Pairs

Pairs represent a generic pair of two values.

// File:            Main.kt
// Programmer:      Engineer Nolverto Urias Obeso
// Creation Date:   06/21/2023
// Email:           nolvertou@gmail.com
// Description:     Using pairs

fun main(args: Array<String>) {
    val equipment = "fishnet" to "cashing fish"
    println(equipment)          // Output: (fishnet, cashing fish)
    println(equipment.first)    // Output: fishnet
    println(equipment.second)   // Output: cashing fish

    val equipment2 = "fishnet" to "catching fish" to "of a big size" to "and strong"
    println(equipment2)                 // Output: (((fishnet, catching fish), of a big size), and strong)
    println(equipment2.first)           // Output: ((fishnet, catching fish), of a big size)
    println(equipment2.second)          // Output: and strong
    println(equipment2.first.first)     // Output: (fishnet, catching fish)
    println(equipment2.first.second)    // Output: of a big size

    val (tool, use) = equipment
    println(equipment)          // Output: (fishnet, cashing fish)
    println(tool)               // Output: fishnet
    println(use)                // Output: cashing fish
    println("The $tool is a tool for $use")

    val equipmentString = equipment.toString()
    println(equipmentString)    // Output: (fishnet, cashing fish)

    fun giveMeATool(): Pair<String, String>{
        return ("fishnet" to "catching")
    }

    val (tool2, use2) = giveMeATool()
    println(tool2)  // fishnet
    println(use2)   // catching
}