How to create a class builder????????????

Hi to all,

here i want to create a class builder and that will be used by

BW people?

after selecting the options public class in se24 transactions what we have to do.

what is the functionality of

properties

interfaces

friends

methods

attributes

events

types

alias

Please give me a step by step process to create class builder and explain the above tabs in that..

thanks and regards,

swami