Polymorphism in Python
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Questions and Answers

What is the literal meaning of the word 'Polymorphism'?

  • Many forms (correct)
  • Multiple inheritance
  • Single inheritance
  • Many classes

    • How many types of Polymorphism are mentioned in the content?

  • Two (correct)
  • One
  • Four
  • Three

    • What is the primary purpose of Method Overriding?

  • To allow different ways to call a method with different parameters
  • To provide a default implementation of a method
  • To change or extend the behavior of an inherited method (correct)
  • To define multiple methods in the same scope

    • In which scenario is Method Overloading not supported?

    <p>In Python</p> Signup and view all the answers

    What is a characteristic of Method Overloading?

    <p>Must have the same method name but different parameters</p> Signup and view all the answers

    What is the key difference between Method Overloading and Method Overriding?

    <p>Class hierarchy</p> Signup and view all the answers

    Which of the following is NOT a feature of Method Overriding?

    <p>Defining multiple methods in the same scope</p> Signup and view all the answers

    What is the primary difference between the purpose of Method Overloading and Method Overriding?

    <p>To allow different ways to call a method with different parameters vs to change or extend the behavior of an inherited method</p> Signup and view all the answers

    Which of the following statements about Polymorphism is true?

    <p>It is a feature that allows us to define methods in the child class with the same name as defined in their parent class.</p> Signup and view all the answers

    Which of the following is a characteristic of Method Overloading?

    <p>It allows different ways to call a method with different parameters.</p> Signup and view all the answers

    What is the main difference between Method Overloading and Method Overriding?

    <p>Method Overloading requires inheritance, while Method Overriding does not require inheritance.</p> Signup and view all the answers

    Which of the following is a scenario where Method Overriding is used?

    <p>When a class wants to change the behavior of an inherited method.</p> Signup and view all the answers

    What is the primary purpose of Method Overloading?

    <p>To allow different ways to call a method with different parameters.</p> Signup and view all the answers

    Which of the following statements about Method Overriding is false?

    <p>Method Overriding allows different ways to call a method with different parameters.</p> Signup and view all the answers

    What is an example of Method Overloading?

    <p>A class defining multiple methods with the same name but different parameters.</p> Signup and view all the answers

    Which of the following is a scenario where Polymorphism is used?

    <p>When a class wants to define methods with the same name as defined in their parent class.</p> Signup and view all the answers

    Study Notes

    Polymorphism

    • Polymorphism comes from the Greek words "POLY" and "MORPHISM", meaning "many forms".
    • It is an important feature in Python that allows defining methods in a child class with the same name as in their parent class.

    Types of Polymorphism

    • There are two types of Polymorphism:
      • Method Overloading
      • Method Overriding

    Method Overloading

    • Defining multiple methods in the same scope (usually in the same class) with the same name but different signatures (number or type of parameters).
    • Purpose: To allow different ways to call a method with different parameters.
    • Characteristics:
      • Must have the same method name but different parameters.
      • Does not require inheritance.
      • Usually within the same class.

    Method Overriding

    • Subclass provides a specific implementation of a method already defined in its superclass.
    • Purpose: To change or extend the behavior of an inherited method.
    • Characteristics:
      • Must have the same name and parameters as the method in the superclass.
      • Requires a class hierarchy (inheritance).

    Polymorphism

    • Polymorphism comes from the Greek words "POLY" and "MORPHISM", meaning "many forms".
    • It is an important feature in Python that allows defining methods in a child class with the same name as in their parent class.

    Types of Polymorphism

    • There are two types of Polymorphism:
      • Method Overloading
      • Method Overriding

    Method Overloading

    • Defining multiple methods in the same scope (usually in the same class) with the same name but different signatures (number or type of parameters).
    • Purpose: To allow different ways to call a method with different parameters.
    • Characteristics:
      • Must have the same method name but different parameters.
      • Does not require inheritance.
      • Usually within the same class.

    Method Overriding

    • Subclass provides a specific implementation of a method already defined in its superclass.
    • Purpose: To change or extend the behavior of an inherited method.
    • Characteristics:
      • Must have the same name and parameters as the method in the superclass.
      • Requires a class hierarchy (inheritance).

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    Related Documents

    CMPE 103 Module 7: Method Overloading and Overriding PDF

    Description

    Understand the concept of polymorphism in Python, including its types such as method overloading and method overriding.

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