java ¶à̬(2)
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ÔÎÄ£ºhttp://blog.csdn.net/thinkghoster/archive/2008/04/19/2307001.aspx
class
A
...
{
public
String show(D obj)
...
{
return
(
"
A and D
"
);
}
public
String show(A obj)
...
{
return
(
"
A and A
"
);
}
}
class
B
extends
A
...
{
public
String show(B obj)
...
{
return
(
"
B and B
"
);
}
public
String show(A obj)
...
{
return
(
"
B and A
"
);
}
}
class
C
extends
B
...
{}
class
D
extends
B
...
{}
A a1
=
new
A();
A a2
=
new
B();
B b =
new
B();
C c
=
new
C();
D d
=
new
D();
&nbs
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jspÊä³ö¸ñʽ»¯ºóµÄÈÕÆÚ
<fmt:formatDate value="${whiteNumber.crtdate }" pattern="yyyy-MM-dd HH:mm:ss"/>
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<s:iterator>±êÇ©ÀﻹÓÐ<s:iterator>± ......
/**
* ÓйØÈÕÆÚ¹¤¾ßÀà(extends TimeUtil)
*
* TimeUtilÖ÷Òª¹¦ÄÜÓУº
* 1.¸÷ÖÖÈÕÆÚÀàÐÍ£¨×Ö·û£¬util.Date£¬sql.Date£¬CalendarµÈ£©×ª»»
* 2.»ñȡָ¶¨ÈÕÆÚµÄÄê·Ý£¬Ô·ݣ¬ÈÕ·Ý£¬Ð¡Ê±£¬·Ö£¬Ã룬ºÁÃë
* 3.»ñÈ¡µ±Ç°/ϵͳÈÕÆÚ(Ö¸¶¨ÈÕÆÚ¸ñʽ)
* 4.»ñÈ¡×Ö·ûÈÕÆÚÒ»¸öÔµÄÌìÊý
* 5.»ñȡָ¶¨Ô·ݵĵÚÒ»Ìì,×îºóÒ»Ìì
*
* Date ......
package com.test.util;
import java.sql.*;
public class ConnectDB {
private Connection conn=null;
private PreparedStatement pt=null;
private ResultSet rs=null;
private String uname="sa";
private String upwd="sa";
private String url="jdbc:microsoft:sqlserv ......
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±¾ÎÄÃèÊöÁËÔÚJ2meÖпª·¢Ö÷ҪʹÓõÄÍøÂçÁ¬½Ó·½·¨£¬ ......
Java¶ÁÎļþдÎļþ²Ù×÷
By Aillo on March 27, 2008 7:56 PM | 0 Comments | Previous | Next | EDIT
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