Permissions & a Java prob

edM · 11-04-2003, 03:35 PM

hi there,

what permissions do i have to change in order for me to acess\r\w to the floppy drive and cdrom as normal user?

lrwxrwxrwx 1 root root 8 Nov 3 18:41 /dev/cdrom -> /dev/hdc
brw-rw---- 1 root floppy 2, 0 May 14 1996 /dev/fd0

..and if i wanted to be able to mount cds/floppys as a normal user?

---------------

ok other problem, im using the Java SDK which was automatically set up with 9.1, when i go to run a program i get this exception:

ed@sub5:~$ java /home/ed/java/test1
Exception in thread "main" java.lang.NoClassDefFoundError: /home/ed/java/test1

it complies ok but it just doesnt run! i havnt changed any configs, its the way slack has it setup.

thanks for your help,
Ed.

xexix · 11-04-2003, 07:27 PM

prob 1)
add 'user' to the 4th column in /etc/fstab. This will allow any user to mount a floppy and will setup the proper perms.

prob 2) i don't know what test1 source contains. but it probably does not contain the basics for a java file. your class name must be the same as the file name! ex:

file foo.java:

Code:

public class foo {
        public static void main(String[] args) {
                System.out.println("foo");
        }
}

compile it with "javac foo.java" then run it with "java foo".

edM · 11-05-2003, 02:38 PM

test1 was just a simple prog with 1 output string , it compiled.

could it be that the class path is not correct?

xexix · 11-05-2003, 03:07 PM

you either have to run in the same directory or setup:
export CLASS_PATH=/home/ed/java

or place "export CLASS_PATH=~/java" in ~/.profile.

edM · 11-05-2003, 03:49 PM

alright thanks ill give it a go.