Mastering Kotlin

Polymorphism

Polymorphism is a concept referring to a class's ability to override behavior inherited from a base class. This allows class hierarchies to define similar patterns or behaviors that can be explicitly defined in child classes. The following is globally one way to think of it: animals move, but not all animals move the same way. We define how a dog moves in one way, but we use an entirely different way to define how a bird moves.

Again building on our previous example, the Programmer class can override the behavior of getFormattedName, which demonstrates the notion of polymorphic behavior, shown as follows:

class Programmer(firstName: String, lastName: String, val favoriteLanguage: String)    : Person(firstName, lastName) {    override ...