Mohanad Aljhani

fun main (args:Array<String>) {
    var car_type = arrayListOf<String>()
    var prod_year = arrayListOf<Double>()
    var price = arrayListOf<String>()
    var km = arrayListOf<String>()

    var x = 1
    var i = 0

   
    val km1 = Regex("\\{0,4}\\d{4}")

    while (x != 0) {
        var car_type = ""
        var prod_year = ""
        var price = ""
        var km = ""

        println("enter the type of car no. " + (i + 1))

        car_type.add(readLine()!!.toString())
        println("enter the prod_year of car no. " + (i + 1))
        prod_year.add(readLine()!!.toDouble())
        println("enter the price of car no. " + (i + 1))
        while (km1.matches(km) == false) {
            km = readLine()!!.toint()
            if (!km1.matches(km))
                println("enter a correct km !!")
        }
        km.add(km)
        var counter=0;

    println(
        "choose from the following:\n 1- to print out the full data of car\n 2-to print out" +
                "a list of the cars names with prod above 10,000\n 3-to print out a list of the cars prod and their price \n" +
                " 4-to print out a list of the cars names with price more than 80\n 5-to print out a list of the cars typs and their pric\n" +
                " 6-to print out a list of the cars names and their km\n 7-to print out a list of the cars  type" +
                "and their prod year "
    )
    var k = 1
    var stop='r'
    do {
        var option = readLine()!!.toInt()
        when (option) {
            1 -> for (i in 0 until car_type.size) {
                println("the full data of the employee no: $k\n" + car_type[i] + " " + prod_year[i] + " " + km[i] + " " + price[i] + "\n")
                println("-----------------------------")
                k++
            }
            2 -> {
                println("enter a range of km: ")
                var from = readLine()!!.toDouble()
                var to = readLine()!!.toDouble()
                for (i in 0 until km.size)
                    if (km[i].toDouble() in from..to) println(car_type[i] + " " + price[i])
            }
            3 -> for (i in 0 until car_type.size)
                println(car_type[i] + " " + price[i])
            4 -> {
                println("enter a range of pric: ")
                var from = readLine()!!.toInt()
                var to = readLine()!!.toInt()
                for (i in 0 until price.size)
                    if (price[i] in from..to) println(car_type[i] + " " + price[i])
            }
            5 -> for (i in 0 until car_type.size)
                println(car_type[i] + " " + km[i])
            6 -> for (i in 0 until km.size)
                println(car_type[i] + " " + prod_year[i] * (((price[i] / 20) / 100) * 12))
            7 -> for (i in 0 until car_type.size)
                println(car_type[i] + " " + price[i] * 12)
            else -> println("ENTER A CORRECT price !\nOR N to STOP")
        }
        println("do you want to make another enquiry ?\nY/N")
        stop= readLine()!!.single()


    }
    while (stop == 'Y' || stop=='y')}}