Java ±éÀú Map
Map m = new HashMap();
for (Object o : map.keySet()){
map.get(o);
}
JDK1.4
Map map = new HashMap() ;
Iterator it = map.entrySet().iterator() ;
while (it.hasNext())
{
Map.Entry entry = (Map.Entry) it.next() ;
Object key = entry.getKey() ;
Object value = entry.getValue() ;
}
Ïà¹ØÎĵµ£º
ÔÚJSPÀ»ñÈ¡¿Í»§¶ËµÄIPµØÖ·µÄ·½·¨ÊÇ£ºrequest.getRemoteAddr£¨£©£¬ÕâÖÖ·½·¨Ôڴ󲿷ÖÇé¿ö϶¼ÊÇÓÐЧµÄ¡£µ«ÊÇÔÚͨ¹ýÁËApache£¬SquidµÈ·´Ïò´úÀíÈí¼þ¾Í²»ÄÜ»ñÈ¡µ½¿Í»§¶ËµÄÕæÊµIPµØÖ·ÁË¡£
Èç¹ûʹÓÃÁË·´Ïò´úÀíÈí¼þ£¬½«http://192.168.1.110£º2046/ µÄURL·´Ïò´úÀíΪ http://www.javapeixun.com.cn / µÄURLÊ ......
JDK6ÒѾ·¢²¼ºÜ¾ÃÁË£¬ºÜÔç¾ÍÌý¹ýËûÒѾ֧³Ö½Å±¾ÓïÑÔÁË£¬²»¹ýһֱûÓÐʱ¼ä³¢ÊÔ£¬½ñÌì͵ÏÐÊÔÁËһϣ¬¸Ð¾õ²»´í¡£
¡¡¡¡javax.script°üËüÊÇJavaÐÂÔöµÄ²Ù×÷½Å±¾µÄ¹¤¾ß°ü£¬
¡¡¡¡ÀûÓÃËüÎÒÃÇ¿ÉÒԶԽű¾ÓïÑÔ½øÐвÙ×÷£¨±¾Àý½öÊÇÕë¶Ôjavascript
£©
¡¡¡¡1.ÓÃÒýÇæÖ±½Ó½âÎö½Å±¾¹«Ê½
¡¡¡¡Java´úÂë
¡¡¡¡//´´½¨½Å±¾ÒýÇæ¹ÜÀíÆ÷
¡¡¡¡Scri ......
ListµÄÓ÷¨
List°üÀ¨List½Ó¿ÚÒÔ¼°List½Ó¿ÚµÄËùÓÐʵÏÖÀà¡£ÒòΪList½Ó¿ÚʵÏÖÁËCollection½Ó¿Ú£¬ËùÒÔList½Ó¿ÚÓµÓÐCollection½Ó¿ÚÌṩµÄËùÓг£Ó÷½·¨£¬ÓÖÒòΪListÊÇÁбíÀàÐÍ£¬ËùÒÔList½Ó¿Ú»¹ÌṩÁËһЩÊʺÏÓÚ×ÔÉíµÄ³£Ó÷½·¨£¬Èç±í1Ëùʾ¡£
±í1 List½Ó¿Ú¶¨ÒåµÄ³£Ó÷½·¨¼°¹¦ÄÜ
´Ó±í1¿ÉÒÔ¿´³ö£¬List½Ó¿ÚÌṩµÄÊʺÏÓÚ×ÔÉíµÄ ......
¼ÇµÃ´óѧ±ÏÒµÕÒ¹¤×÷ʱ£¬Ãæ¹Ù¾³£ÎʵľÍÊÇ˵˵“==Óëequals”µÄÇø±ð£¬ºúÂÒ´ðһͨ¡£½ñÌì¿´Ò»ÏÂÔÀí°É¡£
ʲôʱºòÐèÒªÖØÐ´equals()?
¡¡¡¡ÎÒÃÇÖªµÀÿһ¸öjavaÀà¶¼¼Ì³Ð×ÔObjectÀ࣬equals()ÊÇObjectÀàÖÐÌṩµÄ·½·¨Ö®Ò»¡£ÄÇô£¬ÈÃÎÒÃÇÏÈÀ´¿´¿´Object#equals()ÔÚJavaÖеÄÔ´úÂ룺
public boolea ......