JavaÃæÊÔÌ⣨8£©
123¡¢Éè¼Æ4¸öỊ̈߳¬ÆäÖÐÁ½¸öÏß³Ìÿ´Î¶ÔjÔö¼Ó1£¬ÁíÍâÁ½¸öÏ̶߳Ôjÿ´Î¼õÉÙ1¡£Ð´³ö³ÌÐò¡£
ÒÔϳÌÐòʹÓÃÄÚ²¿ÀàʵÏÖỊ̈߳¬¶ÔjÔö¼õµÄʱºòûÓп¼ÂÇ˳ÐòÎÊÌâ¡£
public class ThreadTest1{
private int j;
public static void main(String args[]){
ThreadTest1 tt=new ThreadTest1();
Inc inc=tt.new Inc();
Dec dec=tt.new Dec();
for(int i=0;i<2;i++){
Thread t=new Thread(inc);
t.start();
t=new Thread(dec);
t.start();
}
}
private synchronized void inc(){
j++;
System.out.println(Thread.currentThread().getName()+"-inc:"+j);
}
private synchronized void dec(){
j--;
System.out.println(Thread.currentThread().getName()+"-dec:"+j);
}
class Inc implements Runnable{
public void run(){
for(int i=0;i<100;i++){
inc();
}
}
}
class Dec implements Runnable{
public void run(){
for(int i=0;i<100;i++){
dec();
}
}
}
}
124¡¢JavaÓÐûÓÐgoto?
javaÖеı£Áô×Ö£¬ÏÖÔÚûÓÐÔÚjavaÖÐʹÓá£
125¡¢Æô¶¯Ò»¸öÏß³ÌÊÇÓÃrun()»¹ÊÇstart()?
¡¡¡¡Æô¶¯Ò»¸öÏß³ÌÊǵ÷ÓÃstart()·½·¨£¬Ê¹Ïß³ÌËù´ú±íµÄÐéÄâ´¦Àí»ú´¦ÓÚ¿ÉÔËÐÐ״̬£¬ÕâÒâζ×ÅËü¿ÉÒÔÓÉJVMµ÷¶È²¢Ö´ÐС£Õâ²¢²»Òâζ×ÅÏ߳̾ͻáÁ¢¼´ÔËÐС£run()·½·¨¿ÉÒÔ²úÉú±ØÐëÍ˳öµÄ±êÖ¾À´Í£Ö¹Ò»¸öÏ̡߳£
Ïà¹ØÎĵµ£º
ÍøÂçÉÏÁ÷´«×ÅÒ»¸öGoogle Map ±àÂëÕÛÏßËã·¨µÄJavaʵÏÖ£¬µ«ÊǼÆËã½á¹ûÓëGOOGLE MAP API °ïÖúÀïÃæµÄ½»»¥¹¤¾ßµÄ¼ÆËã½á¹ûÓгöÈ룬ËùÒÔ×Ô¼ºÐ´ÁËÒ»Ò»¸ö£¬¼ÆËã½á¹ûÓëGOOGLE MAP API °ïÖúÀïÃæµÄ½»»¥¹¤¾ßµÄ¼ÆËã½á¹ûÒ»Ö¡£package unit;
/**
* Google Map ±àÂëÕÛÏßËã·¨JavaʵÏÖ
*
* @author libin
*/
public cl ......
1¡¢µ÷ÓÃûÓзµ»ØÖµºÍ²ÎÊýµÄJava·½·¨
1.1¡¢dwr.xmlµÄÅäÖÃ
Xml´úÂë
<dwr>
<allow>
<create creator="new" javascript="testClass" >
<param name="class" value="com.dwr.Test ......
JNBridgeÌṩÁË¿çÔ½JavaÓë.NET´úÂëµÄ·Ö²¼Ê½ÊÂÎñÖ§³Ö
×÷Õß Jonathan Allen ÒëÕß ÕÅÁú ·¢²¼ÓÚ 2009Äê12ÔÂ28ÈÕ ÉÏÎç5ʱ5·Ö
ÉçÇø .NET, Java Ö÷Ìâ »¥²Ù×÷, ÊÂÎñ´¦Àí ±êÇ© JNBridge
ƾ½èJNBridge¼¼Êõ£¬JavaºÍ.NET´úÂëÎÞÐè½»²æ±àÒëÆ÷¾Í¿ÉÒÔʵÏÖ¶ÔÏó¹²Ïí¡£ËùÓÐJava´úÂëÔËÐÐÔÚJVMÉÏ£¬¶ø.NET´úÂëÔòÔËÐÐÔÚCLRÉÏ¡£Ôڸ÷½°¸Ï£¬JVM ......
ÔËÐÐʱ°ó¶¨Ò²½Ð¶¯Ì¬°ó¶¨£¬ËüÊÇÒ»ÖÖµ÷ÓöÔÏó·½·¨µÄ»úÖÆ¡£Javaµ÷ÓöÔÏó·½·¨Ê±£¬Ò»°ã²ÉÓÃÔËÐÐʱ°ó¶¨»úÖÆ¡£
1£®JavaµÄ·½·¨µ÷Óùý³Ì
±àÒëÆ÷²é¿´¶ÔÏóµÄÉùÃ÷ÀàÐͺͷ½·¨Ãû£¨¶ÔÏó±äÁ¿µÄÉùÃ÷ÀàÐÍ£©¡£Í¨¹ýÉùÃ÷ÀàÐÍÕÒµ½·½·¨ÁÐ±í¡£
±àÒëÆ÷²é¿´µ÷Ó÷½·¨Ê±ÌṩµÄ²ÎÊýÀàÐÍ¡£
Èç¹û·½·¨ÊÇprivate¡¢static¡¢final»òÕß¹¹ÔìÆ÷£¬±àÒëÆ ......
20¡¢abstract classºÍinterfaceÓÐÊ²Ã´Çø±ð?
¡¡¡¡ÉùÃ÷·½·¨µÄ´æÔÚ¶ø²»È¥ÊµÏÖËüµÄÀà±»½Ð×ö³éÏóÀࣨabstract class£©£¬ËüÓÃÓÚÒª´´½¨Ò»¸öÌåÏÖijЩ»ù±¾ÐÐΪµÄÀ࣬²¢Îª¸ÃÀàÉùÃ÷·½·¨£¬µ«²»ÄÜÔÚ¸ÃÀàÖÐʵÏÖ¸ÃÀàµÄÇé¿ö¡£²»ÄÜ´´½¨abstract ÀàµÄʵÀý¡£È»¶ø¿ÉÒÔ´´½¨Ò»¸ö±äÁ¿£¬ÆäÀàÐÍÊÇÒ»¸ö³éÏóÀ࣬²¢ÈÃËüÖ¸Ïò¾ßÌå×ÓÀàµÄÒ»¸öʵÀý¡£²»ÄÜÓг ......