Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Java¶¨Ê±ÈÎÎñµÄʵÏÖ

¢Ù¼Ì³ÐTimerTask£¬ÖØдrun·½·¨
package bamboo.task;
import java.util.TimerTask;
public class TimeTaskTest extends TimerTask{
 @Override
 public void run() {
  System.out.println("hi");
 }
}
¢Úͨ¹ýtimerÀ´ÉèÖÃij¸öʱ¼äÀ´µ÷Ó㬻òÕßÊÇÏà¸ô¶à³¤Ê±¼äµ÷ÓÃ
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());
 }
}


Ïà¹ØÎĵµ£º

java ʵÏÖÏÂÔع¦ÄÜ

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

java ½âÎöMP3Îļþ


Ê×ÏÈÐèÒªÖªµÀµÄÊÇ£¬MP3ÎļþµÄÎļþÐÅÏ¢¶¼·ÅÔÚÎļþ×îºóµÄ128¸ö×Ö½ÚÀïÃ棬Õâ128¸ö×Ö½Ú·Ö±ð´æ´¢µÄÐÅÏ¢ÈçÏ£º
char Header[3];    /* ±êÇ©Í·±ØÐëÊÇ"TAG"·ñÔòÈÏΪûÓбêÇ© */
char Title[30];    /* ±êÌâ */
char Artist[30];   /* ×÷Õß&n ......

JAVA EXCEL API¼ò½é

      Ê¹ÓÃWindows²Ù×÷ϵͳµÄÅóÓѶÔExcel£¨µç×Ó±í¸ñ£©Ò»¶¨²»»áÄ°Éú£¬µ«ÊÇҪʹÓÃJavaÓïÑÔÀ´²Ù×ÝExcelÎļþ²¢²»ÊÇÒ»¼þÈÝÒ×µÄÊ¡£ÔÚWebÓ¦ÓÃÈÕÒæÊ¢ÐеĽñÌ죬ͨ¹ýWebÀ´²Ù×÷ExcelÎļþµÄÐèÇóÔ½À´Ô½Ç¿ÁÒ£¬Ä¿Ç°½ÏΪÁ÷ÐеIJÙ×÷ÊÇÔÚJSP»òServlet Öд´½¨Ò»¸öCSV £¨comma separated values£©Îļþ£¬²¢½«Õ⸠......

Java ¾²Ì¬´úÀíºÍ¶¯Ì¬´úÀí

1. ´úÀíģʽÖ÷ÒªÓÐÁ½ÖÖ£º¾²Ì¬´úÀíºÍ¶¯Ì¬´úÀí
2. ¾²Ì¬´úÀí£º
±ÈÈçÒªÔÚÊä³ö“HelloWorld”Ç°´òÓ¡Ò»¸ö×Ö·û´®“Welcome”
A:Ïȶ¨ÒåÒ»¸ö½Ó¿ÚÀà
Java´úÂë
package ttitfly.proxy;       
      
public interface HelloWo ......

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 ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ