public static FoodNameComparer Instance()
{
lock (locker)
{
if (_instance == null)
{
_instance = new FoodNameComparer();
}
return(_instance);
}
}
static void Main(string[] args)
{
Food[] list =
{
new Food("Orange", FoodGroup.Fruit),
new Food("banana", FoodGroup.Fruit),
new Food("pear", FoodGroup.Fruit),
new Food("apple", FoodGroup.Fruit),
};
Array.Sort(list, FoodNameComparer.Instance());
foreach (var item in list)
{
Console.WriteLine(item);
}
}
