SealClass

SealedClass.kt

//All these 4 classes MUST be in the same file
sealed class Product
data class AlphaProduct (var name: String, var description:String) : Product()
data class BetaProduct (var name: String, var description:String) : Product()
data class GameProduct (var name: String, var description:String) : Product()



var one = AlphaProduct("alpha", "one")
var two = BetaProduct("beta", "two")
var three = GameProduct("game", "three")

var listOfProducts = mutableListOf<Product>()

listOfProducts.add(one)
listOfProducts.add(two)
listOfProducts.add(three)

listOfProducts.forEach { product ->
    if(product is AlphaProduct){
        Log.i("test", "${product.name}")
    }
}