How do I stop or kill a running thread when a condition is true

[chikaman]

I have a class ImpServer which has a method accept, which a client can call by Remote Method Invocation. Accept method has an inner class which implements runnable. I try to use return to exit from the run method if nm is equal to userName. But there is no exit from the run method. What I actually want to do is to stop the thread from running. I don't no how to do this. Please somebody help me

public class ImpServer extends UnicastRemoteObject implements Contract, Runnable{
 
public void accept(final String nm) throws RemoteException {
	new Thread(new Runnable() {
		public void run() {
		synchronized(client){
			for(int i=0; i<client.size(); i++){
				String userName = (String)client.get(i);
				if(nm.equals(userName)){
					try{
					cc.notifyDuplicateName("Duplicate names”)
					}catch(Exception e){}
					return;
 
				}
			}
		}
 
		try {
 
			synchronized(client) {
				client.add(nm);
				send(nm);
				ss = new Sub(nm);
				sData.add(ss);
 
			}
		} catch(Exception e) {
                  System.err.println(e);
        }
 
	}
	}).start();
	}
}

[Johannes]

You can use thread.interrupt()

Java 2 Platform SE 5.0

[Json]

The interrupt method will only set the interrupted boolean to true but it wont actually kill the thread. The thread dies once it reaches the end or another exception is throw. You can always throw a runtime exception in the thread.

Where exactly does the thread lock up and stay in a running state?

// Json

[drummerp]

Just add a bit in the run method to deal with the interrupted flag...

[linda11022]

thanks for all your post