The Three Benefits of Access Protection
Access protection has three main benefits:
- It allows you to enforce constraints on an object's state.
- It provides a simpler client interface. Client programmers don't need to know everything that's
in the class, only the public parts.
- It separates interface from implementation, allowing them to vary independently.
For instance consider making the
licensePlate
field of
Car
an instance of a new LicensePlate
class instead of a String
.
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Last Modified October 16, 1998
Copyright 1997-1998 Elliotte Rusty Harold
elharo@metalab.unc.edu