anchor.diff:  public void onSelect(int index, Button value);
   
   ----
  +
   
   
   === Methods Specific to the CheckBox Class:
  
positive.code: ----
  
  
  === Abstract Event Methods:
  
  [source,java]
  
negative.code: *  Manages the interaction between any number of Button derived classes
  *  Provides the abstract method onSelect for executing code when a Radio Button is selected by the user.
  
  *Sample Usage:*
  
  [source,java]
  ----
  