import?java.*;
import?java.math.*;
public?class?chengxu
{
	public?static?void?main（String?args[]）
	{
	??double??x=0;
		double?P[]=new?double[4];
		for（int?i=0?;i<=3;i++）
		{
			?P[i]=0.25;
????????
			System.out.println（P[i]）;
?????
		??	x=x+（-1）*P[i]*（Math.log（P[i]））/（Math.log（2））;
		??}
		??System.out.println（x）;
???}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????5410816??2004-10-22?22:09??JAVA網絡抓包程序及畢業論文\netcap\bao.mdb

?????文件????????546??2004-10-18?22:22??JAVA網絡抓包程序及畢業論文\netcap\chengxu.class

?????文件????????341??2004-10-10?18:38??JAVA網絡抓包程序及畢業論文\netcap\chengxu.java

?????文件????????303??2004-10-19?21:36??JAVA網絡抓包程序及畢業論文\netcap\cm.class

?????文件???????2762??2004-10-14?17:33??JAVA網絡抓包程序及畢業論文\netcap\cm.java

?????文件????????308??2004-10-09?21:21??JAVA網絡抓包程序及畢業論文\netcap\Example23_4.class

?????文件???????6867??2004-10-09?20:06??JAVA網絡抓包程序及畢業論文\netcap\Mainframe.java

?????文件????????538??2004-10-18?23:18??JAVA網絡抓包程序及畢業論文\netcap\netcap\Mainframe$1.class

?????文件???????4937??2004-10-18?23:18??JAVA網絡抓包程序及畢業論文\netcap\netcap\Mainframe.class

?????文件????????505??2004-10-18?23:18??JAVA網絡抓包程序及畢業論文\netcap\netcap\Mainframe_button1_actionAdapter.class

?????文件????????471??2004-10-18?23:18??JAVA網絡抓包程序及畢業論文\netcap\netcap\Mainframe_button1_mouseAdapter.class

?????文件????????471??2004-10-18?23:18??JAVA網絡抓包程序及畢業論文\netcap\netcap\Mainframe_button2_mouseAdapter.class

?????文件????????509??2004-10-18?23:18??JAVA網絡抓包程序及畢業論文\netcap\netcap\Mainframe_button_ok_actionAdapter.class

?????文件????????593??2004-10-18?23:18??JAVA網絡抓包程序及畢業論文\netcap\netcap\Mainframe_jComboBox_card_mouseAdapter.class

?????文件????????336??2004-10-18?23:18??JAVA網絡抓包程序及畢業論文\netcap\netcap\Mainframe_jComboBox_card_mouseMotionAdapter.class

?????文件????????509??2004-10-18?23:18??JAVA網絡抓包程序及畢業論文\netcap\netcap\Mainframe_menuItem1_actionAdapter.class

?????文件????????319??2004-10-18?23:18??JAVA網絡抓包程序及畢業論文\netcap\netcap\Mainframe_textArea1_mouseAdapter.class

?????文件???????4341??2004-10-18?22:22??JAVA網絡抓包程序及畢業論文\netcap\netcap\Tcpdump.class

?????文件???????2047??2004-10-18?22:22??JAVA網絡抓包程序及畢業論文\netcap\netcap\threadreadpacket.class

?????文件???????2788??2004-09-23?13:19??JAVA網絡抓包程序及畢業論文\netcap\netcap1.bk1

?????文件???????2788??2004-09-23?12:34??JAVA網絡抓包程序及畢業論文\netcap\netcap1.bk2

?????文件???????1358??2004-09-22?12:18??JAVA網絡抓包程序及畢業論文\netcap\netcap1.bk3

?????文件???????3532??2004-09-29?00:24??JAVA網絡抓包程序及畢業論文\netcap\netcap1.jcd

?????文件???????3532??2004-09-29?00:16??JAVA網絡抓包程序及畢業論文\netcap\netcap1.jcd.bak

?????文件????????786??2004-10-22?13:07??JAVA網絡抓包程序及畢業論文\netcap\netcap1.jcp

?????文件????????530??2004-10-10?17:41??JAVA網絡抓包程序及畢業論文\netcap\netcap1.jcw

?????文件?????607345??2004-09-28?22:25??JAVA網絡抓包程序及畢業論文\netcap\packet.cap

?????文件????????809??2004-07-02?14:32??JAVA網絡抓包程序及畢業論文\netcap\run.bat

?????文件????????246??2004-10-18?22:22??JAVA網絡抓包程序及畢業論文\netcap\src_netcap1.txt

?????文件???????3574??2004-10-12?22:31??JAVA網絡抓包程序及畢業論文\netcap\Tcpdump.java

............此處省略9個文件信息