/**
?*?title:????????applet動態(tài)顯示文字
?*?Description:??applet動態(tài)顯示文字編程演示，用于北京師范大學計算機系Java課程教學示范。
?*?Copyright:????Copyright?（c）?2002
?*?Company:??????北京師范大學計算機系
?*?@author?孫一林
?*?@version?1.0
?*/

import?java.awt.*;
import?java.awt.Color;
import?java.awt.Font;
import?java.awt.Graphics;

public?class?RollingMessage?extends?java.applet.applet?implements?Runnable?{
	Thread?runThread;
	String?s?=?“你好，歡迎瀏覽!“;
	int?s_length?=?s.length（）;
	int?x_character?=?0;
	Font?wordFont=new?Font（“宋體“??Font.BOLD??50）;

	public?void?start（）?{
		if（runThread==null）{
			runThread?=?new?Thread（this）;
			runThread.start（）;
		}
	}

	public?void?stop（）?{
		if（runThread!=null）{
			runThread.stop（）;
			runThread=null;
		}
	}

	public?void?run（）?{
		while（true）?{
			if?（x_character++>s_length）
				x_character?=?0;
			repaint?（）;
			try?{
				Thread.sleep（300）;
			}?catch?（InterruptedException?e）?{}
		}
	}

	public?void?paint?（Graphics?g）?{
		g.setFont?（wordFont）;
		g.setColor?（Color.red）;
		g.drawString?（s.substring（0x_character）?8?50）;
	}

????????	????public?boolean?handleEvent（Event?e）?{		//?事件處理
			switch?（e.id）?{
			??case?Event.WINDOW_DESTROY:
			????System.exit（0）;
			????return?true;
			??default:
			????return?false;
			}
????	}

		public?static?void?main（String?args[]）?{	//?Application程序入口
		????frame?f?=?new?frame（“動態(tài)顯示文字“）;		//?創(chuàng)建Application程序框架
		????RollingMessage?drawTest?=?new?RollingMessage（）;
		????drawTest.init（）;
		????drawTest.start（）;
		????f.add（“Center“?drawTest）;
		????f.resize（400?100）;
		????f.show（）;
	????}

}

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

?????目錄??????????0??2005-03-06?17:09??RollingMessage

????.......???????185??2002-09-04?21:03??RollingMessage\appletRolling.html

????.......????????28??2001-05-17?00:55??RollingMessage\RollingMessage.bat

????.......??????2422??2002-09-04?21:18??RollingMessage\RollingMessage.class

????.......???????644??2002-09-04?21:09??RollingMessage\RollingMessage.html

????.......?????12703??2002-09-04?21:18??RollingMessage\RollingMessage.jar

????.......??????1615??2002-09-04?21:18??RollingMessage\RollingMessage.java

????.......??????1621??2002-09-04?21:10??RollingMessage\RollingMessage.jpr

-----------?---------??----------?-----??----

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