A reference to the message is kept in one of the object's variables.
Here is what we have so far for HelloObject:
class HelloObject                                  
{                                                  
  void speak()                                     
  { 
    System.out.println("Hello from an object!");
  }
}
Here is a start on improving HelloObject:
Modify the definition of HelloObject
to include a String reference variable.
Modify the speak() method so that
it uses that variable.