What are some examples of method overriding in different programming languages?

What are some examples of method overriding in different programming languages?

Method overriding allows a subclass to provide a specific implementation of a method that is already defined in its superclass. For example, in Java, you can override the toString() method from the Object class.

Can you give me an example in Python?

Sure! In Python, you can override a method like this:

class Animal:
    def speak(self):
        return "Animal speaks"

class Dog(Animal):
    def speak(self):
        return "Woof!"

Here, the speak method in the Dog class overrides the one in the Animal class.

What about C++?

In C++, you can override a method using the virtual keyword. Here's an example:

class Base {
public:
    virtual void show() {
        cout << "Base class";
    }
};

class Derived : public Base {
public:
    void show() override {
        cout << "Derived class";
    }
};

In this case, the show method in Derived overrides the one in Base.

Are there any other languages you can show examples for?

Absolutely! In JavaScript, you can override methods in classes as well. For instance:

class Vehicle {
    start() {
        console.log('Vehicle started');
    }
}

class Car extends Vehicle {
    start() {
        console.log('Car started');
    }
}

Here, the start method in Car overrides the one in Vehicle.