 is written in Java.  To invoke it, one needs
to use the Java interpreter to invoke the static method 
<tt>java_cup.Main()</tt>, passing an array of strings containing options.  
Assuming a Unix machine, the simplest way to do this is typically to invoke it 
directly from the command line with a command such as: 

<pre><tt>    java -jar java-cup-11b.jar <i>options</i>  <i>inputfile</i></tt></pre>

Once running, CUP expects to find a specification file on standard input
and produces two Java source files as 