What Is Open Class in Kotlin
The Open Keyword Means “Open for Extension“: the Open Annotation on a Class Is the Opposite of Java’s Final: It Allows Others to Inherit from This Class. by...
The open keyword means “open for extension“: The open annotation on a class is the opposite of Java’s final : it allows others to inherit from this class. By default, all classes in Kotlin are final , which corresponds to Effective Java, Item 17: Design and document for inheritance or else prohibit it.
What is a class in Kotlin?
Kotlin Classes A class is a blueprint for the objects which defines a template to be used to create the required objects. Classes are the main building blocks of any Object Oriented Programming language. A Kotlin class is defined using the class keyword.
What is abstract class in Kotlin?
A class which is declared with abstract keyword is known as abstract class. An abstract class cannot be instantiated. Means, we cannot create object of abstract class. The method and properties of abstract class are non-abstract unless they are explicitly declared as abstract.
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