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Kotlin Inheritance

Class Inheritance

Kotlin inheritance uses open classes with override methods.

Introduction to Kotlin Inheritance

Inheritance is a fundamental concept in object-oriented programming that allows a class to inherit properties and behavior from another class. In Kotlin, inheritance is achieved using open classes, which can be subclassed, and override methods, which enable behavior customization in subclasses.

Defining Open Classes

In Kotlin, a class is final by default, meaning it cannot be subclassed. To allow a class to be inherited, you must declare it as open. This keyword indicates that the class is open for extension.

Creating Subclasses

Once a class is marked as open, it can be subclassed. You can create a subclass using the : operator, followed by the name of the superclass.

Overriding Methods

Subclasses can override methods from their superclass to provide specific behavior. The override keyword is used to indicate that a method is being overridden.

Using Inheritance in Kotlin

Inheritance in Kotlin promotes code reuse and can simplify your codebase by eliminating redundancy. By defining common behavior in a superclass, subclasses can inherit and extend this behavior as needed.

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