Changing fields from run() method

I have some threads in my program. There is one which in his run() method changes field of other class, my problem is that the change appears with some dealay. In my opinion the delay is to long. Is there any way to make it faster??
Thanks for reply.
Greg.

I think can... u can set the timeslice of the thread to run faster... try looking it here...
http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Thread.html
Hope it helps!

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Hi Folks,
Please help me in my query below:
Consider there is a Z-table with two fields TABNAM and FIELD having values KNA1 and NAME1 respectively.
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@Hartmut P
As Rob said i want to get the value of the field from internal table. the code is something like this.
I_KNA1 contains records for customers.
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KNA1                 NAME1
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Create a multi-threaded prime number calculator that is based on the producer-consumer model
using semaphores. Your program should be able to check for prime numbers in a range specified
by the user and with a variable number of threads. Example:
$ java PrimeFind 3 5000 10000
should use 1 producer and 2 consumers (3 threads in total, obviously the minimum is 2) to find all
the prime numbers in the range [5000,10000].
The producer should: use a buffer to store candidate numbers that have to be checked for
primality.
Consumers should: read from the buffer, check if a number is prime and update the status of the
program accordingly (e.g. show the number on the screen, or save it to a file)
import java.util.concurrent.Semaphore;
import java.io.*;
public class Assign1 {
static int fromThisNumber;
static int toThisNumber;
static int numberOfThreads;
static int buffer[];
static Semaphore ready;          /*This semaphore is used by the Producer to signal
                                     an "OK" to the consumers*/
static Semaphore critical; /*This is a Mutex semaphore. It allows only 1 consumer
                                     to enter his critical section.
static Semaphore counter;     /*This semaphore acts as a counter.
                                    Instead of having a global variable
                                     incremented each time, we just release()
                                     this semephore when we find a prime number
                                     Because remember that release() increments permits
static Producer prod;
static Consumer cons[];
static int in=0;
static int out=0;
static PrintWriter outFile;
     public static void main (String args[]){
          try{
               outFile=new PrintWriter(new FileWriter("primes.txt"));
               }catch(Exception e){}
          numberOfThreads=Integer.parseInt(args[0]);
          fromThisNumber=Integer.parseInt(args[1]);
          toThisNumber=Integer.parseInt(args[2]);
          buffer=new int[Integer.parseInt(args[2])-Integer.parseInt(args[1])+1];
          ready=new Semaphore(0,false); /*We initialise it to 0 because we wait
                                                  for the Producer to produce atleast a
                                                  item. Suppose ready was 1 and if
                                                  Consumer ran first he would be in an
                                                  empty buffer */
          critical=new Semaphore (1,false);/*We initialise it to 1 because when
                                                     the first Consumer thread tries
                                                     to enter its critical section, it
                                                     should be allowed to;
                                                     Subsequent threads will have to
                                                     wait since only 1 thread can
                                                     access its critical section at a time*/
          counter=new Semaphore(0,false); // duh!
          cons=new Consumer[numberOfThreads-1]; /*numberOfThreads-1 because 1 thread
                                                            is taken by the Producer*/
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          prod=new Producer();
          //Creating the Consumer object and start the thread.
          for(int i=0;i<cons.length;i++)
                    cons=new Consumer();
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          prod.start();
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               if(buffer[i]!=0)
                         System.out.println(buffer[i]);
                         outFile.println(buffer[i]);
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          outFile.println("Total primes found between "+args[1]+" and "+toThisNumber+": "+counter.availablePermits());
          outFile.close();*/
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     public void run(){try{
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               {     System.out.println("producing");
                    buffer[in]=fromThisNumber;
                    in++;
                    fromThisNumber++;
                    ready.release();
          catch (Exception e){e.printStackTrace();}
          System.out.println("ALL PRODUCING DONE");
static class Consumer extends Thread {
     int tempout=0;
     public void run(){try{
          System.out.println("before while"+this.getId());
          while(tempout<=in)
               System.out.println("before ready"+this.getId()+" "+ready.availablePermits()+" "+in);
               ready.acquire();
               System.out.println("before critical.acquire"+this.getId());
               critical.acquire();
               tempout=out;
               out++;
               critical.release();
               if(!isPrime(buffer[tempout]))
                    {System.out.println(buffer[tempout]+" by "+this.getId());buffer[tempout]=0;}
               else {counter.release();System.out.println("prime added: "+buffer[tempout]+" by "+this.getId());}
               critical.acquire();
               tempout=out;
               System.out.println("tempout:"+tempout+" of "+this.getId());
               critical.release();
          System.out.println("ALL CONSUMING DONE"+this.getId());
     catch(Exception e){e.printStackTrace();}
     //Prime number-checking method
     public boolean isPrime(int n){
          for(int i=2;i<=(n/2);i++)
               if(n%i==0)
                    return false;
          return true;
======================
import java.util.concurrent.Semaphore;
import java.io.*;
/* 3 questions to ask Barlas
* Why error if I start the Consumer threads before Producer
* Why does the counter semaphore always give a +1 result at the end
* Is there a way I can verify that all the work is not being done by only 1 consumer thread? In other words, the workload is being shared properly
* if I put ready.acquire() outside or inside the while loop, its not making any difference, why?
* Strangely, its not making any difference if I playing with the release() and aquire() of the semaphores, WHY?!?!
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static int fromThisNumber;
static int toThisNumber;
static int numberOfThreads;
static int buffer[];
static Semaphore ready;          /*This semaphore is used by the Producer to signal
                                   an "OK" to the consumers*/
static Semaphore critical; /*This is a Mutex semaphore. It allows only 1 consumer
                                   to enter his critical section.
static Semaphore counter;     /*This semaphore acts as a counter.
                              Instead of having a global variable
                                   incremented each time, we just release()
                                   this semephore when we find a prime number
                                   Because remember that release() increments permits
static Producer prod;
static Consumer cons[];
static int in=0;
static int out=0;
static PrintWriter outFile;
     public static void main (String args[]){
          try{
               outFile=new PrintWriter(new FileWriter("primes.txt"));
               }catch(Exception e){}
          numberOfThreads=Integer.parseInt(args[0]);
          fromThisNumber=Integer.parseInt(args[1]);
          toThisNumber=Integer.parseInt(args[2]);
          buffer=new int[Integer.parseInt(args[2])-Integer.parseInt(args[1])+1];
          ready=new Semaphore(0,false); /*We initialise it to 0 because we wait
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                                                  item. Suppose ready was 1 and if
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                                                  empty buffer */
          critical=new Semaphore (1,false);/*We initialise it to 1 because when
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                                                  should be allowed to;
                                                  Subsequent threads will have to
                                                  wait since only 1 thread can
                                                  access its critical section at a time*/
          counter=new Semaphore(0,false); // duh!
          cons=new Consumer[numberOfThreads-1]; /*numberOfThreads-1 because 1 thread
                                                            is taken by the Producer*/
          //Creating Producer object
          prod=new Producer();
          //Creating the Consumer object and start the thread.
          for(int i=0;i<cons.length;i++)
                    cons[i]=new Consumer();
                    cons[i].start();
          prod.start();
          //Printing to screen and file
/*          for(int i=0;i<buffer.length;i++)
               if(buffer[i]!=0)
                         System.out.println(buffer[i]);
                         outFile.println(buffer[i]);
          System.out.println("Total primes found between "+args[1]+" and "+toThisNumber+": "+counter.availablePermits()+"\n primes.txt written");
          outFile.println("Total primes found between "+args[1]+" and "+toThisNumber+": "+counter.availablePermits());
          outFile.close();*/
static class Producer extends Thread {
     public void run(){try{
          while(in<buffer.length)     /*'in' should always be more than 'out'.Oherwise the consumer will try to access an empty index*/
               {     System.out.println("producing");
                    buffer[in]=fromThisNumber;
                    in++;
                    fromThisNumber++;
                    ready.release();
          catch (Exception e){e.printStackTrace();}
          System.out.println("ALL PRODUCING DONE");
static class Consumer extends Thread {
     int tempout=0;
     public void run(){try{
          System.out.println("before while"+this.getId());
          while(tempout<=in)
               System.out.println("before ready"+this.getId()+" "+ready.availablePermits()+" "+in);
               ready.acquire();
               System.out.println("before critical.acquire"+this.getId());
               critical.acquire();
               tempout=out;
               out++;
               critical.release();
               if(!isPrime(buffer[tempout]))
                    {System.out.println(buffer[tempout]+" by "+this.getId());buffer[tempout]=0;}
               else {counter.release();System.out.println("prime added: "+buffer[tempout]+" by "+this.getId());}
               critical.acquire();
               tempout=out;
               System.out.println("tempout:"+tempout+" of "+this.getId());
               critical.release();
          System.out.println("ALL CONSUMING DONE"+this.getId());
     catch(Exception e){e.printStackTrace();}
     //Prime number-checking method
     public boolean isPrime(int n){
          for(int i=2;i<=(n/2);i++)
               if(n%i==0)
                    return false;
          return true;
===========================
BTW, when I tried to change extends Thread to implements Runnable I got some kinda of error.
Actually, my program is pretty complete... its just that something if messed up in my Consumer's run() method's while loop... I think
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I need to change a large number of running total fields to formulas based on those running totals. They already have custom formatting and suppression applied. Is there anyway to switch the source/type of the field from the running total to the formula so I don't have to manually re-apply all the complex formatting and suppression rules?

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Changing fields from run() method

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