معرفی زبان برنامه نویسی kotlin قسمت سوم (حلقه ها و شرط ها و رشته ها)

بازه ها Ranges

val r1 = 1..5

val r2 = 5 downTo 1

val r3 = 5 downTo 1 step 2

عبارت شرطی

var age = 20
val isEligibleToVote = if(age > 18) "Yes" else "No"

val age = 17
 
val typeOfPerson = when(age){
     0 -> "New born"
     in 1..12 -> "Child"
     in 13..19 -> "Teenager"
     else -> "Adult"
}

حلقه ها

val names = arrayOf("Jake", "Jill", "Ashley", "Bill")
 
for (name in names) {
    println(name)
}

for (i in 0..9) {
    println(i)
}

for(int i=0;i<10;i++)

val names = arrayOf("Jake", "Jill", "Ashley", "Bill")
var i = names.size()
 
while(i>0) {
    println(names[--i])
}

قالب های رشته ای

val name = "Bob"
println("My name is ${name}") // Prints "My name is Bob"
 
val a = 10
val b = 20
println("The sum is ${a+b}") // Prints "The sum is 30"