how to determine if jar or class file is executable
 

How can I determine if a particular class file/jar file is directly
executable, meaning it has a main etc.

Re: how to determine if jar or class file is executable
 

On 15 Aug 2003 14:45:16 -0700, jobs239@hotmail.com (kaith) wrote or
quoted :

>How can I determine if a particular class file/jar file is directly
>executable, meaning it has a main etc.

You can read and parse the manifest. It is just a text file entry. I
don't know of a more direct way. It still won't necessarily execute.

--
Canadian Mind Products, Roedy Green.
Coaching, problem solving, economical contract programming.
See http://mindprod.com/jgloss/jgloss.html for The Java Glossary.

Re: how to determine if jar or class file is executable
 

Roedy Green <roedy@mindprod.com> wrote in message news:<qmqqjvgkqe445l91jpsblufb8nqap6gruk@4ax.com>. ..
> On 15 Aug 2003 14:45:16 -0700, jobs239@hotmail.com (kaith) wrote or
> quoted :
>
> >How can I determine if a particular class file/jar file is directly
> >executable, meaning it has a main etc.
>
> You can read and parse the manifest. It is just a text file entry. I
> don't know of a more direct way. It still won't necessarily execute.

To read the manifest use

http://java.sun.com/j2se/1.4.2/docs/...l#getManifest()

For the class you could use reflection to see is a method

public static void main(String[] args)

is present.