There are a couple of ways to access a package-level function. One way to do this is by using a package name with each function. This method has already been used in the previous example:

Util.hello()

The second way to access a package-level function is to import each function explicitly by using the import keyword:

import Util.hello
fun main(args: Array<String>) {
   hello()
   println("Power Function")
   println(Util.myPow(5.0,3.0))
} 

Notice that by adding import Util.hello, Kotlin allows us to use the hello function without using a package name with it. The third and most common way to import a package is with the wildcard:

import Util.*
fun main(args: Array<String>) {
    hello()
    println("Power Function")
    println(myPow(5.0,3.0))
    println("Random number generator")
    
    var range = 5..50
    for (i in 1..5) {
         println(myRandom(range))
     }
    
    println("value of PI is ${PI}" )
    println("Area of circle " + areaOfCircle(4.0))
}

This is the most convenient method. By using this approach, functions can be accessed by using a package name.