A state is the condition of an object at an instance of time.
For example a phone is in an idle state it is taken off the hook
A state representation can be divided into three sections
- state name
- this is supplied regardless of whether the state representation is subdivided or not
- state variable
- three commonly used state variable are entry, exit and do. A good example of an object that has state variables is a fax machine
- activities
- these represent action that can be carried out during the state
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