What is OOP?
Object
oriented programming(OOP) is a fairly
new way to approach the task of programming. It supersedes the so called procedural
or structured programming languages like Algol, Pascal or C, that
have been around since the 1960s. In short, it is the latest version of C. The
essence of structured programming is to
reduce a program into smaller parts and then code these elements more or less independently from each other.
reduce a program into smaller parts and then code these elements more or less independently from each other.
Although structured
programming has yielded excellent results when applied to moderately complex programs,
it fails when a program reaches a certain size. To allow for more complex
programs to be written, the new approach of OOP was invented.
All OOP languages, including
C++, share the following three capabilities:
Encapsulation:
The ability
to define a new type and a set of operations on that type, without revealing
the representation of the type.
Inheritance :
The ability to create new types that inherit
properties from existing types.
Polymorphism:
The ability to use one name for
two or more related but technically different purposes; “one interface,
multiple methods."
