title: how to make a java class to be an attribute of the other class
body: <p>Java noob here.Could you please model a simple scenario where one java class would be an attribute of the other class? Lets say classes 'Owner' with no specified attributes yet and a class 'Car' with attributes: model,ccEngine, owner. 
  So class Car has an attribute 'owner' of class Owner. Thank you for your time.</p>