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

public?class?GraphPanel?extends?JPanel?{
???int?width=10;??//橢圓高度值
???int?hight=10;??//橢圓寬度值

???public?void?paintComponent（Graphics?g）?{
??????super.paintComponent（g）;??//調用父類方法
??????g.fillOval（55widthhight）;??//繪制橢圓
???}

???public?void?setW（int?length）{?//設置寬度
??????width=（length>=0?length:10?）;?
??????repaint（）;?//重繪組件
???}
???
???public?void?setH（int?length）{?//設置高度
??????hight=（length>=0?length:10?）;??
??????repaint（）;??//重繪組件
???}???
}??

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件??????132054??2004-07-21?19:05??25-1.bmp
?????文件?????????615??2004-07-21?18:52??GraphPanel.class
?????文件?????????551??2004-05-07?18:18??GraphPanel.java
?????文件?????????857??2004-07-21?18:52??JSliderDemo$ValueChangeListener.class
?????文件????????1429??2004-07-21?18:52??JSliderDemo.class
?????文件????????1857??2004-05-09?17:38??JSliderDemo.java