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TimerTask   task   =   new   TimerTask()   {   
    
  public   void   run()   {   
       String teststring = "AAA";   //我想將這個AAA讓TimerTask以外的程式也能用
     }   
  };   
    
  Timer   timer   =   new   Timer();   
    
  timer.schedule(task,date);
  System.out.println(teststring);

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import java.util.Timer;
public class test1 {    
  public static void main(String[] args) {
    test1 t = new test1();
    Timer timer = new Timer();
    ReminderTask reminderTask = new ReminderTask(timer);
    //一秒後開始執行TimerTask, 而後每隔3秒執行一次, 檢查是否已完成掃描    
    timer.schedule(reminderTask, 1000, 3000);
     String fileName =  reminderTask.getFileName();
     System.out.println( "test1 class..get file name == "+fileName ); 
  }
}

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import java.util.Timer;
import java.util.TimerTask;
 
public class ReminderTask extends TimerTask{
  private int numExec = 5;
  private Timer timer;
  private String fileName;
  
  public ReminderTask(Timer timer) {
    this.timer = timer;
  }
  
  public void run() {
    System.out.println( "ReminderTask run()..." );
    String msgFile;
    String[] msgCodes;
    String[] xmlFiles;
     
     if (numExec > 0) {       
       numExec--;        
      try{        
        String commandUrl = "http://papago:7001/IPMSWeb/CsdServlet?action=get&userid=/ipms001";
        ServletHelper servletHelper = new ServletHelper();
        servletHelper.setCommandUrl(commandUrl);
        msgFile = servletHelper.runServlet();
        if (msgFile.length()>=1){
              String[] parms = msgFile.split("\\|");
              if(parms.length >= 4 ){                  
                msgCodes = parms[1].split(",");
                xmlFiles = parms[3].split(",");                  
                if (xmlFiles !=null){
                  timer.cancel();
                  fileName = xmlFiles[1];
                  System.out.println("ReminderTask class  fileName =="+fileName);
                }    
              }
          } 
      }  
      catch (Exception e){    
        e.printStackTrace();
      }
    }//end of if numExec
     else{
        timer.cancel();
     }
  }
 
  public String getFileName() {
    return fileName;
  }
  public void setFileName(String fileName) {
    this.fileName = fileName;
  }
}