Kotlin Program to Check Whether a Number is Even or Odd

In the above program to Check Whether a Number is Even or Odd, a Scanner object, reader is created to read a number from the user's keyboard. The entered number is then stored in a variable num.

Now, to check whether num is even or odd, we calculate its remainder using % operator and check if it is divisible by 2 or not.

For this, we use if...else statement in Java. If num is divisible by 2, we print num is even. Else, we print num is odd.

We can also check if num is even or odd by using if...else as an expression.
Example 1:

import java.util.*
fun main(args: Array<String>) {
    val reader = Scanner(System.`in`)
    print("Enter a number: ")
    val num = reader.nextInt()
    if (num % 2 == 0)
        println("$num is even")
    else
        println("$num is odd")
}

When you run the program, the output will be:

Enter a number: 12
12 is even 

Example 2:

import java.util.*
fun main(args: Array<String>) {
    val reader = Scanner(System.`in`)
    print("Enter a number: ")
    val num = reader.nextInt()
    val evenOdd = if (num % 2 == 0) "even" else "odd"
    println("$num is $evenOdd")
}

 When you run the program, the output will be:

Enter a number: 13
13 is odd