Õë¶Ôjava»ÃæÉÁ˸
ÈçÌ⣡½â¾öµÄ·½·¨ÊÇÔö¼ÓÒ»¸öÐé±³¾°¡£Ö®ºó°ÑÐé±³¾°Ôö¼Óµ½ÔÀ´µÄFrameÉÏ¡£ÓÉÓÚrepaint()µ½paint()ÖмäÉæ¼°µ½update(),ËùÒÔ½â¾öÎÊÌâµÄ
¹Ø¼üÊÇÔÚÖØÐ´update(),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
Javaѧϰ´ÓÈëÃŵ½¾«Í¨
Ò»¡¢ JDK (Java Development Kit)
JDKÊÇÕû¸öJavaµÄºËÐÄ£¬°üÀ¨ÁËJavaÔËÐл·¾³£¨Java Runtime Envirnment£©£¬Ò»¶ÑJava¹¤¾ßºÍJava»ù´¡µÄÀà¿â(rt.jar)¡£²»ÂÛʲôJavaÓ¦Ó÷þÎñÆ÷ʵÖʶ¼ÊÇÄÚÖÃÁËij¸ö°æ±¾µÄJDK¡£Òò´ËÕÆÎÕJDKÊÇѧºÃJavaµÄµÚÒ»²½¡£×îÖ÷Á÷µÄJ ......
1.Ï̴߳´½¨µÄÁ½ÖÖ·½Ê½
1£©À©Õ¹ThreadÀà²¢ÖØÐ´public void run()·½·¨
ps£º
¶¨ÒåỊ̈߳º
class myThread extends Thread(){
public void run(){
System.out.println("Ju ......
ÔÚJAVAÖУº
1. º¯ÊýÖØÔØÊÇÒ»¸öÀàÖÐÉùÃ÷Á˶à¸öͬÃûµÄ·½·¨£¬µ«Óв»Í¬µÄ²ÎÊý¸öÊýºÍ²ÎÊýÀàÐÍ¡£
2. º¯ÊýÖØ¹¹ÊÇÖ¸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){};
}
//ÖØÐ´ ......
Java¸ß¼¶££JavaÏß³ÌÔËÐÐÕ»ÐÅÏ¢µÄ»ñÈ¡
·¢²¼Ê±¼ä£º2007.11.14 05:10 À´Ô´£ºÈüµÏÍø¼¼ÊõÉçÇø ×÷Õߣºbaocl
Ò»¡¢ÎÊÌâµÄÒýÈë
ÎÒÃÇÔÚJava³ÌÐòÖÐʹÓÃÈÕÖ¾¹¦ÄÜ£¨JDK Log»òÕßLog4J£©µÄʱºò£¬»á·¢ÏÖLogϵͳ»á×Ô¶¯°ïÎÒÃÇ´òÓ¡³ö·á¸»µÄÐÅÏ¢£¬¸ñʽһ°ãÈçÏ£º
[ÔËÐÐʱ¼ä] [µ ......
from: http://blog.csdn.net/WOSHISUNXIANGFU/archive/2008/08/25/2828634.aspx
1.½éÉÜ
1£©DOM£¨JAXP Crimson½âÎöÆ÷£©
DOMÊÇÓÃÓëÆ½Ì¨ºÍÓïÑÔÎ޹صķ½Ê½±íʾXMLÎĵµµÄ¹Ù·½W3C±ê×¼¡£DOMÊÇÒÔ²ã´Î½á¹¹×éÖ¯µÄ½Úµã»òÐÅϢƬ¶ÏµÄ¼¯ºÏ¡£Õâ¸ö²ã´Î½á¹¹ÔÊÐí¿ª·¢ÈËÔ±ÔÚÊ÷ÖÐѰÕÒÌØ¶¨ÐÅÏ¢¡£·ÖÎö¸Ã½á¹¹Í¨³£ÐèÒª¼ÓÔØÕû¸öÎĵµ ......