It also defines which methods the child class must execute individually. The parent class, when used correctly, contains all the factors that a child class would access directly. Identifying the parent classes and child classes form a hierarchy that passes from lesser to higher productivity is part of the secret to effectively applying polymorphism. When Is It Ideal to Apply Overriding in Java? Overridden methods allow one to call methods from any derived class object without identifying the form of the modified super-class.

The ability to use existing code libraries to call methods on new class instances without re-compiling, while preserving a clean abstract interface, is an incredibly powerful weapon. The most effective object-oriented programming brings to bear on code reuse and robustness is Dynamic Process Execution. Overridden methods are also another way Java embraces polymorphism's 'one application, many methods' aspect. The void engine() method within Bike Class and Car Class is called the overriding method.Īs previously mentioned, overridden methods allow Java to accept polymorphism at runtime. In the above code, void engine() within Vehicle class is called overridden method. car is based on vehicle category so it's a child class but changing the output as bike engine here we create method as same as in parent class

we use extends keyword to call parent class bike is based on vehicle category so its a child class but changing the output as vehicle engine here we create a method as vehicle has engine here we declare vehicle as a parent class But if the method is triggered with an object from a subclass, the child class's version will be used.Īlso Read: The Best Java Programs for Beginners and Experienced Programmers to Practice and Upskill Example 1: Code: If it implements a method with an object from a parent class, the parent class's version will be used. The object that is used to trigger a method specifies the variant of the process that is executed.

Java code for bank management system