Class variable

Question

Hi everybody,
In the following code, I want to set the class variable fileChanged to true after I called CheckFileThread class. It seems since CheckFileThread is a thread, after the timer is cancelled I won't come back to point1. How can I set the class variable thru other class?
Any help is greatly appreciated. Thanks.
import java.util.*;
import java.lang.Thread;
class testClass6
    private static boolean fileChanged = false;
    public static void main(String[] Args)
     testClass6 t = new testClass6();
     t.execute();
    public void execute()
     new CheckFileThread();     
//point1
// I want to check when the class variable: fileChanged becomes true.
     if (!fileChanged)
         System.out.println("Class variable fileChanged is false.");
     else
         System.out.println("Class variable fileChanged is now true.");
    class CheckFileThread
     CheckFileThread()
         Calendar rightNow = Calendar.getInstance();
         Date time = rightNow.getTime();
         System.out.println("This is time: " + time);
         new Reminder3(time);
     class Reminder3
         Timer timer;
         public Reminder3(Date time)
          timer = new Timer();
          timer.schedule(new RemindTask3(), time, 1*1000);
         class RemindTask3 extends TimerTask
          int a = 3;
          public void run()
              if (a > 0)
                   System.out.println("I'm inside run. This message will print out every sec!");
                   a--;               
              else
                   System.out.println("Times up!");
                   timer.cancel();
                   System.out.println("Setting the class variable to true...");
                   fileChanged = true;
          }//endof m:run
         }//endof class:RemindTask3
     }//endof class:Reminder3
    }//endof class: CheckFileThread
} //endof class: testClass6

Answer 1

Thanks for the reply. That's what I'm trying to do:
method: execute() creates many theards and they start running. Now at one point I have to check if an input file changed since last modification. If NO, nothing changes; if YES, I have to stop all running threads and create new threads. The method that checks if input file has changed or not, it's a thread on its own that runs every 24 hours. It's a seperate class inside execute() but it seems I can't set the class variable: fileChanged thru that class. Below is a small code that says what I am trying to do. Sorry if I made you confused!
import java.util.*;
import java.lang.Thread;
class testClass6
    private volatile static boolean fileChanged = false;
    public static void main(String[] Args)
     testClass6 t = new testClass6();
     t.execute();
    public void execute()
// Creates threads and they are running.
// Lot's of threads are running, I check if the class variable: fileChanged is true or not every 24 hours. If it's
// true, I have to stop all running threads.
     new CheckFileThread();     
     if (!fileChanged)
         System.out.println("Class variable fileChanged is false.");
     else
         System.out.println("Class variable fileChanged is now true thru another class.");
// It's a thread that runs every 24 hours
    class CheckFileThread
     CheckFileThread()
// Here check to see if the file changed since last modification, if yes, set fileChanged = true
     }//endof class: CheckFileThread
} //endof class: testClass6