import?java.awt.*;
import?java.awt.event.*;
import?javax.swing.*;
import?javax.swing.event.*;

public?class?PainterDemo?extends?Jframe{
	
	JToggleButton[]?button=new?JToggleButton[3];??//按鈕組
	PainterPanel?painter=new?PainterPanel（）;?//繪圖面板
	
	public?PainterDemo（）{
		super（“Java畫圖程序“）;?//調(diào)用父類構(gòu)造函數(shù)
		
		String[]?buttonName={“直線““橢圓““矩形“};?//按鈕文字
		DrawShapeListener?buttonListener=new?DrawShapeListener（）;?//按鈕事件

		JToolBar?toolBar=new?JToolBar（）;?//實(shí)例化工具欄
		ButtonGroup?buttonGroup=new?ButtonGroup（）;?//實(shí)例化按鈕組
		for?（int?i=0;i			button[i]=new?JToggleButton（buttonName[i]）;?//實(shí)例化按鈕
			button[i].addActionListener（buttonListener）;?//增加按鈕事件處理
			buttonGroup.add（button[i]）;?//增加按鈕到按鈕組
			toolBar.add（button[i]）;	?//增加按鈕到工具欄
		}

		Container?container=get

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????文件??????180054??2004-05-10?22:31??65-1.bmp
?????文件?????????769??2004-07-21?18:39??PainterDemo$DrawShapeListener.class
?????文件????????1424??2004-07-21?18:39??PainterDemo.class
?????文件????????1540??2004-05-10?22:30??PainterDemo.java
?????文件????????1582??2004-07-21?18:39??PainterPanel.class
?????文件????????1486??2004-05-10?22:30??PainterPanel.java