Kotlin Methods Example

1. Simple Function. neither accepts nor return any variable or value
   

   fun helloWorld(){
     println("Hello World")
   }

2.  Function that takes a parameter but returns no value
   

   fun stringFunction (text : String){
    for (c in text){
      println("$c ") //KOTLIN -> K O T L I N
    }
   }
   
   fun intFunction(int : Integer){
     println(int)
   }

3. Functions that returns a value but takes no parameter
   

   fun getAuthorsName() : String {
    return "Olorunleke Opeyemi"
   }
   
   fun getTodaysDate() : Date {
     return Date()
   }

4. Functions that accept a value and returns a value
   

   class Example{
    fun main(args: Array<String>) {
      println(evaluateInteger(21, 23))
    }
     fun evaluateInteger (a : Int, b: Int) : String {
      return if (a>b) {
              "$a is greater than $b"
           } else if (a<b){
              "$b is greater than $a"
           } else {"they are equal"}
       }
   }