java - How to get the output stream from a thread -

i have several runnable classes, each printing string upon completion using system.out.println().

in main() execute them using executorservice ,executor.execute() each of them.

i wondering after executing threads, how output stream them future use ?

pretty using .getinputstream processes there's no such method in thread class. thanks!

there's class implements runnable interface this:

public class implements runnable {    public void run() {        system.out.println(5);         //this thread print out number 5    } } 

and in main function need printed number , store it

public static void main(string[] args) {      executorservice threadpool = executors.newfixedthreadpool(1);     threadpool.execute(new a());     //this statement cause thread object                                       //to print out number 5 on screen     threadpool.shutdown();     ...... } 

now need printed number 5 , store into, integer variable.

i think below code satisfy requirement.

class mycallable implements callable<inputstream> {     @override     public inputstream call() throws exception {         //inputstream inputstreamobject = create object inputstream         return inputstreamobject;     } }  class main {     public static void main(string[] args) {         executorservice executor = executors.newfixedthreadpool(5);         list<future<inputstream>> list = new arraylist<future<inputstream>>();         (int = 0; < 25; i++) {             callable<inputstream> worker = new mycallable();             future<inputstream> submit = executor.submit(worker);             list.add(submit);         }         inputstream inputstreamobject = null;         (future<inputstream> future : list) {             try {                 inputstreamobject = future.get();                 //use inputstreamobject needs             } catch (interruptedexception e) {                 e.printstacktrace();             } catch (executionexception e) {                 e.printstacktrace();             }         }         executor.shutdown();     } }