Can javac and java point to source files on other drives?

[Tyster]

Hi there folks,

Very new to java and I have what I hope will be a simple question...

I have JDK 1.5 installed on my C: drive and my source on my E: drive (flash drive). I'm trying to run the source and I always get NoClassDefFound errors when I try to run the program. Compile seems to work (no errors). Here is what I have tried...

C:\Sun\SDK\jdk\bin\java E:\Chap1\source.java

C:\Sun\SDK\jdk\bin\java "E:\Chap1\source.java"

I've fooled around with this quite a bit but no joy. I checked out the parameter options for java and javac but didn't see anything that would clearly address this. I want to compile such that the class file is created in the same directory as the source file.

Its worth noting that when I copy the source file to the directory where the compiler and java are located (C:\Sun\SDK\jdk\bin\) and try it there everything works fine.

Anyone have any suggestions?

Many Thanks!

Tyster

[darkagn]

That error normally occurs when you try to run the java class file without having first compiled it. The correct (two) commands are:

javac E:\Chap1\source.java
java E:\Chap1\source

As far as I know it shouldn't matter where your files are located if you provide the full path.

[Tyster]

Oddly, if I run...

C:\Sun\SDK\jdk\bin\javac E:\Chap1\source.java

It works. I get 'source.class' in E:\Chap1. But when I try to tun the program with...

C:\Sun\SDK\jdk\bin\java E:\Chap1\source

I get this error...

Exception in thread "main" java.lang.NoClassDefFoundError: E:\Chap1
\source

I tried fooling with the -d parameter but no luck.

Anyone have any ideas?

Many Thanks!

...Tyster

[Ezzaral]

Use the -cp parameter to put that directory in your classpath C:\Sun\SDK\jdk\bin\java -cp E:\Chap1 source

[jwenting]

and remember to supply the output directory for the compiler as well if you don't want to compile to the directory from where you're executing the compile action.

[Tyster]

Thanks! I'll give that a try!

...Tyster