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   ÔÚÎÒmysql Êý¾Ý¿âÖÐÓÐÕÅBlog±íµÄ×Ö¶ÎΪDateÐÍ£¬ÎÒÃǾ­³£×öµÄÊÇ°ÑËüÈ¡³öÀ´·ÅÔÚÒ³ÃæÉÏÏÔʾ¾ßÌåµÄÄêÔÂÈÕ»ò°üÀ¨Ê±·ÖÃë £¡
 
 public static String DRIVER = "com.mysql.jdbc.Driver";
 public static String URL = "jdbc:mysql://localhost:3306/blog";
 public static String USERNAME = "root";
 public static String PASSWORD = "123";
 
 
/**
  * @param args
  * ºÍÊý¾Ý¿â´ò½»µÀµÄÀà
  * java sql.Date  ÈÕÆÚÀà
  * java sql Time  ʱ¼äÀà
  * java sql Timestamp ÈÕÆÚʱ¼äÀà
  * ÕâÈý¸öÀ඼¼Ì³Ð java .util Date 
  * ͨ¹ýSimpleDataFormat ½øÐиñʽ»¯
  * java .util .Calendar ÈÕÀúÀà¿ÉÒÔÈ¡µÃËùÓж«Î÷ Ëü¼Ì³ÐObjectÀà
  * java .util .Timezone  ʱÇøÀà ´«½øÒ»¸öCalendar  Ò»°ãÎÒÃǵõ½µÄCalendarÊÇϵͳĬÈϵÄʱȥ  ÒªÉèÖÃʱÇø´«½øÒ»¸öCalendar ¼´¿É
  */
   public static void main(String[] args) {
  
  Connection conn  = null;
  PreparedStatement ps = null;
  ResultSet rs  = null;
  
  try {
   Class.forName(DRIVER);
       conn = DriverManager.getConnection(URL, USERNAME,
     PASSWORD);
   String sql  = "select birthday from date";
   ps  =conn.prepareStatement(sql);
   rs = ps.executeQuery();
   
   while(rs.next())
    
   {  
 
    °ÑÊý¾Ý¿âÖеÄDateÐÐת»»ÎªStringÐР Date ÀàÐÍÖ»ÄÜÄõ½ÈÕÆÚ ²»ÄÜÄõ½Ê±¼ä
    Date date =rs.getDate("birthday");//·µ»ØµÄÊÇÒ»¸


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String name = "logging"; // the logging.properties file in src root folder
ResourceBundle rb = ResourceBundle.getBundle(name,Locale.getDefault());
// test the rb
String propertyKey = "xxx";
System.out.println(rb.getString(propert ......

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import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JButton;
import javax.swing.JFrame;
import j ......

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JavaÖÐHashMapʹÓÃ×Ô¶¨ÒåKeyÀà

×Ô¶¨ÒåµÄKeyÀàÐèÒªÖØÔØequals, hashCodeº¯Êý¡£¡£ 
package com.albert.test;
import java.util.Vector;
import java.util.HashMap;
/**
* @author tough_guy
*
*/
//¶ÔÓÚ×Ô¶¨ÒåµÄkey£¬ ÐèÒªÖØÔØhashCodeº¯ÊýºÍequalsº¯Êý
class IPSegment
{
long ip_s;
long ip_e;
int p;
IPSegment Reset(long f ......
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