了解 java. awt包中的类体系结构 Obiect Component Menu Component Button Checkbox Con ntainer choice Canvas I Label TextComponent ScrollPane panel window TextAreal TextField Applet fra amell dialo Designed by Chiyong C20058 Designed by Chiyong,©2005 了解java.awt 包中的类体系结构 Component Button Checkbox Container Choice Canvas TextComponent Label Panel Window Applet Frame Dialog ScrollPane TextArea TextField MenuComponent Object