What keyword is used inside a subclass method to refer to a method defined in the superclass?

The keyword "super" is used in a subclass method to refer to a method defined in the superclass. This keyword allows the subclass to access methods and properties of its parent class, effectively enabling the subclass to extend or modify the behavior of the methods defined in the superclass.

Using "super" is particularly useful in cases where a subclass overrides a method from its parent class but still wants to call the original implementation of that method. This approach helps avoid redundancy by leveraging existing functionality while allowing for customization specific to the subclass.

For example, if you have a method in a superclass that performs a certain task, and you want to enhance that task in the subclass, you would use "super.methodName()" to invoke the original method implementation before or after your own code. This keeps the code cleaner and promotes better code reuse across class hierarchies.

The other keywords and terms like "subclass," "base," and "parent" do not serve this specific purpose in common programming languages, making "super" the appropriate choice for this context.