finding an relative path

[ziv]

can you please help me how to find the relative path from where the
main class is running.
for example ifwe run the main class from c:\ so this function will
return the string associated with the path.
thanx

 

[Roedy Green]

can you please help me how to find the relative path from where the
main class is running.

That is called the current directory. See
http://mindprod.com/jgloss/file.html

 

[Miguel De Anda]

That is called the current directory. See
http://mindprod.com/jgloss/file.html

If you want the working directory it works fine but if you want to know
where the "main class is running" from (where MainClass.class) is at then it
won't work. I even tried it.

import java.io.*;

public class WorkingDir {
public static void main(String[] args) throws Exception {
File f = new File(".");
String path = f.getCanonicalPath();
System.out.println(path);
}
}

If I have the class file in a folder "WD/a/" and run this command from "WD/"

java -cp a WorkingDir

I get WD

Where if I run this command from "WD/a/"

java WorkingDir

I get WD/a


I found a small library somewhere once that managed to get that information.
Of course I can't find it now, but if you search the web you will find it.
In fact, it claims to get the directory where the jar file is if it is
running from a jar file.

 

[Tor Iver Wilhelmsen]

If you want the working directory it works fine but if you want to know
where the "main class is running" from (where MainClass.class) is at then it
won't work. I even tried it.

What you can try is asking the ClassLoader for the resource
"your/package/and.class". You will get an URL you can examine.