The following information was included in this chapter:
inheritance and its implications in OOP
overriding and hiding of superclass members
method overriding vs. method overloading
usage of super reference to access superclass members
usage of this() and super() calls, including constructor chaining
interfaces and multiple interface inheritance
subtype-supertype relationship
conversions due to assigning, casting, and passing reference values
identifying the type of objects using the instanceof operator
polymorphism and dynamic method lookup
inheritance (is-a) vs. aggregation (has-a)