Kotlin program of using throw keyword

fun main(args: Array<String>) {    
    ThrowDemo("Hello, world!")
    ThrowDemo("Hello!")
}

// ThrowDemo() function to check 
// whether string's lenght is 
// equal to or greater than 8
fun ThrowDemo(str: String) {
    // Comparing the lenght of the string
    if (str.length < 8)
        throw ArithmeticException("The string is too short.")
    else
        println("The string lenght is >=8.")
}

Output:

The string lenght is >=8.
Exception in thread "main" java.lang.ArithmeticException: The string is too short.
 at FileKt.ThrowDemo (File.kt:13) 
 at FileKt.main (File.kt:4) 
 at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (:-2)