package?com.zzk;
import?java.awt.Graphics;
import?javax.swing.Jframe;
import?javax.swing.JPanel;
public?class?DrawArcframe?extends?Jframe?{
????DrawArcPanel?arcPanel?=?new?DrawArcPanel（）;?//?創(chuàng)建面板類的實(shí)例
????public?static?void?main（String?args[]）?{?//?主方法
????????DrawArcframe?frame?=?new?DrawArcframe（）;?//?創(chuàng)建窗體類的實(shí)例
????????frame.setVisible（true）;?//?顯示窗體
????}
????public?DrawArcframe（）?{
????????super（）;?//?調(diào)用超類的構(gòu)造方法
????????settitle（“繪制圓弧“）;?//?窗體標(biāo)題
????????setBounds（100?100?269?184）;?//?窗體的顯示位置和大小
????????setDefaultCloseOperation（Jframe.EXIT_ON_CLOSE）;?//?窗體關(guān)閉方式
????????add（arcPanel）;?//?將面板類的實(shí)例添加到窗體容器中
????}
????class?DrawArcPanel?extends?JPanel?{?//?創(chuàng)建內(nèi)部面板類
????????public?void?paint（Graphics?g）?{?//?重寫paint（）方法
????????????g.drawArc（20?20?80?80?0?120）;????//?繪制圓弧
????????????g.drawArc（20?40?80?80?0?-120）;???//?繪制圓弧
????????????g.drawArc（150?20?80?80?180?-120）;//?繪制圓弧
????????????g.drawArc（150?40?80?80?180?120）;?//?繪制圓弧
????????}
????}
}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????文件?????????301??2010-07-27?13:01??.classpath
?????文件?????????379??2010-12-31?13:27??.project
?????文件?????????629??2010-07-27?13:01??.settings\org.eclipse.jdt.core.prefs
?????文件?????????725??2011-01-25?14:29??bin\com\zzk\DrawArcframe$DrawArcPanel.class
?????文件?????????931??2011-01-25?14:29??bin\com\zzk\DrawArcframe.class
?????文件????????1098??2010-07-29?14:16??src\com\zzk\DrawArcframe.java