KotlinInheritance

Kotlin Inheritance (Subclass and Superclass)

In Kotlin, it is possible to inherit class properties and functions from one class to another. We group the "inheritance concept" into two categories:

• subclass (child) - the class that inherits from another class
• superclass (parent) - the class being inherited from

In the example below,MyChildClass (subclass) inherits the properties from theMyParentClass class (superclass):

// Superclass
open class MyParentClass {  val x = 5}// Subclassclass MyChildClass: MyParentClass() {  fun myFunction() {    println(x) // x is now inherited from the superclass  }}// Create an object of MyChildClass and call myFunctionfun main() {  val myObj = MyChildClass()  myObj.myFunction()}

Example Explained

Use theopen keyword in front of thesuperclass/parent, to make this the class other classes should inherit properties and functions from.

To inherit from a class, specify the name of thesubclass, followed by a colon:, and then the name of thesuperclass.