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6. Elementary Concept of Objects and Classes
This chapter presents essential concepts of Object-Oriented Programming (OOP), focusing on the core elements of classes and objects. Classes serve as blueprints to define attributes and methods, while objects represent instances with actual values. The chapter emphasizes the advantages of utilizing OOP, such as code organization, data security, and enhanced program maintenance.
Sections
This section introduces the fundamental concepts of objects and classes in Object-Oriented Programming, outlining their definitions, features, and significance.
Classes are templates that define attributes and methods for objects.
Objects are instances of classes with specific values assigned to their attributes.
Key OOP concepts include encapsulation, inheritance, and polymorphism.
Class
A blueprint or template that defines the attributes and methods for objects.
Object
An instance of a class that has actual values for the attributes defined by its class.
Attributes
Properties or characteristics of an object, such as color or size.
Methods
Actions or behaviors that an object can perform, such as start() or stop().
Encapsulation
Combines data and methods into a single unit, known as a class.
Inheritance
The mechanism of creating new classes from existing ones.
Polymorphism
The ability of different objects to respond to the same method call.
Practice Exercises
Total Questions
3
Estimated Time
6 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting