how to assign different task to different thread

how to assign different task to different thread

Please go through this code and help me to achieve the desired output
import java.util.Date;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import cyclicbarrier.Hashmap;
public class ThreadpoolDemo {
private static final int nthreads=10;
public static void main(String[] args) throws InterruptedException {
ExecutorService exe=Executors.newFixedThreadPool(nthreads);
for(int i=1;i<7;i++)
{
Runnable worker=new Myrunnable(i);
exe.execute(worker);
}
exe.shutdown();
}
}
class Myrunnable implements Runnable
{
private int ii;
Myrunnable(int i)
{
ii=i;
}
public void run()
{
Hashmap hsamap=new Hashmap();
System.out.println(hsamap.getcity(ii));
System.out.println(Thread.currentThread().getName()+" Executed
this");
Thread.currentThread().stop();
System.out.println(new Date());
}
}
import java.util.HashMap;
public class Hashmap {
public String getcity(int i)
{
HashMap<Integer,String> hm=new HashMap<Integer,String>();
hm.put(1, "AAAA");
hm.put(2, "BBBB");
hm.put(3, "CCCC");
hm.put(4, "DDDD");
hm.put(5, "EEEE");
hm.put(6, "FFFF");
String value=hm.get(i);
return value;
}
}
Output:
BBBB
pool-1-thread-2 Executed this
DDDD
pool-1-thread-4 Executed this
FFFF
pool-1-thread-6 Executed this
AAAA
pool-1-thread-1 Executed this
CCCC
pool-1-thread-3 Executed this
EEEE
pool-1-thread-5 Executed this
now if I change the values to for(int i=3;i<7;i++),I should get
the output as
DDDD
pool-1-thread-4 Executed this
EEEE
pool-1-thread-5 Executed this
FFFF
pool-1-thread-6 Executed this
means Thread 1 should always display "AAAA" if i request,Thread 2 should
always display "BBBB" and so on Please tell me how can i achieve this. or
else if I assign i=3; then thread 3 only should display corresponding
Hashmap values,if I assign i=5;then thread 5 only should display
corresponding Hashmap values. Thanks in advance