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package bamboo.task;
import java.util.TimerTask;
public class TimeTaskTest extends TimerTask{
 @Override
 public void run() {
  System.out.println("hi");
 }
}
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package bamboo.test;
import java.util.Date;
import java.util.Timer;
import bamboo.task.TimeTaskTest;
public class TimeTest {
 static TimeTaskTest test=new TimeTaskTest();
 
 public static void main(String [] args){
  Timer timer=new Timer();
  
  //Æô¶¯ºÍ¼ä¸ôµÄʱ¼ä 1000ºÁÃë
  
  //timer.schedule(test,0,1000);
  
  //ÉèÖÃʲôʱºòÖ´ÐÐ
  //timer.schedule(test, new Date());
 }
}


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* @param response --HttpServletResponse¶ÔÏó
*/
public static void downloadFile(
String filePath,
javax.servlet.http.HttpServletResponse response) {
String fileName = ""; //ÎļþÃû£¬Êä³öµ½Óû§µÄÏÂÔØ¶Ô»°¿ò
//´ÓÎļþÍêÕû·¾¶ÖÐÌáÈ¡ÎļþÃû£¬²¢½øÐбà ......

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public static String getDiskInfo() {
StringBuffer sb=new StringBuffer();
File[] roots = File.listRoots();// »ñÈ¡´ÅÅÌ·ÖÇøÁбí
for (File file : roots) {
long totalSpace=file.getTotalSpace();
long freeSpace=file.getFreeSpace();
long usa ......

Object Ordering java ÅÅÐò

Object Ordering
A List l may be sorted as follows.
Collections.sort(l);
If the List consists of String elements, it will be sorted into alphabetical order. If it consists of Date elements, it will be sorted into chronological order. How does this happen? String and Date both implement the Compara ......

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