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

javaʵÏÖµÄstack pop·½·¨Ð¡Ï¸½Ú

 Ç°Ð©Ìì±àС³ÌÐò£¬Ð´ÆäÖÐÓÐÒ»¸ö×Ô¼ºÊµÏÖµÄstackµÄpopÈçÏ£º
public class Stack<T>{
 
   private ArrayList<T>  list;
   public Stack(){
          list =  new ArrayList<T>();
}
          public T pop(){
              if(list.size != 0 ){
                 T popOut = list.get(list.size - 1);
                 remove(popOut);
                 return popOut;
             }
             else{
               return null;
            }
 }
}
ÎÒµ±Ê±ÔÚÁíÒ»¸öÀàÀïdebug£¬ã¶ÊÇÕÒ²»³öÀ´£¬×îºó²Å·¢ÏÖÕâÀïµÄpop·½·¨³öÎÊÌâÁË¡£µ±listÊÇintÊý¾Ýʱ£¬ÈôlistΪ1£¬2£¬3£¬2£»pop³öÀ´ÊÇ2£¬µ«ÊÇlist²¢²»ÈçÏëÏóÖеÄΪ1£¬2£¬3£»¶øÊDZä³ÉÁË1£¬3£¬2£»ÕâÊÇÒòΪdoubleµÄequals·½·¨È϶¨Ö»ÒªÖµÒ»ÑùÁ½Õß¾ÍÒ»Ñù£¬ËüpopPutΪ2£¬½Ó×Åremove(2);ËüÔÚÕÒµ½µÚÒ»¸ö2ÊǾÍÈÏΪÄÇÒѾ­Æ¥ÅäÁË£¬¾Í°ÑËüɾ³ý£¬ËùÒÔremoveÖÐÓ¦¸ÃÓÃËûµÄÖØÔØº¯Êýremove(list.size - 1).
µ±È»»¹Ó¦¸Ã×¢ÒâÈôÊÇintÐ͵ÄËûÓÅÏȽ«ÆäÈÏΪÊÇindex¶ø·ÇÊý¾Ý¡£


Ïà¹ØÎĵµ£º

javaÈëÃÅ

 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 ......

Java NIO APIÏê½â

 
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 ......

java¿ª·¢DB2³ÌÐò

1. JDBC Çý¶¯³ÌÐò

1.1 DB2 JDBC Type 2 Çý¶¯³ÌÐò

DB2 ¿Í»§»ú

²»½¨ÒéʹÓÃ

COM.ibm.db2.jdbc.app.DB2Driver µ÷ÓÃClass.forName() ·½·¨¡£

1.2 IBM DB2 ͨÓÃJDBC ºÍSQLJ Çý¶¯³ÌÐò

ÌṩÁËType 2 Á¬½ÓÐÔºÍType 4 Á¬½ÓÐÔ

¿ÉÒÔ½«Õâ¸öÇý¶¯³ÌÐòÓÃÓÚapp ......

¹ØÓÚJavaÕ»Óë¶ÑµÄ˼¿¼

 
­×÷ÕߣºÎ´Öª À´Ô´£ºÔ¹âÈí¼þÕ¾ ¼ÓÈëʱ¼ä£º2005-5-13¡¡Ô¹âÈí¼þÕ¾
­
Ô­Ì⣺ ¹ØÓÚJavaÕ»Óë¶ÑµÄ˼¿¼[/B] ­
1. Õ»(stack)Óë¶Ñ(heap)¶¼ÊÇJava[/B]ÓÃÀ´ÔÚRamÖдæ·ÅÊý¾ÝµÄµØ·½¡£ÓëC++²»Í¬£¬Java[/B]×Ô¶¯¹ÜÀíÕ»ºÍ¶Ñ£¬³ÌÐòÔ±²»ÄÜÖ±½ÓµØÉèÖÃÕ»»ò¶Ñ¡£ ­
­
¡¡¡¡2. Õ»µÄÓÅÊÆÊÇ£¬´æÈ¡ËٶȱȶÑÒª¿ì£¬½ö´ ......

javaÁ¬½ÓÊý¾Ý¿â

1.javaÁ¬½ÓOracleÊý¾Ý¿â£º
 Class.forName("oracle.jdbc.driver.OracleDriver");
 String url="jdbc:oracle:thin:@127.0.0.1:1521:È«¾ÖÊý¾Ý¿âÃû";
 String uname="Óû§Ãû";
 String pwd="ÃÜÂë";
 Connection cn =DriverManager.getConnection(url,uname,pwd);
 Statement s=cn.createS ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ