difference between method overloading and method overriding in python

Publié le: 05 mars 2024
sur la chaîne: CodeDash

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certainly! below is an informative tutorial explaining the difference between method overloading and method overriding in python, along with code examples:
in object-oriented programming, both method overloading and method overriding are techniques used to achieve polymorphism, where different classes can be treated as instances of the same class. while they might sound similar, they serve different purposes and are used in different contexts.
method overloading refers to defining multiple methods in a class with the same name but with different parameters. this allows the same method name to behave differently based on the number or types of parameters it receives.
in the above example, the add method is overloaded. depending on the number of arguments passed, it behaves differently. however, in python, this does not work as expected. the last defined add method with three parameters will overshadow the first one, and trying to call add with two parameters will raise an error.
method overriding, on the other hand, occurs when a derived class provides a specific implementation of a method that is already provided by its base class. it allows a subclass to provide a specific implementation of a method that is already defined in its superclass.
in this example, the speak method is overridden in the dog class. when speak is called on a dog object, the implementation in the dog class is executed instead of the one in the animal class.
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understanding the difference between method overloading and method overriding is crucial for writing efficient and maintainable object-oriented code in python. both techniques play an essential role in achieving polymorphism and code reuse.
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