Running a java file through the command line Vs IDE

[Ravaa Bal]

Hi all,

I'm trying to run some example code provided by jsresources, http://www.jsresources.org/examples/SynthNote.html. It states that this code needs to be run by typing in a line in the command prompt in the form of:

java SynthNote <keynumber> <velocity> <duration>
(where the last three words are parameters)

The thing is, this doesn't work for me. I get a "could not find the main class" error. For the record, I set the directory of the command prompt to the folder where the java file is located using "cd <dir/dir/etc>" before typing in the above line.

With this in mind, I attempted to run this code in the Netbeans IDE but this returns:
SynthNote: usage:
java SynthNote [<channel>] <note_number> <velocity> <duration>
Java Result: 1
BUILD SUCCESSFUL (total time: 4 seconds)

So it was successful, but not only did I not hear a note sound as I was meant to but I also wasn't given a choice to input the parameters...

Would anyone happen to know what I could be doing incorrectly here? Any insight would be great.

Thank you.

[fred rosenberger]

you don't need to be in the directory where the .java file is. You need to be in the directory where the .class file is.

[Ravaa Bal]

Aha silly me, thank you.

Is it possible to run something like this on Netbeans and be able to enter parameters when testing? As opposed to using the command line...

[Campbell Ritchie]

The IDEs all have special windows where you enter the parameters. As a beginner you would usually be better using the command line.

[Ravaa Bal]

Fair enough, thanks for your input!

[Campbell Ritchie]

You're welcome