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Method Overriding (Polymorphism) Video Lecture | Crash Course for EmSAT Achieve
FAQs on Method Overriding (Polymorphism) Video Lecture - Crash Course for EmSAT Achieve
| 1. What is method overriding in Python? |  |
Ans. Method overriding in Python refers to the ability of a subclass to provide a different implementation of a method that is already defined in its superclass. This allows the subclass to inherit the method from the superclass but modify its behavior according to its specific requirements.
| 2. How is method overriding related to polymorphism in Python? | |
Ans. Method overriding is a key concept in achieving polymorphism in Python. Polymorphism refers to the ability of an object to take on many forms. By using method overriding, different objects can use the same method name but have different implementations, allowing for polymorphic behavior based on the specific object type.
| 3. Can method overriding be done between unrelated classes in Python? | |
Ans. No, method overriding can only be done between related classes in Python. In order to override a method, the subclass must inherit from the superclass containing the method. If two classes are unrelated, they do not share a common superclass and therefore cannot override each other's methods.
| 4. How does Python determine which implementation of an overridden method to use? | |
Ans. When a method is called on an object, Python first checks if the object's class has its own implementation of the method. If it does, Python uses that implementation. If not, Python looks for the method in the object's superclass and uses its implementation. This process continues up the class hierarchy until an implementation is found or the top-level superclass is reached.
| 5. Can method overriding change the return type of a method in Python? | |
Ans. Yes, method overriding can change the return type of a method in Python. However, the return type of the overriding method must be a subclass of the return type of the overridden method. This is known as covariant return types, and it allows for more specific return types in the subclass while still maintaining compatibility with the superclass.
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Nov 24, 2024 Last updated |
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