public InstantMessage(
	string sender,
	string recipient,
	string content,
	string contentType
)

Public Sub New ( 
	sender As String,
	recipient As String,
	content As String,
	contentType As String
)

public:
InstantMessage(
	String^ sender, 
	String^ recipient, 
	String^ content, 
	String^ contentType
)

new : 
        sender : string * 
        recipient : string * 
        content : string * 
        contentType : string -> InstantMessage