
MAINTAINER
This man page was written and is maintained by Joshua Daniel Franklin,
[email protected]
SEE ALSO
The full documentation to the Cygwin Utilities is maintained on the web
at:
http://cygwin.com/cygwin-ug-net/using-utils.html
The website is updated more frequently than the man pages and should be
considered the authoritative source of information.
2006 Aug 09 CYGPATH(1)

Problem in putting the classpath

HI!
I have a serious problem!
I'm trying to create a connection using the antinav jdbc driver type 3 for WindowsXP and Access 2000.
I also have installed JDK1.4.2 version and I use JCreatorLE environment.
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Press any key to continue...
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Thank you!

Looks like your JCreator CLASSPATH is okay. If it wasn't, you would have gotten a ClassNotFoundException for the JDBC driver. Looks like you got past that.
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I'm unfamilar with this Antinav type III driver you're using. Why isn't the JDBC-ODBC bridge driver sufficient? Did you have to pay for this? What made you think it was necessary?
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