Impara 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


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package 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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Sezione 4. Capitolo 1

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Sezione 4. Capitolo 1