package concurrency;

import java.io.*;

import java.util.concurrent.*;

import java.util.*;

/**

* RUN:

* javac concurrency/SleepingTask.java && java concurrency.SleepingTask

*

* OUTPUT:

* #0(9), #1(9), #2(9), #3(9), #4(9), #1(8), #3(8), #4(8), #0(8), #2(8), #0(7),

* #2(7), #3(7), #4(7), #1(7), #0(6), #1(6), #3(6), #4(6), #2(6), #1(5), #3(5),

* #2(5), #4(5), #0(5), #2(4), #3(4), #0(4), #4(4), #1(4), #4(3), #0(3), #2(3),

* #1(3), #3(3), #2(2), #0(2), #3(2), #1(2), #4(2), #3(1), #0(1), #1(1), #4(1),

* #2(1), #4(Liftoff!), #1(Liftoff!), #2(Liftoff!), #3(Liftoff!), #0(Liftoff!),

*/

public class SleepingTask extends LiftOff {

public void run() {

try {

while (countDown-- > 0) {

System.out.print(status());

// old style:

//

// Thread.sleep(100);

// new style:

//

TimeUnit.MILLISECONDS.sleep(100);

}

}

catch (InterruptedException e) {

System.err.println("Interrupted");

}

}

public static void main(String[] args) {

ExecutorService exec = Executors.newCachedThreadPool();

for (int i = 0; i < 5; i++) {

exec.execute(new SleepingTask());

}

exec.shutdown();

}

}