Step 4 Add a WCMParserBean and a WCMVariableBean

Now we will add two components that don't show up on the finished applet, but are used by WCM to compute the math. Using the procedures outlined previously, add a WCMParserBean and a WCMVariableBean. Instead of dropping them onto the applet, drop them onto the white space just below the applet. The WCMParserBean is used to parse function definitions and the WCMVariableBean is used to give a name to variables that users can enter into function definitions. 

You should see something like the following: