Page 221 - Computer_Science_F5
P. 221
Computer Science Meaning of Object Oriented
Programming
Object-oriented
programming
(OOP) is a programming concept
that revolves around the idea of
“Car” and one object instantiated from READING ONLY
“objects.” These objects hold data
as fields (also called attributes or
properties) and code as procedures
(also called methods). OOP enables
developers to build programs in a
modular way and create code that
can be reused. Figure 4.1: A car as an object
In OOP, objects are created from Another example can be represented by a class
classes, which act as templates for “Plant” with objects like Apple and Orange.
creating objects. Classes specify Apple has attributes like Name(Apple), Color
the characteristics and actions that (Red), Taste (Sweet), and Weight (150g).
objects of that class will possess. It also has a method like Ripen(), rote(),
isSweet().
FOR ONLINE
Figure 4.1 represent a class named
The structures can be further explained as
this class: Toyota. The object Toyota follows:
has specific attributes and methods. (i) Classes: Classes are user-defined data
Attributes are characteristics or types that act as blueprints for creating
properties of an object, while methods individual objects. They define the
are actions or behaviors that the object attributes and methods that objects
can perform. For instance, Toyota of that class will have.
has attributes such as Make (Toyota),
Model (Carina), Color (Silver), (ii) Objects: Objects are instances of a
Year (2021), and Mileage (31500 class. They represent specific entities
km), and it can perform methods with their own unique data and
like StartEngine(), Accelerate(), and behaviourr. Objects can correspond to
Brake(). This summary provides a real-world objects or abstract entities.
clear overview of the attributes and (iii) Methods: Methods are functions
methods associated with each object defined inside a class that describe the
within the “Car” class. The structure behaviors of an object. They are used to
of Object Oriented Programming can perform specific actions or operations
be explained using a car example, as on objects. Methods can be reused and
in Figure 4.1. encapsulated within objects.
212
for Advanced Secondary Schools
Computer Science Form 5.indd 212 23/07/2024 12:33
