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   @Override
public void update(Graphics g) 
{
if(offScreenImage == null)
{
offScreenImage = this.createImage(800, 600);
}
/*
*¶¨ÒåÔÚÐé±³¾°Öл­µÄ“»­±Ê”
*/

Graphics graOffScreen = offScreenImage.getGraphics();

/*
*ÖØ»­Ðé±³¾° 
*/
Color c = graOffScreen.getColor();
graOffScreen.setColor(Color.GREEN);
graOffScreen.fillRect(150, 150, 800, 600);
graOffScreen.setColor(c);


paint(graOffScreen);

g.drawImage(offScreenImage, 0, 0, null);
}


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 ArrayList ºÍVectorÊDzÉÓÃÊý×鷽ʽ´æ´¢Êý¾Ý£¬´ËÊý×éÔªËØÊý´óÓÚʵ¼Ê´æ´¢µÄÊý¾ÝÒÔ±ãÔö¼ÓºÍ²åÈëÔªËØ£¬¶¼ÔÊÐíÖ±½ÓÐòºÅË÷ÒýÔªËØ£¬µ«ÊDzåÈëÊý¾ÝÒªÉè¼Æµ½Êý×éÔªËØÒÆ¶¯µÈÄÚ´æ²Ù×÷£¬ËùÒÔË÷ÒýÊý¾Ý¿ì²åÈëÊý¾ÝÂý£¬VectorÓÉÓÚʹÓÃÁËsynchronized·½·¨£¨Ḭ̈߳²È«£©ËùÒÔÐÔÄÜÉϱÈArrayListÒª²î£¬LinkedListʹÓÃË«ÏòÁ´±íʵÏÖ´æ´¢£¬°´Ðòº ......

JAVA ×Ô¶¯Éú³ÉiBATIS xmlÎļþl

3.package com.ncs.opts.tools;
import java.util.HashMap;
import java.util.Map;
import com.ncs.opts.common.icp.dao.po.audit.IcpMainHistory;
import com.ncs.opts.common.icp.dao.po.audit.IcpModifyHistory;
import com.ncs.opts.common.icp.dao.po.audit.IcpSiteAccessHistory;
import com.ncs.opts.common.i ......

jsp,java±àÂëÔ­Àí

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StreamReader   sr=new   StreamReader(@"F:\cym\temp\1.txt");  
  sr.CurrentEncoding   //·µ»Ø±àÂë
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Effective Java¶ÁÊé±Ê¼Ç

package chape8;
/**
* µÚ8ÕÂ
* µÚ46條£º
* for-eachÑ­環優ÏÈÓÚforÑ­環
* for(Element e : c)
* {
* dosomthing(e);
* }
* Õâ¸öÊÇjava1.5ÒÔÉϵİ汾µÄforÑ­»·µÄÊ×ÏÈ¿¼ÂǵÄд·¨
* ÒÔÏÂÊÇjava1.5ÒÔǰµÄ寫·¨
*  for (Iterator it = c.iterator();it.hasNext();)
{ ......
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