package?com.zzk;

import?java.awt.Graphics;
import?java.awt.Graphics2D;
import?java.awt.geom.QuadCurve2D;

import?javax.swing.Jframe;
import?javax.swing.JPanel;

public?class?DrawQuadCurveframe?extends?Jframe?{
????DrawQuadCurvePanel?quadCurvePanel?=?new?DrawQuadCurvePanel（）;?//?創建面板類的實例
????
????public?static?void?main（String?args[]）?{?//?主方法
????????DrawQuadCurveframe?frame?=?new?DrawQuadCurveframe（）;?//?創建窗體類的實例
????????frame.setVisible（true）;?//?顯示窗體
????}
????
????public?DrawQuadCurveframe（）?{
????????super（）;?//?調用超類的構造方法
????????settitle（“繪制二次曲線“）;?//?窗體標題
????????setBounds（100?100?269?175）;?//?窗體的顯示位置和大小
????????setDefaultCloseOperation（Jframe.EXIT_ON_CLOSE）;?//?窗體關閉方式
????????add（quadCurvePanel）;?//?將面板類的實例添加到窗體容器中
????}
????
????class?DrawQuadCurvePanel?extends?JPanel?{?//?創建內部面板類
????????public?void?paint（Graphics?g）?{?//?重寫paint（）方法
????????????Graphics2D?g2=（Graphics2D）g;//?獲得Graphics2D對象
????????????//?創建二次曲線，其中點120100是控制點，點6020是起始點坐標，點180

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件?????????301??2010-07-27?14:43??.classpath
?????文件?????????379??2010-12-31?13:28??.project
?????文件?????????629??2010-07-27?14:43??.settings\org.eclipse.jdt.core.prefs
?????文件????????1079??2011-01-25?14:29??bin\com\zzk\DrawQuadCurveframe$DrawQuadCurvePanel.class
?????文件?????????997??2011-01-25?14:29??bin\com\zzk\DrawQuadCurveframe.class
?????文件????????1525??2010-07-29?14:18??src\com\zzk\DrawQuadCurveframe.java