Bosun gave a nice definition. Here's an example: You've probably seen: int x; This creates the integer variable 'x'. But you could also use an Integer wrapper, so that 'x' is treated as an object: Integer x = new Integer(); From the Sun documentation: "The Integer class wraps a value of the primitive type int in an object. An object of type Integer contains a single field whose type is int. " There's a wrapper class for each primitive type.
Susan [This message has been edited by Susan Delph (edited May 06, 2001).]