Swift Quick Syntax Reference

Chapter    39

Inheritance

Classes have the ability to inherit methods and properties from a parent class. Inheritance encourages code reuse. Generally, when you inherit a class, you will add custom properties and methods to the new class.

For instance, if you wanted to create a new class to manage the employees in your small business, you may want to inherit your work from the Parent class into a new class called Employee. Listing 39-1 shows how you would do that.

Listing 39-1. Inheriting Person

class Person {    var name: String = "Name"    var age:Int = 0    func profile() -> String {        return "I'm \(self.name) and I'm \(self.age) years old."    }}class Employee: Person {}

In Listing 39-1, your new class Employee is inheriting Person ...