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java ÈÕÆÚ¼ÆËã(¼¸Ììǰºó)

public class DateTest {
 public static void main(String[] args) {
  Date date = new Date(); // н¨Ò»¸öÈÕÆÚ
  SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); // ¸ñʽ»¯ÈÕÆÚ
  String beforeDate = sdf.format(getDateBefore(date, 10));
  System.out.println(beforeDate);
  String afterDate = sdf.format(getDateAfter(date, 10));
  System.out.println(afterDate);
 }
 /**
  * µÃµ½¼¸ÌìǰµÄʱ¼ä
  */
 public static Date getDateBefore(Date d, int day) {
  Calendar now = Calendar.getInstance();
  now.setTime(d);
  now.set(Calendar.DATE, now.get(Calendar.DATE) - day);
  return now.getTime();
 }
 /**
  * µÃµ½¼¸ÌìºóµÄʱ¼ä
  */
 
 public static Date getDateAfter(Date d, int day) {
  Calendar now = Calendar.getInstance();
  now.setTime(d);
  now.set(Calendar.DATE, now.get(Calendar.DATE) + day);
  return now.getTime();
 }
}


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java native interface(JNI)¼¼Êõ¼òµ¥Ó¦ÓÃ

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JavaÉè¼ÆÄ£Ê½Ö®State(״̬ģʽ)

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package com.state;
public class KissingPrincess {
// ±ê־룬±êÖ¾ÊÇÇàÍÜ»¹ÊÇÍõ×Ó¡£
private boolean isFrog = true;
// ¸ù¾ÝisFrog½øÐв»Í¬µÄ²Ù×÷¡£
public void greet() {
if (isFrog)
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Ö÷Ì⣺ʵսjava Concurrent

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Javaµ÷Óô洢¹ý³Ì(MySqlÊý¾Ý¿â)

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DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
  `ID` int(11) NOT NULL auto_increment,
  `NAME` varchar(16) NOT NULL default '',
  `REMARK` varchar(16) NOT NULL default '',
  PRIMARY KEY  (`ID`)
) ENGINE=InnoDB AUTO_INCREMENT=24 DEFAULT CHARSET=utf8;
&nb ......

Java,JavaScript,JScript Çø±ð

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JScriptÊÇÒ»ÖÖÀàËÆJavaScriptµÄÓïÑÔ¡ ......
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