02-02-2008, 07:58 PM

Hello.

I am currently reading sams teach yourself java 2 in 24 hours and I got an error when trying to run a compiled script using the terminal.

Emac:~ admin$ javac /J24Work/BigDept.java
Emac:~ admin$ java /J24Work/BigDept
Exception in thread "main" java.lang.NoClassDefFoundError: /J24Work/BigDept
Emac:~ admin$

Anyway. I tried what it said to do on this page:
http://www.ics.uci.edu/~thornton/ics...ingUpJava.html

Which didnt seem to work, and now, every time i open a new terminal window, I get

Last login: Sun Feb 3 13:38:38 on ttyp1
Welcome to Darwin!

Without the prompt, and none of the commands work.

If I close the window, i get a message saying:

Closing this window will terminate the following processes inside it: login, bash, cat

So I hit terminate.

Terminate doesnt seem to work however, as it still does the same thing whenever I open a new terminal window.

Any ideas why, and how to fix it?
Also if you could tell me why I got that error when interpreting the compiled script then that would be great aswell.

Thanks.

02-04-2008, 01:39 PM

If you are comfortable working in the shell environment. Then try booting into single user mode. Once in single user mode, move to you user accounts home folder/directory. Take a look at your dot files (.profile, .cshrc, .login, etc) to be sure they are not corrupted.

02-04-2008, 01:41 PM

You may want also look at system preferences -> accounts ->login items tab. For your account and more sure there is nothing that has been added.

02-04-2008, 01:55 PM

Does "Emac:~ admin$ javac /J24Work/BigDept.java" complete correctly?

Meaning, do you see a "BigDept.class" file in that directory?

Is the .java file really located at the top of your harddrive in the "J24Work" directory? Or is in in your user's folder?

The error basically means java can't find something that it needs to run the app.

Which version of OS X are you running?
Normally OS X comes with everything you need to run apps the way you did from the command line...

02-04-2008, 10:54 PM

Originally Posted by Aptmunich

Does "Emac:~ admin$ javac /J24Work/BigDept.java" complete correctly?

Meaning, do you see a "BigDept.class" file in that directory?

Is the .java file really located at the top of your harddrive in the "J24Work" directory? Or is in in your user's folder?

The error basically means java can't find something that it needs to run the app.

Which version of OS X are you running?
Normally OS X comes with everything you need to run apps the way you did from the command line...

Yes the BigDept.class file is been created in that directory.

I am currently running os x 10.3.9.

Upgrading to tiger soon.

Thanks

02-05-2008, 02:12 PM

Have you tried installing this?
http://www.apple.com/support/downloa...acosx1039.html

02-11-2008, 02:55 AM

Thanks but im not that fussed about it anymore since i found the SDK Eclipse which seems to be pretty good for developing java applications/applets.

I figure that once I get tiger this problem with the terminal will fix itself. But ill keep your link bookmarked.

Cheers.

02-11-2008, 02:57 PM

Yeah, I use eclipse almost exclusively now as well...
It's a bit much for starting out, but if you're serious about getting into Java that's what the pros use

02-11-2008, 08:19 PM

I am also having trouble with terminal. The problems aren't the same but they are confusing. I type this in terminal : bzfs.txt I have this file on my mac but after it says :-bash: bzfs.txt: command not found What does "command not found" mean? Please help

02-11-2008, 09:10 PM

higher43 it appears that your issue is different than Elan's . It appears that you are trying to execute (run) a text file (bzfs.txt). That is why you received a command not found. bzfs.txt is not a command or it does not have excute permissions.

Also higher43 it would be better to start your on thread, than to hijack someone else, when your problem is not the same.

02-13-2008, 01:31 AM

Higher43:

I believe you need to use an editing program to open the file. Some examples are emacs, which the OP is using. I personally use VI though the learning curve on it is much steeper. Emacs is pretty much like most text editors, you just open type and that's what you get. Others use "pico" which is pretty easy too. However, as with most programs with steep learning curves, once you fight through it you feel very comfortable and feel unproductive using anything else. So choose wisely.

Google

Emacs
VIM
Pico

See which one you like best. Hope that helps.

02-28-2008, 09:29 PM

Originally Posted by rman

If you are comfortable working in the shell environment. Then try booting into single user mode. Once in single user mode, move to you user accounts home folder/directory. Take a look at your dot files (.profile, .cshrc, .login, etc) to be sure they are not corrupted.

Hmm I tried reinstalling my software and it didnt seem to fix the problem.

Actually I do not know that much about the shell enviroment.

After booting into single user mode, what commands should I do to check if thoughs files are not courrupt?

Thanks.

03-12-2008, 08:42 PM

The terminal seems to be working fine when i use it from another account, does that help?

Also if I hit control D multiple times, I seem to be getting results from commands I have executed in the past.

Last login: Thu Mar 13 13:35:17 on ttyp1
Welcome to Darwin!
Exception in thread "main" java.lang.NoClassDefFoundError: /J24Work/BigDept
java version "1.4.2_16"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_16-b05-303)
Java HotSpot(TM) Client VM (build 1.4.2-86, mixed mode)
-bash: emac:: command not found
-bash: djava: command not found
java version "1.4.2_16"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_16-b05-303)
Java HotSpot(TM) Client VM (build 1.4.2-86, mixed mode)
[Process completed]

Yeah I need to fix this problem since installing tiger didnt do it.

Any help appreciated.

Thanks.

03-12-2008, 08:43 PM

The terminal functions fine if I hit control C when I open it, but it would be nice to not have to hit control C every time I want to use it.

03-12-2008, 09:51 PM

Originally Posted by Elan

The terminal seems to be working fine when i use it from another account, does that help?

Also if I hit control D multiple times, I seem to be getting results from commands I have executed in the past.

Last login: Thu Mar 13 13:35:17 on ttyp1
Welcome to Darwin!
Exception in thread "main" java.lang.NoClassDefFoundError: /J24Work/BigDept
java version "1.4.2_16"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_16-b05-303)
Java HotSpot(TM) Client VM (build 1.4.2-86, mixed mode)
-bash: emac:: command not found
-bash: djava: command not found
java version "1.4.2_16"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_16-b05-303)
Java HotSpot(TM) Client VM (build 1.4.2-86, mixed mode)
[Process completed]

Yeah I need to fix this problem since installing tiger didnt do it.

Any help appreciated.

Thanks.

Am I understanding you correctly. If you use another account you don't have a problem with the terminal application?

looking at the above. It appears that on start of the terminal application you are trying to execute emacs and djava.

Check and see if you have one of the following:

.profile
.bash_profile
.bash_login

In one of these files you may have something that maybe causing your problem.