JavaÈçºÎ±éÀúMapµÄËùÓеÄÔªËØ
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
Java NIO APIÏê½â
ÔÚJDK
1.4ÒÔǰ£¬JavaµÄIO²Ù×÷¼¯ÖÐÔÚjava.ioÕâ¸ö°üÖУ¬ÊÇ»ùÓÚÁ÷µÄ×èÈû£¨blocking£©API¡£¶ÔÓÚ´ó¶àÊýÓ¦ÓÃÀ´Ëµ£¬ÕâÑùµÄAPIʹÓúܷ½
±ã£¬È»¶ø£¬Ò»Ð©¶ÔÐÔÄÜÒªÇó½Ï¸ßµÄÓ¦Óã¬ÓÈÆäÊÇ·þÎñ¶ËÓ¦Óã¬ÍùÍùÐèÒªÒ»¸ö¸üΪÓÐЧµÄ·½Ê½À´´¦ÀíIO¡£´ÓJDK 1.4Æð£¬NIO
API×÷Ϊһ¸ö»ùÓÚ»º³åÇø£¬²¢ÄÜÌṩ·Ç×èÈû(non-blo ......
ÎÊ£º
²âÊÔÐÂÊÖ£¬¸ù¾Ý×Ô¼ºÀí½âдµÄµ¥Ôª²âÊÔÓÃÀýÄ£°å£¬µ«ÊÇ¿ª·¢ÈËÔ±(JAVAÓïÑÔ)·´Ó³ÄÑÒÔʵʩ£¬²»ÖªµÀµ½µ×Ó¦¸ÃÈçºÎ¸ÄÕý£¬ÎÒÔ±¾µÄÏë·¨ÊÇÒÔÀàΪµ¥Î»£¬ÎªÈ·±£²âÊÔ¸²¸ÇÂÊ£¬ÏÈ»¿ØÖÆÁ÷ͼ£¬ÒÀ¾Ý¶ÀÁ¢Â·¾¶È·¶¨ÊäÈëÊä³ö£¬ÓÐÁËÊäÈëÊä³ö¾ÍËãÒ»¸öÓÃÀýÁË£¬µ«´ó¼Ò·´Ó³£¬Ò»ÀàΪµ¥Î»»¿ØÖÆÁ÷ͼ²»ºÃ»£¬ÀàÖпÉÄÜÉæ¼°ºÜ¶àº¯Ê ......
http://blog.csdn.net/ycyangcai/archive/2009/06/21/4285997.aspx
1.ÉùÃ÷Ò»¸ömap: Map map = new HashMap();
2.ÏòmapÖзÅÖµ,×¢Ò⣺mapÊÇkey-valueµÄÐÎʽ´æ·ÅµÄ.Èç:
map.put("sa","dd");
3.´ÓmapÖÐȡֵ:String str = map.get("sa").toString();½á¹ûÊÇ:str = "dd";
4.±éÀúÒ»¸ömap£¬´Ó ......
1.ÉùÃ÷Ò»¸ömap: Map map = new HashMap();
2.ÏòmapÖзÅÖµ,×¢Ò⣺mapÊÇkey-valueµÄÐÎʽ´æ·ÅµÄ.Èç:
map.put("sa","dd");
3.´ÓmapÖÐȡֵ:String str = map.get("sa").toString();½á¹ûÊÇ:str = "dd";
4.±éÀúÒ»¸ömap£¬´ÓÖÐÈ¡µÃkey ºÍvalue
JDK1.5
Map m = new HashMap();
for ( ......