Bison Java Interface

[Marc Mendiola]

To whom it may concern,

I am currently new to GNU Bison and thus, have only  read the manual briefly.  
I want to use the Java Interface to implement my parser.  I have two questions.

(1) I am using a Macbook with GNU Bison version 2.3 installed.  How can I 
upgrade to the latest version of Bison?  I've tried downloading the tar file 
and  using the commands described in the README and INSTALL files (i.e. 
./configure, make, make install).  However, the version does not upgrade.

(2) Are there any online examples which use Java to generate a parser?  I've 
gone through the C examples provided in the manual, but have not been able to 
find  any Java examples online.

I would appreciate any help you can provide.  Thanks!

Best regards,

Marc