import?java.awt.Font;
import?java.text.SimpleDateFormat;
import?java.util.*;
import?javax.swing.*;


public?class?clock?extends?JPanel?{
	private?JLabel?label?=?new?JLabel（““）;

	public?clock（）?{
		label.setFont（new?Font（““?Font.PLAIN?24））;
		this.add（label）;

		class?ClockThread?extends?Thread?{
			Date?date?=?new?Date（）;

			Calendar?calendar?=?new?GregorianCalendar（）;

			public?ClockThread（）?{
				calendar.setTime（date）;
			}

			public?void?run（）?{
				while?（true）?{
					SimpleDateFormat?dateFormat?=?new?SimpleDateFormat（
							“yyyy-MM-dd?HH:mm:ss“）;
					calendar.set（Calendar.SECOND
							calendar.get（Calendar.SECOND）?+?1）;
					label.setText（dateFormat.format（calendar.getTime（）））;
					try?{
						Thread.sleep（1000）;
					}?catch?（InterruptedException?e）?{
						e.printStackTrace（）;
					}
				}
			}
		}
		new?ClockThread（）.start（）;
	}
}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件????????232??2008-11-01?23:58??SupermaketSystem\.classpath

?????文件????????392??2015-05-30?17:52??SupermaketSystem\.project

?????文件???????1433??2015-05-30?17:54??SupermaketSystem\bin\clock$1ClockThread.class

?????文件????????788??2015-05-30?17:54??SupermaketSystem\bin\clock.class

?????文件???????1967??2015-05-30?17:54??SupermaketSystem\bin\Data.class

?????文件???????5169??2015-05-30?17:54??SupermaketSystem\bin\DataManagement.class

?????文件???????2054??2015-05-30?17:54??SupermaketSystem\bin\draw$DrawJDialog.class

?????文件???????1014??2015-05-30?17:54??SupermaketSystem\bin\draw$DrawPanel.class

?????文件????????747??2015-05-30?17:54??SupermaketSystem\bin\draw.class

?????文件???????1741??2015-05-30?17:54??SupermaketSystem\bin\judge.class

?????文件????????614??2015-05-30?17:54??SupermaketSystem\bin\land.class

?????文件???????3890??2015-05-30?17:54??SupermaketSystem\bin\landframe.class

?????文件????????609??2015-05-30?17:54??SupermaketSystem\bin\mainview$1.class

?????文件??????12541??2015-05-30?17:54??SupermaketSystem\bin\mainview.class

?????文件???????2478??2015-05-30?17:54??SupermaketSystem\bin\sellcount.class

?????文件?????????36??2015-05-30?17:39??SupermaketSystem\denglu.txt

?????文件???????2229??2015-05-30?17:55??SupermaketSystem\record.txt

?????文件????????902??2007-08-27?23:13??SupermaketSystem\src\clock.java

?????文件???????1151??2007-08-24?21:36??SupermaketSystem\src\Data.java

?????文件???????4788??2015-05-30?17:48??SupermaketSystem\src\DataManagement.java

?????文件???????1812??2007-08-27?23:03??SupermaketSystem\src\draw.java

?????文件???????1051??2007-08-24?22:22??SupermaketSystem\src\judge.java

?????文件???????2722??2007-09-18?22:01??SupermaketSystem\src\land.java

?????文件??????14325??2007-09-19?13:43??SupermaketSystem\src\mainview.java

?????文件???????1874??2007-09-11?23:24??SupermaketSystem\src\sellcount.java

?????文件?????????93??2007-09-18?22:04??SupermaketSystem\supermarket.txt

?????文件?????????28??2007-08-21?20:53??SupermaketSystem\vip.txt

?????目錄??????????0??2015-05-30?17:54??SupermaketSystem\bin

?????目錄??????????0??2008-11-04?13:07??SupermaketSystem\src

?????目錄??????????0??2008-11-02?00:09??SupermaketSystem

............此處省略3個(gè)文件信息