title: Not able to run JFlex generated lexer Java file
body: <p>So I used JFlex to generate a file called Yylex.java without any problems. When I try to compile it with the command <code>javac Yylex.java</code>, I get 30 errors, originating with this one: </p>
  
  <pre><code>Yylex.java:13: error: package java_cup.runtime does not exist
  import java_cup.runtime.Symbol;
  </code></pre>
  
  <p>This is obviously caused by the first import in my JFlex file. Since I'm trying to use this with CUP, I read that I need to have the java-cup-11a.jar file and the java-cup-11a-runtime.jar in the same folder as Yylex.java, which I do. Anyone know what's wrong?</p>