1. A method for dynamically binding a class of objects for a computer program written in a first interpreted bytecode program language to functions contained in a shared library written in a second program language, during the operation of a computer, comprising the steps of: defining a mechanism in the first program language which associates a reference to a class of objects and the shared library; loading the class of objects into memory of the computer during the execution of a program: detecting the association in said mechanism between the shared library and the class of objects during the loading of the class of objects into memory; and loading an implementation of a method from the shared library into the computer's memory during the loading of the class of objects.