ECONOMICS (CBSE/UGC NET)

Detailed explanation-1: -Override Override annotation informs the compiler that the element is meant to override an element declared in a superclass. Overriding methods will be discussed in Interfaces and Inheritance. While it is not required to use this annotation when overriding a method, it helps to prevent errors.

Detailed explanation-2: -In other words, method overriding occurs when a subclass provides a particular implementation of a method declared by one of its parent classes. The ability for a subclass to override a method allows a class to inherit from a superclass with “near enough” actions and then change it as required.

Detailed explanation-3: -Instance methods can be overridden only if they are inherited by the subclass. A method declared final cannot be overridden. A method declared static cannot be overridden but can be re-declared. If a method cannot be inherited, then it cannot be overridden.

Detailed explanation-4: -Subclass must override methods that are declared abstract in the superclass, or the subclass itself must be abstract. Writing Abstract Classes and Methods discusses abstract classes and methods in detail.