Kotlin Program:

Example:

import java.util.Scanner
fun main(args: Array<String>) {

  val userInput = Scanner(System.`in`)
  print("Enter your last number : ")
  var num:Int = userInput.nextInt()

  print("Your even numbers are : ")
  for (i in 1..num-1)
    if(i%2==0)print("$i ")
}

Output:

  Enter your last number : 7
  Your even numbers are : 2 4 6

You should know first :

Even numbers: Numbers perfectly divisible by 2

(number % 2 == 0)

So, we are using a for loop till the last number entered and check every value for even

for(i in 1..LastValue) {
  //Check every 'i' for even, if even then print
}