Multiple function parameters

Like in Java and most other languages, we can define multiple function parameters and then pass the corresponding multiple arguments to a function. 

Let's update our helloFunctions example to take both a greeting and a name parameter. To add an additional parameter, we can simply add a comma after the previous parameter and then define the new parameter name and type:

fun helloFunctions(greeting: String, name: String) {
    println("$greeting $name")
}

In this example, we've added a name parameter of the String type. Now, to call helloFunctions, we must pass both the greeting and the name parameters as in the following example:

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

With support for multiple function parameters, it's often likely that we will have multiple parameters of a common type. For some of these situations, there is a special syntax Kotlin provides to make working with these functions easier and more flexible.