To review: All argument passing in JAVA is performing by passing handles. You are only passing a handle to an object that lives outside the method, so if you perform any modifications with that handle you modify the outside object

• Aliasing happens (if you don’t want it to happen, instead of assigning one object to another you should assingn the value of one part of the object to the value of the same part in another object.
• There is no logical objects, only logical handles.
• Handles have scopes, objects don’t