Kotlin Program: Check number divisibility by 7

Kotlin Control Flow: Exercise-2 with Solution

Write a Kotlin program to check if a given number is divisible by 7.

Sample Solution:

Kotlin Code:

fun main() 
  {
      val number = 14
    //val number = 17
    println("Number is $number")
        if (number % 7 == 0) 
         {
            println("The number is divisible by 7.")
        } 
        else 
        {
            println("The number is not divisible by 7.")
        }
  }

Sample Output:

Number is 14
The number is divisible by 7. 

 
Number is 17
The number is not divisible by 7

Explanation:

In the above exercise,

• The user is prompted to input a number using println() and readLine().
• The input is read as a String and converted to an Int using toIntOrNull().
• If the conversion is successful and the number is not null, the program checks if it is divisible by 7 using the modulo operator %:
• If the number modulo 7 equals 0, it means the number is divisible by 7, and the corresponding message is printed.
• If the number modulo 7 does not equal 0, it means the number is not divisible by 7, and the corresponding message is printed.
• If the input is invalid (null), an error message is displayed.

Kotlin Editor:

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