What does a component class is defined?

The class Component is the abstract base class for the non-menu user-interface controls of AWT. A component represents an object with graphical representation. The class Container is the superclass for the containers of AWT. The container object can contain other AWT components.

There are three major components of class in Java.

AWT Components

A component class is the class associated with a page, component or mixin in your Tapestry web application . Classes for pages, components and mixins are all created in an identical way. They are pure POJOs (Plain Old Java Objects), typically with annotations and conventionally named methods.