如何为Eclipse创建自定义的“新类向导”?

I would like to create a functionality ( for myself ), wherein on clicking a button ( or say firing any event or anything that can trigger my program ), a popup will be displayed which will ask the name of the Class, objects it have and few more thing. Then on pressing OK, it will create a java file with skeleton of predefined methods, inherit known interface and ... I would like to create a functionality ( for my