Problem in Multi threading.

[Chetans]

How to kill the threads?...
and how to restart them after some time?
Can u help me regarding this....

[masijade]

1. You can't (without using inherently unsafe/dangerous deprecated methods).
2. You can't. Recreate it.

If what you really need is a thread that processes something then "goes to sleep" until the next item to process comes along, use a queue.

[toadaly]

To kill a thread, you need to provide some kind of method that causes an exit of the run loop.

class KillableThread extends Thread {

  boolean keepGoing = true;
  boolean exit = false;

  public synchronized void run() {
     while(keepGoing) {
       ....do something useful and then ...

        try {
          wait(...maybe have a timeout...);
        } catch (InterruptedException iex) {...handle this} 
     }
     exit = true;
     notify(); 
  }

  public synchronized void kill() {
     if(keepGoing) {
       keepGoing = false;
       notify();

       if(!exit) {
         try {
           wait();
        } catch (InterruptedException iex) {...do somethign}
       }
     }
  }
}

[Steve11235]

I suggest reading a good tutorial on threads. They are not something to use without having a sound understanding of the basics.