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fun printName(firstName: String, middleName: String = "N/A", lastName: String) {
    println("first name: $firstName - middle name: $middleName - last name: $lastName")
}

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printName("Chike", "Mgbemena") // won't compile

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printName("Chike", lastName = "Mgbemena") // will now compile

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@JvmOverloads
fun calCircumference(radius: Double, pi: Double = Math.PI): Double = (2 * pi) * radius

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@JvmOverloads
fun calCircumference(radius: Double, pi: Double = Math.PI): Double = (2 * pi) * radius

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// Java
double calCircumference(double radius, double pi);
double calCircumference(double radius);

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fun printInts(vararg ints: Int): Unit {
    for (n in ints) {
        print("$n\t")
    }
}
printInts(1, 2, 3, 4, 5, 6) // will print 1    2    3   4   5   6

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fun printNumbers(myDouble: Double, myFloat: Float, vararg ints: Int) {
    println(myDouble)
    println(myFloat)
    for (n in ints) {
        print("$n\t")
    }
}
printNumbers(1.34, 4.4F, 2, 3, 4, 5, 6) // will compile

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fun printNumbers(myDouble: Double, vararg ints: Int, myFloat: Float) {
    println(myDouble)
    println(myFloat)
    for (n in ints) {
        print("$n\t")
    }
}
printNumbers(1.34, 2, 3, 4, 5, 6, myFloat = 4.4F) // will compile
printNumbers(1.34, ints = 2, 3, 4, 5, 6, myFloat = 4.4F) // will not compile
printNumbers(myDouble = 1.34, ints = 2, 3, 4, 5, 6, myFloat = 4.4F) // will also not compile

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val intsArray: IntArray = intArrayOf(1, 3, 4, 5)
printNumbers(1.34, intsArray, myFloat = 4.4F) // won't compile