Kotlin Control Flow

val max = if (a > b) a else b # if as expression
val result = if (a > b) {
    println("a is greater")
    a # last expression is returned
} else {
    println("b is greater")
    b
}

when (x) { # switch replacement
    1 -> println("One")
    2, 3 -> println("Two or Three") # multiple values
    in 4..10 -> println("Range") # range check
    else -> println("Other") # default case
}

for (i in 1..5) { # range 1 to 5
    println(i)
}
for (i in 1 until 5) { } # 1 to 4
for (i in 5 downTo 1) { } # reverse
for (i in 1..10 step 2) { } # step by 2

while (condition) { # repeat while true
    // code
}
do { # execute at least once
    // code
} while (condition)

break # exit loop
continue # skip to next iteration
return # exit function