How to Kill a Threan and re run it?

[arun mahajan]

I have a program which run on thread now I have made a GUI interface to run the same. There I have 3 option - Start,Stop,Rerun.
I want to start the thread and would like to rerun it if i stop the same. I am trying following code but it stops but not able to rerun it rathermy application do System.exit(0)?
WHere I am wrong? Could you pl help me?
Code:-
----------

 public void stopThread()
 {
 try
 {
 System.out.println("stop Thread");
 try
 {
dos.close();
dis.close();
}
catch(Exception e)
{
System.out.println("Error cc : "+e);
}
try
{
smsSocket.close();
}
catch(Exception e)
{
System.out.println("Error in closing Socket: "+e);
}

//this method will put every variable in program to null
varNull();

 xx=false;
 System.out.println("Thread destroyed ......");
}
catch(Exception e)
{
System.out.println("Error stopping the thread: "+e);
}
 }
 public void restartThread()
 {
 try
 {

xx=true;
dbconnect();
System.out.println("Calling constructor.....");
connect_smsc();
login_smsc_val=true;
System.out.println("3");
if(login_smsc_val)
{
connect_local();
if(connect_local_val)
{
readLocal();
run();
}
}
}
catch(Exception e)
{
System.out.println("Error starting the thread: "+e);
}
 }
 public synchronized void run()
 {
 while(xx)
 {
 readLocal();
 }
 if(!xx)
 {
 Thread.currentThread().interrupt();
 }
}//run

regards,
Arun
[CODE tags inserted -- PdH]
[ February 05, 2002: Message edited by: Peter den Haan ]

[Alex Zhang]

Actually, thread cannot be restart once it has been stopped! :roll: So U'd better add a while loop and use the boolean field to control the thread!

[Mehul Sanghvi]

Dear Arun,
As mentioned earlier you cannot rerun a thread after interrupting it...
Your code for interuppt button would remain the same as for your stop and rerun button i tried out the following code which i think may help you out..
CODE:

public class ThreadWaitNotify extends Thread
{
boolean threadWait=false;

public ThreadWaitNotify()
{
start();
}//Constructor

public synchronized void run()
{
try
{
for(int i=0; true ; i++)
{
if(!threadWait)
System.out.println(i);
else
wait();
}
}
catch(Exception e)
{
e.printStackTrace();
}

}//run


public void askToWait()
{
threadWait = true;
}//askToWait... Call this on the STOP button


public synchronized void askToNotify()
{
try
{
threadWait = false;
notify();
}
catch(Exception e)
{
e.printStackTrace();  
}
}// askToNotify... Call this on RERUN button



public static void main(String args[])
{
try
{
ThreadWaitNotify twn = new ThreadWaitNotify();
Thread.sleep(1000);
twn.askToWait();//Simulating STOP button pressed
Thread.sleep(1000);
twn.askToNotify();//Simulating RERUN button pressed

}
catch(Exception e)
{
e.printStackTrace();
}
}
}// class end

Regards,
Mehul.....
[CODE tags inserted -- PdH]
[ February 05, 2002: Message edited by: Peter den Haan ]

[Peter den Haan]

Alternatively, you can rewrite your code as a Runnable. To restart, you run your Runnable with a fresh Thread.
- Peter