What is Method Overriding in Java?

What is Method Overriding in Java?
Method overriding is a fundamental concept in Java that allows a subclass to provide a specific implementation of a method that is already defined in its superclass. This feature is crucial for achieving polymorphism, particularly dynamic or runtime polymorphism, where the actual method to be invoked is determined at runtime based on the object being referred to.

For a method to be overridden, the subclass must define a method with the same name, return type, and parameters as the method in the superclass. The @Override annotation is typically used to explicitly indicate that a method is intended to override a method in the superclass. This annotation is not mandatory but is highly recommended as it makes the code more readable and helps catch errors, such as when the method signature in the subclass does not exactly match the one in the superclass.

When a method is overridden in a subclass, the subclass version of the method is called even if the object is referenced by a variable of the superclass type. This behavior is the essence of runtime polymorphism. Method overriding also plays a vital role in the implementation of design patterns and frameworks, where it's common to extend base classes and override methods to alter or extend their functionality.

One important rule in method overriding is that the overridden method cannot be less accessible than the method in the superclass. For example, if the superclass method is declared as public, the overriding method in the subclass cannot be protected or private. Additionally, the overriding method cannot throw more checked exceptions than the method it overrides.

Method overriding is not only about altering behavior but also about making object-oriented programming more flexible and modular. It allows developers to create more reusable and maintainable code by enabling subclasses to modify or completely replace the behavior inherited from parent classes.

TCCI Computer classes provide the best training in all computer courses online and offline through different learning methods/media located in Bopal Ahmedabad and ISCON Ambli Road in Ahmedabad.

For More Information:

Call us @ +91 98256 18292

Visit us @ http://tccicomputercoaching.com/