Defining Classes in Kotlin
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In Kotlin, a class is a blueprint for creating objects that encapsulate data and behavior. Classes allow you to group related properties and functions together, making your code organized and reusable. To declare a class, use the class keyword followed by the class name and curly braces. Once a class is defined, you can create objects (instances) of that class using the class name as a constructor.
Below is a simple example that demonstrates how to declare a class and create an object in Kotlin.
Main.kt
12345678910111213package com.example class Person { var name: String = "" var age: Int = 0 } fun main() { val person = Person() person.name = "Alice" person.age = 30 println("Name: ${person.name}, Age: ${person.age}") }
In this example, the Person class is defined with two properties: name and age. Both properties have default values. The main function creates an object of the Person class using val person = Person(). The object's properties are then assigned values, and their values are printed using string interpolation. This demonstrates how you can define a class, instantiate it, and access or modify its properties in Kotlin.
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