Question

I have a static list:

public static List<IMachines>mList =new List<IMachines>();

The list intakes two different types of objects(machines) in it:

IMachines machine = new AC();
IMachines machine = new Generator();

If after adding items to the list, I want to search for a particular machine by its name property then after using the foreach loop for traversal if that item is found in list … how am I supposed to know if the item is of AC type or Generator type?

Answer 1

Use the “is” operator.

List<IMachines> list = new List<IMachines>();
list.Add(new AC());
list.Add(new Generator());
foreach(IMachines o in list)
{
  if (o is Ingredient)
  {
    //do sth
  }
  else if (o is Drink)
  {
    //do sth
  }
}