Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

javaÏß³Ì

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("Just working !");
     }
}
ʵÀý»¯£º
myThread t=new myThread();
Æô¶¯£º
t.start();
2£©µ÷ÓôøRunnable±äÔªµÄThread¹¹Ô캯Êý
ps:
¶¨ÒåỊ̈߳º
class myRunnable implements Runnable{
        public void run(){
                System.out.println("Just working !");
     }
}
ʵÀý»¯£º
myRunnable r=new myRunnable();
Thread t=new Thread(r);
Æô¶¯£º
t.start();
2.ThreadÀà³£Ó÷½·¨
1£©ThreadÀàÖг£ÓÃÖØÔØ¹¹Ô캯Êý£º
Thread()
Thread(Runnable target)
Thread(Runnable target,String name)
Thread(String name)
2£©setName() ÉèÖÃÏß³ÌÃû³Æ
getName()  »ñµÃÏß³ÌÃû³Æ
sleep() ±£Ö¤µ±Ç°Ïß³ÌÖÁÉÙÔÚÖ¸¶¨µÄ˯Ãßʱ¼äÍ£Ö¹Ö´ÐÐ
yield()  ʹµ±Ç°ÔËÐÐÖеÄÏ̻߳ص½¿ÉÔËÐÐ״̬£¬²¢Ê¹ÏàͬÓÅÏȼ¶µÄÏß³ÌÓлú»áÔËÐУ¬µ«²»±£Ö¤
join()   ±£Ö¤µ±Ç°Ïß³ÌÍ£Ö¹Ö´ÐУ¬Ö±µ½ËûËù¼ÓÈëµÄÏß³ÌÍê³ÉΪֹ
3£©Ö÷ÒªÏ̷߳½·¨
ObjectÀà          ThreadÀà          Runnable½Ó¿Ú
wait()              start()               run()
notify()            yield()  (¾²Ì¬)       
notifyAll()         sleep()(¾²Ì¬)   
                       jion()
3.Ïß³Ì״̬Óëת±ä
ÐÂ״̬-->¿ÉÔËÐÐ״̬<-->Ô


Ïà¹ØÎĵµ£º

javaÖÐÉú³É32Î»Ëæ»úID

 Ôںܶàʱºò£¬ÎÒÃÇÐèÒª×Ô¶¯Éú³ÉÓÀÔ¶²»»áÖØ¸´µÄID£¬Òò´ËÎÒÃÇ»áÓõ½ÒÔϵĴúÂëÀ´ÊµÏÖ£º
×¢Ò⣺ÐèÒª¼ÓÈëÁ½¸öapacheµÄ°ü,´úÂëºÍ°üÇë´Óhttp://www.blogjava.net/afei0922/articles/129589.html ÏÂÔØ
package cn.com.cinda.rtx.state;
import org.apache.commons.id.Hex;

public class RandomCode {
pub ......

JAVA³£ÓÃÀàµÄʹÓ÷½·¨

JAVA³£ÓÃÀàµÄʹÓ÷½·¨
£±¡¢IntegerÀà
£²¡¢FloatÀà
£³¡¢DoubleÀà
£´¡¢CharacterÀà
£µ¡¢StringÀà
£¶¡¢StringTokenizerÀà
£·¡¢StringBufferÀà
£¸¡¢RandomÀà
1£®IntegerÀàµÄʹÓ÷½·¨
Interger£ºÕûÊýÀàÐÍ
£±¡¢ÊôÐÔ¡£
static int MAX_VALUE£º·µ»Ø×î´óµÄÕûÐÍÊý£»
static int MIN_VALUE£º·µ»Ø×îСµÄÕûÐÍÊý£»
static C ......

ÉîÈë̽Ë÷Java¹¤×÷Ô­Àí£ºJVM£¬ÄÚ´æ»ØÊÕ¼°ÆäËû

JavaÓïÑÔÒýÈëÁËJavaÐéÄâ»ú£¬¾ßÓÐ¿çÆ½Ì¨ÔËÐеŦÄÜ£¬Äܹ»ºÜºÃµØÊÊÓ¦¸÷ÖÖWebÓ¦Óá£Í¬Ê±£¬ÎªÁËÌá¸ßJavaÓïÑÔµÄÐÔÄܺͽ¡×³ÐÔ£¬»¹ÒýÈëÁËÈçÀ¬»ø»ØÊÕ»úÖÆµÈй¦ÄÜ£¬Í¨¹ýÕâЩ¸Ä½øÈÃJava¾ßÓÐÆä¶ÀÌØµÄ¹¤×÷Ô­Àí¡£
1£®JavaÐéÄâ»ú
JavaÐéÄâ»ú£¨Java Virtual Machine£¬JVM£©ÊÇÈí¼þÄ£ÄâµÄ¼ÆËã»ú£¬Ëü¿ÉÒÔÔÚÈκδ¦ÀíÆ÷ÉÏ£¨ÎÞÂÛÊÇÔÚ¼ÆËã»úÖл ......

Java¶àÏß³ÌʵÏÖÒì²½µ÷ÓÃ

ÔÚJAVAƽ̨,ʵÏÖÒì²½µ÷ÓõĽÇÉ«ÓÐÈçÏÂÈý¸ö½ÇÉ«:µ÷ÓÃÕß Ìá»õµ¥ ÕæÊµÊý¾Ý
Ò»¸öµ÷ÓÃÕßÔÚµ÷ÓúÄʱ²Ù×÷,²»ÄÜÁ¢¼´·µ»ØÊý¾Ýʱ,ÏÈ·µ»ØÒ»¸öÌá»õµ¥.È»ºóÔÚ¹ýÒ»¶Ïʱ¼äºóƾÌá»õµ¥À´»ñÈ¡ÕæÕýµÄÊý¾Ý.
È¥µ°¸âµêÂòµ°¸â£¬²»ÐèÒªµÈµ°¸â×ö³öÀ´£¨¼ÙÉèÏÖ×öÒªºÜ³¤Ê±¼ä£©£¬Ö»ÐèÒªÁì¸öÌá»õµ¥¾Í¿ÉÒÔÁË£¨È¥¸É±ðµÄÊÂÇ飩£¬µÈµ½µ°¸â×öºÃÁË£¬ÔÙÄÃÌá»õµ¥ ......

java elÅäÖúÍʹÓÃ


Ê×ÏÈÈ·¶¨ÓõÄServlet / JSPµÄ°æ±¾¡£
²é¿´web.xmlµÄ¿ªÍ·²¿·Ö£¬Èç¹ûÓÐÒÔÏÂÄÚÈÝ£¬±íʾÊÇServlet 2.4 / JSP 2.0¡£
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.s ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ