دستورات شرطی (selector) ها در کاتلین

val condition = true

if(!condition){
  ...
}
                  

if(condition0 && condition1 && ... && conditionN) {
  ...
}
                  

if(condition0 || condition1 || ... || conditionN){
...
}
                  

if(condition0 xor condition1){
  ...
}
                  

val input = Scanner(System.in);

println("Enter a number: ");
val num = input.nextInt();

if (num % 2 == 0 ∓∓ num % 3 == 0)
  println("Number is divisible by 2 and 3");

if (num % 2 == 0 || num % 3 == 0)
  println("Number is divisible by 2 or 3");

if (num % 2 == 0 ^ num % 3 == 0)
  println("Number is divisible by 2 or 3 but not both");
                  

val v = 6

val isNumberInRange = v in 0..10

println("$v is between 0 to 10? $isNumberInRange")
                  

val isNumberInRange = v in 0 until 10
                  

val v = "Hello Condition!"
val isString = v is String
val isChar = v is Char

println("Is v String? $isString")
println("Is v Char? $isChar")
                    

val input = Scanner(System.in)
println("Enter a day in week (between 1 and 7): ")
val day = input.nextInt()
when(day){
  1 -> println("Saturday")
  2 -> println("Sunday")
  3 -> println("Monday")
  4 -> println("Tuesday")
  5 -> println("Wednesday")
  6 -> println("Thursday")
  7 -> println("Friday")
  else -> println("Out of days not defined")
}
                    

val v = 0
when(v){
  0 , 1 -> println("Is a binary number")
  else -> println("Not a binary number")
}
                    

val input = Scanner(System.in)

when(val v = input.nextInt()){
  0 -> println("value is $v and equals to false")
  1 -> println("value is $v and equals to true")
  else -> println("value is $v and not announced in binary")
}
                    

val input = Scanner(System.in)

println("Enter weight in kg")

val weight = input.nextDouble()

println("Enter height in meter")

val height = input.nextDouble()

val bmi = weight / (height * height)

when{
  bmi < 18.5 -> println("Underweight")
  bmi < 25 -> println("Normal")
  bmi < 35 -> println("Overweight")
  else -> println("obese")
 }
                    

val v = Scanner(System.in).nextInt()

when(v){
  in 0 until 10 -> println("Number has one digit")
  in 10 until 100 -> println("Number has two digits")
  in 100 until 1000 -> println("Number has three digits")
  else -> println("Number has more than three digits, or it's negative")
}
                    

val v = "This is an is example"

when(v){
  is String -> println("it's string type")
  is Int -> println("v is type of Integer and its value is $v")
}