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Questions and Answers
What does polymorphism mean in the context of programming?
What does polymorphism mean in the context of programming?
- Specific attributes of an object
- Many characteristics of an object
- Many forms or ways for a thing or action (correct)
- Repeated code segments
In object-oriented programming, what is the significance of DRY?
In object-oriented programming, what is the significance of DRY?
- Focusing on reusable code and avoiding repetition (correct)
- Defining custom data types
- Creating complex inheritance hierarchies
- Creating unique identifiers for objects
What do properties do in object-oriented programming?
What do properties do in object-oriented programming?
- Describe the characteristics of an object (correct)
- Specify the inheritance relationship
- Store temporary data
- Control the flow of a program
How is constructor overloading an example of polymorphism?
How is constructor overloading an example of polymorphism?
What does the acronym OOP stand for?
What does the acronym OOP stand for?
Which of the following best describes the concept of attributes in object-oriented programming?
Which of the following best describes the concept of attributes in object-oriented programming?
What does the acronym DRY stand for?
What does the acronym DRY stand for?
How can you implement polymorphism in classes?
How can you implement polymorphism in classes?
What is one benefit of using OOP in programming?
What is one benefit of using OOP in programming?
What is a practical application of attributes in object-oriented programming?
What is a practical application of attributes in object-oriented programming?
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Study Notes
History of Object Oriented Programming
- The term "Object-Oriented Programming" (OOP) was coined by Alan Kay around 1966.
- The language Simula, developed in 1967, was the first to feature OOP.
- OOP grew in popularity in the 1990s due to C++.
What Is Object-Oriented Programming?
- OOP is about creating "objects", which are groups of interrelated variables and functions.
- OOP is based on the concept of objects and classes, making it close to real-world scenarios.
Key Concepts of OOP
- Classes and objects
- Methods (functions of an object)
- Properties (variables of an object)
- Encapsulation (data hiding)
- Inheritance (hierarchical relationships between classes)
Advantages of OOP
- Provides a clear program structure
- Easy maintenance and modification of existing code
- Enhances program modularity
- Presents a good framework for code libraries
- Imparts code reusability
Four Pillars of Object-Oriented Programming
Encapsulation
- Hides unnecessary details and makes it easier to manage the program structure
- Each object's implementation and state are hidden behind well-defined boundaries
Inheritance
- Allows for code reuse
- Captures a hierarchical relationship between classes and objects
Abstraction
- Hides details and exposes only essential features of a concept or object
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