Description: An abstract method is a function declaration that does not have a concrete implementation in the class where it is defined. Instead, it is expected that derived classes provide their own implementation of this method. This concept is fundamental in object-oriented programming, as it allows for the definition of common behavior that must be implemented by subclasses, thus promoting code reuse and the creation of more organized class hierarchies. Abstract methods are declared using the ‘abstract’ keyword and are part of abstract classes, which cannot be instantiated directly. This means that any class containing an abstract method must also be declared as abstract. The main advantage of using abstract methods is that they force subclasses to implement certain methods, ensuring that specific interfaces and expected behaviors are met. This is especially useful in the design of complex systems, where different components are required to follow a specific contract without dictating how they should do so. In summary, abstract methods are a powerful tool for establishing a clear and structured framework in object-oriented programming.
