To Lecture Notes

IT 372 -- May 6, 2026

Review Exercises

1. Write this function as a lambda function and test it.
   

   fun add(n : Int, m : Int) : Int {
       return n + m;
   }
   

   Answer:
   

   fun main() {
       var add : (Int, Int) -> Int = { n, m -> n + n }
       println(add(5, 7))
   }
   

2. What does it mean in a Kotlin lambda function?
   Answer: it is used to represent the parameter of a one-parameter function. The lambda function
   

   var makeGreeting : (String) -> String = 
       { name -> "Hello, $name, how are you? }
   

   can be simplified to

   var makeGreeting : (String) -> String = 
       { "Hello, $it, how are you?" }
   

Introduction to Jetpack Compose

• The Temperature6 example is posted as the TempConv6 Example in the following Jetpack Compose Examples document.

JetPack Compose Examples

• In class today (Wednesday, May 6), we looked at the Jetpack Compose examples 1, 2, 3, 4, and 6.
  

Composable Parameters

• Some important parameters for the composables that we will be using.