//The association relationship is the oject 1 can declare an object of the object 2 to use the object 2's function for the sake of removing the duplication code
//for example, this class command need the IHaveInventory container to provide and support for its function
//Find the item inside the cointainer just found in the above
private string LookAtIn(string thingId, IHaveInventory container)
{
//This is to check even when the container is valid, is there that item inside
if (container.LocateSth(thingId) != null)
{
return(container.LocateSth(thingId).FullDescription);
}
else
{
return("There is no" + thingId);
}
}
