public virtual void Insert(
	int index,
	ItemType item
)

Public Overridable Sub Insert ( 
	index As Integer,
	item As ItemType
)

public:
virtual void Insert(
	int index, 
	ItemType item
)

abstract Insert : 
        index : int * 
        item : 'ItemType -> unit 
override Insert : 
        index : int * 
        item : 'ItemType -> unit