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Questions and Answers
What is another name for dynamic or runtime polymorphism?
What is another name for dynamic or runtime polymorphism?
- Late binding (correct)
- Early binding
- Method overloading
- Static binding
Which feature allows a subclass to provide a specific implementation of a method already provided by its superclass?
Which feature allows a subclass to provide a specific implementation of a method already provided by its superclass?
- Overriding (correct)
- Inheritance
- Encapsulation
- Overloading
What must be the same in method overriding for dynamic polymorphism?
What must be the same in method overriding for dynamic polymorphism?
- Number of parameters and return type
- Number of parameters and parameter type
- Method name and return type
- Method name and method signature (correct)
Which type of polymorphism is method overriding an example of?
Which type of polymorphism is method overriding an example of?
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What does dynamic or runtime polymorphism require in terms of method implementation?
What does dynamic or runtime polymorphism require in terms of method implementation?
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Study Notes
Object-Oriented Programming (OOP) Introduction
- By the end of this lecture, students will be able to understand Polymorphism, Method Overriding, Method Overloading, Overriding vs Overloading, and the Tostring() Method.
Polymorphism
- Polymorphism is a Greek word, meaning "one name many forms" or "many forms of one name".
- It means one object has multiple forms or has one name with multiple functionalities.
- "Poly" means many and "morph" means forms.
- Polymorphism provides the ability for a class to have multiple implementations with the same name.
- It is one of the core principles of Object-Oriented Programming, along with encapsulation and inheritance.
Key Concepts
- Method Overriding
- Method Overloading
- Overriding vs Overloading
- Tostring() Method
- Recursion Concept
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