public static class Arrays {

 public static T[] InitializeWithDefaultInstances < T > (int length) where T: new() {
  T[] array = new T[length];
  for (int i = 0; i < length; i++) {
   array[i] = new T();
  }
  return array;
 }

 public static void DeleteArray < T > (T[] array) where T: System.IDisposable {
  foreach(T element in array) {
   if (element != null)
    element.Dispose();
  }
 }
}