تمرین نوع های داده در کاتلین

                var fileName"" String = "log.txt"

                var maxAttempts: "" = 3

                var numOfChildren: "" = "3"

                var exchangeRate: Float = ""

                val password: String = "123456"
val passwordLength: Int = ""
println(passwordLength)

                val phoneNumber: String = "0939 7660086"
val phoneNumberLength: Int = phoneNumber.length
println(phoneNumberLength)

                val hashtag: String = "tamrin24.com"
val hashtagLength: Int = hashtag.length
println(hashtagLength)

                val imageResolution: String = "72"
val castedImageResolution: Int = imageResolution.""

                  println("تعداد حضار را وارد کنید")
  val attendees: "" = readLine()

  val chairsNeeded: Int = attendees!!.toInt() + 10

  println("صندلی نیاز دارید " + chairsNeeded.toString() + " شما به")

                val productPrice: String = "9.99"
val castedProductPrice: Float = ""