lexical-analysisparser-generatorjavacc

Could not load main class in JavaCC

I am AI student and we work with JavaCC. I am new with it. I was trying simple example and I had some errors.

1) I downloaded JavaCC 0.6 from it's website

2) I extracted it in disc C

3) I wrote this code in a file with extension ".jj"

PARSE_BEGIN(Test)

import java.io.*;
class Test
{
    public static void main(string [] args)
    {
        new Test(new InputStreamReader(System.in));
    start();
    }
}
PARSE_END(Test);
Token:
{
    <number: (["0"-"9"])+("." (["0"-"9"])+)?(("e"|"E")(["0"-"9"])+)?>|
    <plus: "+">    
}

void start():
{ }
{
    <number>(<plus><number>)*
}

4) I saved it and put it in javacc/bin folder

5) I wrote this line in command 

..."my Path"..javacc Test.jj

6) I had this error

Could not find or load main class javacc

Is there something I have to install before these steps? thx in advance

Solution

  • Use version 5 at https://java.net/projects/javacc/downloads . Version 6.0 is missing the scripts to run JavaCC. If you really want to use version 6.0 you can find the appropriate scripts in version 5, just copy them to version 6's bin directory and away you go.

    Update (2020): Since version 6 is now harder to find, I have put a copy at www.engr.mun.ca/~theo/JavaCC/javacc-6.1.0.zip