java ·´Éä
package test;
public class TestFactory<T> {
private Class <T> cls;
public String testabc="";
public TestFactory(String clsName) throws ClassNotFoundException{
cls=(Class<T>) Class.forName(clsName);
}
public T getInstance() throws InstantiationException,
IllegalAccessException{
return cls.newInstance();
}
public static void main(String[] args)
throws ClassNotFoundException,
InstantiationException, IllegalAccessException {
TestFactory tf=new TestFactory(String.class.getName().toString());
String aa=(String)tf.getInstance();
System.
Ïà¹ØÎĵµ£º
ÔÚµ±½ñÕâ¸öʱ´ú,ÒªÏëÄܹ»ºÜºÃµÄÉú´æ,¾ÍµÃÓÐ×ã¹»µÃʵÁ¦,ÓÐÄܹ»¿¿µÄסµÄ¼¼Êõ,ÔÚ´óѧѧÁËÁ½Äê°ëµÄÈí¼þ¹¤³Ìרҵ,ÓÐÁ˺ܶàµÄÌå»á,ѧÁ˺ܶàûÓÐÓõĶ«Î÷,ÓÐһЩËäÈ»ÊǺÜÓÐÓÃ,µ±ÊÇÓÖ²»ÊÇÒ»Á½ÄêÄÚÄÜÓõÄÉϵÄ֪ʶ,ËùÒÔÎҾ͵Ã×Ôѧ,ѧʲôÄØ?ѧÓÐʹÓõö«Î÷,Äܹ»ÎªÈÕºóµÄ¹¤×÷ÓõÄÉϵÄ֪ʶ,Õâô³¤Ê±¼äµÄÌå»áºó,ÎÒ·¢Ï ......
MySQL Java ¿ª·¢Ì××°(·þÎñÆ÷,¹ÜÀí¹¤¾ß,JDBCÇý¶¯,ʾÀý´úÂë)
С¸üÐÂ: ΪÁ˼õÇḺµ£, Óà MySQL-Front 2.5 À´¹ÜÀí, Õâ¸öÈí¼þÎÞÖÐÎÄÎÊÌâ. Èç¹ûÒÔºó¿ªÔ´°æ±¾HeidiSQLµÄ½â¾öÁËÖÐÎÄÎÊÌâ, ¾ÍÓÿªÔ´µÄ.
ÏÂÔØ: http://tomcatmonitor.googlecode.com/files/portable_mysql5.exe 4.02MB (×Ô½âѹ°ü)
²Î¿¼Îĵµ: MySQL 5 ÂÌÉ« ......
×î½üÓ¦ÀÏʦµÄÒªÇó¿´ÁËÊý¾Ý¿â¡£ÔÚÍøÉÏÕÒÁËÊÓƵ£¬ÊǸö½ÌÓý»ú¹¹·¢µÄ¡£ÄǸöÊÓƵ¿´µÃÎÒÖ±·¸À§£¬³ýÁËÀÏʦ½²¿Î½²´íµÄʱºò¡£
ÊÓƵ½²µÃºÜdzÏÔ£¬µÚÒ»Õ½²ÁËsqlÊý¾Ý¿â½á¹¹£¬ÓÐʲôģÐÍ¡£½Ó׎²Ö÷¼ü£¬Íâ¼ü£¬È»ºóÊǽ¨±íÓï¾ä£¬²éѯÓï¾äµÈµÈ¡£
show databases ÏÔʾÊý¾Ý¿â¡£
use ** ʹÓÃÊý¾Ý¿â¡£
create table ** (**,**,**) ½¨±í¡£
se ......
Èç¹ûÄãÔø¾ÓùýPerl»òÈκÎÆäËûÄÚ½¨ÕýÔò±í´ïʽ֧³ÖµÄÓïÑÔ£¬ÄãÒ»¶¨ÖªµÀÓÃÕýÔò±í´ïʽ´¦ÀíÎı¾ºÍÆ¥ÅäģʽÊǶàô¼òµ¥¡£Èç¹ûÄã²»ÊìϤÕâ¸öÊõÓÄÇô“ÕýÔò±í´ïʽ”£¨Regular Expression£©¾ÍÊÇÒ»¸ö×Ö·û¹¹³ÉµÄ´®£¬Ëü¶¨ÒåÁËÒ»¸öÓÃÀ´ËÑË÷Æ¥Åä×Ö·û´®µÄģʽ¡£
Ðí¶àÓïÑÔ£¬°üÀ¨Perl¡¢PHP¡¢Python¡¢JavaScriptºÍJScript£¬¶¼Ö§ ......
µÚ1Õ JavaÓïÑÔ¸ÅÊö
1.1 ֪ʶ¸ÅÀ¨
1.2 ʵÑéÁ·Ï°
1.2.1 Ò»¸ö¼òµ¥µÄÓ¦ÓóÌÐò
classÀï²»ÄÜÔÙÓÐclass£¬ÎÞÂÛÓÐûÓÐpublicÐÞÊΣ¬class¶¼ÊÇƽÐйØϵ£¬ÔÚbinÎļþ¼ÐÖлá²úÉú¸÷×ÔµÄ×Ö½ÚÂëÎļþ¡£Í¬Ò»¸ö.javaÔ´ÎļþÖÐÖÁ¶àÓÐÒ»¸öpublic class£¬Èç¹û²»ÏëÔÙÒ»¸öÔ´ÎļþÖÐд¶à¸öÀ࣬¾Í¸÷×ÔдԴ³ÌÐò£¬²¢°ÑÀ๫Ó㬼´ÓÃpublicÐÞÊΡ£
1.2.2 ......