Needing some help with setting the classpath to work with Jflex and JavaCUP

Hi,

I'm having trouble setting up JFlex and JavaCUP on my system at home. Here is my output..

C:\Parcing>java java_cup.Main input.cup
Exception in thread "main" java.lang.NoClassDefFoundError: java_cup/Main
Caused by: java.lang.ClassNotFoundException: java_cup.Main
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)

C:\Parcing>java JFlex.Main input.flex
Exception in thread "main" java.lang.NoClassDefFoundError: JFlex/Main
Caused by: java.lang.ClassNotFoundException: JFlex.Main
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)

C:\Parcing>javac MyParser.java
MyParser.java:1: package java_cup.runtime does not exist
import java_cup.runtime.*;
^
MyParser.java:6: cannot find symbol
symbol  : class parser
location: class MyParser
                        parser parser_obj = null;
                        ^
MyParser.java:8: cannot find symbol
symbol  : class parser
location: class MyParser
        parser_obj = new parser(new Yylex(System.in));
                         ^
MyParser.java:8: cannot find symbol
symbol  : class Yylex
location: class MyParser
        parser_obj = new parser(new Yylex(System.in));
                                    ^
MyParser.java:12: cannot find symbol
symbol  : class parser
location: class MyParser
                                        parser_obj = new parser(new Yylex(reader
));
                                                         ^
MyParser.java:12: cannot find symbol
symbol  : class Yylex
location: class MyParser
                                        parser_obj = new parser(new Yylex(reader
));
                                                                    ^
MyParser.java:20: cannot find symbol
symbol  : class Symbol
location: class MyParser
      Symbol parse_tree = null;
      ^
7 errors

any ideas as to how to get this to work properly?

Thanks,