Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Õë¶Ôjava»­ÃæÉÁ˸


     ÈçÌ⣡½â¾öµÄ·½·¨ÊÇÔö¼ÓÒ»¸öÐé±³¾°¡£Ö®ºó°ÑÐé±³¾°Ôö¼Óµ½Ô­À´µÄFrameÉÏ¡£ÓÉÓÚrepaint()µ½paint()ÖмäÉæ¼°µ½update(),ËùÒÔ½â¾öÎÊÌâµÄ
¹Ø¼üÊÇÔÚÖØдupdate(),ÔÚÕâ¸ö·½·¨ÖÐʵÏÖÐé±³¾°µÄÌí¼Ó~~
   @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);
}


Ïà¹ØÎĵµ£º

sql 2005 ´æ´¢¹ý³Ì·ÖÒ³ java ´úÂë

 create PROCEDURE pagelist
@tablename nvarchar(50),
@fieldname nvarchar(50)='*',         
@pagesize int output,--ÿҳÏÔʾ¼Ç¼ÌõÊý
@currentpage int output,--µÚ¼¸Ò³
@orderid nvarchar(50),--Ö÷¼üÅÅÐò
@sort int,--ÅÅÐò·½Ê½£¬1±íʾÉýÐò£¬0±íʾ½µÐòÅÅÁÐ ......

Java ÖØÔØÓëÖØд

 ÔÚJAVAÖУº
  1. º¯ÊýÖØÔØÊÇÒ»¸öÀàÖÐÉùÃ÷Á˶à¸öͬÃûµÄ·½·¨£¬µ«Óв»Í¬µÄ²ÎÊý¸öÊýºÍ²ÎÊýÀàÐÍ¡£
  2. º¯ÊýÖع¹ÊÇÖ¸ÔÚ×ÓÀàÖÐÉùÃ÷Ó븸ÀàͬÃûµÄ·½·¨£¬´Ó¶ø¸²¸ÇÁ˸¸ÀàµÄ·½·¨¡£Öع¹½â¾öÁË×ÓÀàÓ븸ÀàµÄ²îÒìÎÊÌâ¡£
Àý×ÓÈçÏ£º
//ÖØÔØ
class A {
public d (){};
public d (q){};
public d (q,w){};
}
//ÖØд ......

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 ......

java Ï̵߳ÄÉè¼Æģʽ

 ¾Í¶àÏß³ÌÀ´Ëµ£¬ÎÒÃÇ¿ªÊ¼ÉèÏëÖ»ÓÐÁ½¸öỊ̈߳¨>2ʱÊDz»ÊÇËãÊýѧ¹éÄÉ·¨£¿£©ÄÇôÈç¹ûÁ½¸ö¶ÀÁ¢µÄÏ̻߳ᷢÉúʲôÄØ£¿
1¡£µ±Ò»¸öÏ߳̽øÈëmoniter£¨Ò²¾ÍÊÇ˵վÓÃÒ»¸öobject£©£¬ÁíÒ»¸öÏß³ÌÖ»Óеȴý»ò·µ»Ø£¬¶øÎÒÃÇ°Ñ·µ»Ø¾Í³ÆΪһÖÖģʽ£¬ÕâÖÖģʽµÄÓ¢ÎÄÊÇBalking¡£
2¡£ÕâÁ½¸öÏ߳̿ÉÒÔÊÇÓÐÐòµÄÖ´ÐУ¬¶ø²»ÊÇÈÃOSÀ´µ÷¶È£¬ÕâʱΠ......

JavaÖеÄequals()ºÍhashCode()·½·¨

    ÔÚJavaÓïÑÔÖУ¬Ò»°ã²»ÐèÒª×Ô¶¨Òåequals()ºÍhashCode()ÕâÁ½¸ö·½·¨£¬µ±ÐèÒª¶Ô¶ÔÏóµÄÄÚÈݽøÐбȽϵÄʱºò£¬²ÅÐèÒªÕâÑùÁ½¸ö·½·¨¡£ÀýÈ磬ÐèÒª°Ñ¶ÔÏó·ÅÈëHashSet»òÕ߰ѶÔÏó×÷Ϊkey·ÅÈëHashMap¡¢ Hashtableʱ£¬Èç¹û²»Ïë°Ñ¾ßÓÐÏàͬÄÚÈݵÄÁ½¸ö¶ÔÏó×÷ΪÁ½¸ö¶ÔÏóÀ´¿´´ý£¬¾ÍÐèÒªÖض¨ÒåÕâÁ½¸ö·½·¨¡£ÕâÁ½¸ö·½·¨µÄʹÓÃÊÇ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ