GUI辅助类 Dimension Classes in the java. awt Layout Manager heavyweight Font FontMetrics O Color 匚 Panel[Apk{ Japplet Graphi I Component K Container Window K Frame Jframe Dialog JDialog 辅助类不是 Component类的 opponet ar Swing Components in the javax. swing package 子类,它们用来描述GU组 件的属性,如图形环境、颜 色、字体以及大小 LightweightGUI 辅助类 Dimension Font FontMetrics Component Graphics Object Color Container Panel Applet Frame Dialog Window JComponent JApplet JFrame JDialog Swing Components in the javax.swing package Lightweight Heavyweight Classes in the java.awt package 1 LayoutManager * 辅助类不是 JPanel Component类的 子类，它们用来描述GUI组 件的属性，如图形环境、颜 色、字体以及大小