Database Management System - TCCI
Object-oriented
programming (OOP) is a programming paradigm based on the concept
of "objects", which may contain data, in the form
of fields, often known as attributes; and code, in the
form of procedures, often known as methods. A distinguishing
feature of objects is that an object's procedures can access and often modify
the data fields of the object with which they are associated.
OOP is
a programming language model organized
around objects rather than "actions" and data rather than
logic. Historically, a program has been viewed as a logical procedure
that takes input data, processes it, and produces output data.
Before starting object oriented
programming language, you should understand basic concepts of oopl, which are
following:
Object: an entity that consists
of both data and procedures to manipulate the data.
Class: a class is an
extensible program-code-template for creating objects, providing initial values
for state (member variables) and implementations of behaviour (member functions
or methods).
Abstraction: The process of
picking out (abstracting) common features of objects and procedures.
Encapsulation: The process of
combining elements to create a new entity. A procedure is a type of
encapsulation because it combines a series of computer instructions.
Data hiding: The process of
hiding details of an object or function. Information hiding is a powerful
programming technique because it reduces complexity and provide security.
Inheritance: a mechanism to
reuse code in new program from old program.
Polymorphism: More than one form
of function.
Messaging: Message passing is a
form of communication used in parallel programming and object-oriented
programming.
Advantages of Object Oriented
Programming
All of these basic concepts are
beneficial to increase space and time efficiency.
OOPL - Object Oriented
Programming Languages
An object-oriented programming language (OOPL)
is a high-level programming language based on the object-oriented
model. Examples of object-oriented programming languages
include Java,C++ and Smalltalk.
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