47. What is inheritance in Python classes? A) The ability to define a new class that is a modified version of an existing class B) The ability to define a new instance variable for an existing class C) The ability to define a new method for an existing class D) The ability to define a new class hierarchy for an existing class 48. What is polymorphism in Python classes? A) The ability to define multiple methods with the same name in a class B) The ability to define multiple instance variables with the same name in a class C) The ability to define multiple classes with the same name in a program D) The ability to define multiple modules with the same name in a program
Question
- What is inheritance in Python classes?
A) The ability to define a new class that is a modified version of an existing class
B) The ability to define a new instance variable for an existing class
C) The ability to define a new method for an existing class
D) The ability to define a new class hierarchy for an existing class
- What is polymorphism in Python classes?
A) The ability to define multiple methods with the same name in a class
B) The ability to define multiple instance variables with the same name in a class
C) The ability to define multiple classes with the same name in a program
D) The ability to define multiple modules with the same name in a program
Solution
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The correct answer is A) The ability to define a new class that is a modified version of an existing class. Inheritance in Python classes allows us to define a class that inherits all the methods and properties from another class. The new class is known as a derived (or child) class and the one from which it inherits is called the base (or parent) class.
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The correct answer is A) The ability to define multiple methods with the same name in a class. Polymorphism in Python classes allows us to define methods in the child class with the same name as defined in their parent class. As we know, a child class inherits all the methods from the parent class. However, if you want to modify a method in a child class that it has inherited from the parent class, you can do so by using the same method name with a different implementation. This is known as method overriding, a part of polymorphism.
Similar Questions
What type of inheritance is illustrated in the following Python code?class A(): passclass B(A): passclass C(B): passMulti-level inheritanceMultiple inheritanceHierarchical inheritanceSingle-level inheritance
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In Python, *polymorphism* refers to the way in which different object classes can share the same method name
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