3. What is OOP?
• Object-oriented
programming (OOP) is a
computer programming
model that organizes
software design around
data, or objects, rather than
functions and logic.
7. Encapsulation
• Encapsulation means containing all
important information inside an
object, and only exposing selected
information to the outside world. This
principle hides the internal software
code implementation inside a class
and hides internal data inside of
objects. Encapsulation requires
defining some fields as private or
public.
8. Abstraction
• Abstraction means that the user
only interacts with selected
attributes and methods of an
object. It uses simple things to
represent complexity, the main goal
is to hide complexity details from
the user.
9. Inheritance
• Inheritance is one of the most
important aspects of OOP. It allows
classes to inherit features of other
classes. Put another way, parent
classes extend attributes and
behaviors to child
classes. Inheritance supports
reusability.
10. Polymorphism
• Polymorphism literally means “many
forms”. This principle focuses on
designing objects to share behaviors.
Building from inheritance,
polymorphism allows the same
method to execute different
behaviors in two ways: method
overriding and method overloading.
12. 1. Enables code reusability
• The idea of inheritance is one of the critical concepts
offered by object-oriented programming. A class’s
attributes can be passed down through inheritance,
eliminating the need for duplication of effort. Doing this
prevents the problems associated with repeatedly writing
the same code.
13. 2. Increases productivity in software
development
• We can create programs from pre-written, interconnected
modules rather than having to start from scratch, which
would save time and increase productivity. Thanks to the
OOP language, we can break the software into
manageable, discrete problems. Because it allows for the
division of labor in the creation of object-based programs,
object-oriented programming is modular.
14. 3. Makes troubleshooting simpler
• When object-oriented programming is used,
troubleshooting is made simpler since the user knows
where to look in the code to find the source of the
problem. Since the error will indicate where the issue is,
there is no need to inspect additional code areas.
15. 4. Reinforces security
• We can create programs from pre-written, interconnected
modules rather than having to start from scratch, which
would save time and increase productivity. Thanks to the
OOP language, we can break the software into
manageable, discrete problems. Because it allows for the
division of labor in the creation of object-based programs,
object-oriented programming is modular.
16. 5. Provides design advantages
• A significant development in software engineering has
been object-oriented development. Among other things, it
promises to shorten development duration and give firms a
competitive advantage.
