The Importance of Scope
Multiple objects can be instantiated from a single class. Each of these objects has a unique identity and state. This is an important point. Each object is constructed separately and is allocated its own separate memory. However, some attributes and methods may, if properly declared, be shared by all the objects instantiated from the same class, thus sharing the memory allocated for these class attributes and methods.
Methods represent the behaviors of an object; the state of the object is represented by attributes. There are three types of attributes:
• Local attributes
• Object attributes
• Class attributes
Local ...
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