First, create a parameterized Fridge class that will only accept types implementing the Eatable interface :

class Fridge<T: Eatable)>
{
   public function new()
   {}
}

In this class, we will create two methods: an add and a remove method and we will use an Array to store the list of what is inside our Fridge:

class Fridge<T: Eatable)>
{
   private var items : Array<T>;public function new()
   {
      items = new Array<T>(); //Initialize the Array
   }
   
   public function add(item : T)
   {
      array.push(item);
   }
   
   public function remove(item : T)
   {
      array.remove(item);
   }
}

For sure, in this state, our fridge is basically just a wrapper around the array class, but now we will do something interesting with it.

We will define the Eatable interface, so that we can store the date before which the eatable should be eaten, as follows:

interface...