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8.6

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

Asked by jvilla1983 in Theory, Software/Systems Design, Java Programming Language

Tags: ??, JFLEX and JavaCUP, JAVA, Firefox 2.0

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,
[+][-]03/16/08 09:01 AM, ID: 21137268Expert Comment

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[+][-]03/16/08 10:03 AM, ID: 21137523Author Comment

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[+][-]03/16/08 10:05 AM, ID: 21137526Author Comment

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[+][-]03/16/08 10:15 AM, ID: 21137564Expert Comment

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[+][-]03/16/08 10:41 AM, ID: 21137681Author Comment

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[+][-]03/16/08 10:50 AM, ID: 21137714Accepted Solution

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About this solution

Zones: Theory, Software/Systems Design, Java Programming Language
Tags: ??, JFLEX and JavaCUP, JAVA, Firefox 2.0
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Solution Provided By: CEHJ
Participating Experts: 1
Solution Grade: B
 
[+][-]03/18/08 08:03 AM, ID: 21151776Author Comment

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