Advantages and Disadvantages Of Inheritance

 Inheritance

• Method of reuse in which new functionality is obtained by
  extending the implementation of an existing object
•  The generalization class (the superclass) explicitly captures the
  common attributes and methods
• The specialization class (the subclass) extends the implementation
  with additional attributes and methods

Advantages and Disadvantages Of Inheritance:
Advantages:

• New implementation is easy, since most of it is inherited
• Easy to modify or extend the implementation being reused

Disadvantages:

• Breaks encapsulation, since it exposes a subclass to implementation details
  of its superclass
• "White-box" reuse, since internal details of superclasses are often visible to
  subclasses
• Subclasses may have to be changed if the implementation of the superclass
  changes
• Implementations inherited from superclasses can not be changed at runtime