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POThread behaviour in Java
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copied!<p>I am running the program below but for some reason, it dosen't look like I am getting to the run() method. Basically I am trying to spot the behaviour of threads.I am getting the result below :<br></p> <p>pqni392fr8dchsdmajglvuqsof<br> pqni392fr8dchsdmajglvuqsof has wake up <br> l79uho1tjtot7pcmk4vhh5t8qc <br> l79uho1tjtot7pcmk4vhh5t8qc has wake up <br> adfapus6g1fst56daimrudkgji<br> adfapus6g1fst56daimrudkgji has wake up <br> iqfo9knc99kcb622g36c77m62 <br> iqfo9knc99kcb622g36c77m62 has wake up <br> 67vdpghqit1a4iv3593451ps0a <br> 67vdpghqit1a4iv3593451ps0a has wake up <br></p> <p>As you see I am not getting to the run() method where a thread should sleep.what is the problem? And another question, could a thread execute the run() from the first run of the program because I noticed that the first line of the output is always from the main().</p> <p>Thank you.</p> <hr> <pre><code>import java.math.BigInteger; import java.security.SecureRandom; import java.util.Random; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; import java.util.logging.Level; import java.util.logging.Logger; class myThread implements Runnable { @Override// method run is to be executed by a new thread public void run() { System.out.println("I am here"); int timeRandom = new Random().nextInt(50); try { String ThrName = Thread.currentThread().getName(); Thread.sleep(timeRandom); System.out.println("Thread " + ThrName + " sleeping " + timeRandom); } catch (InterruptedException ex) { Logger.getLogger(myThread.class.getName()).log(Level.SEVERE, null, ex); } // throw new UnsupportedOperationException("Not supported yet."); } } class myClass { static int nthread = 5; public static void main(String[] args) { ExecutorService myService = Executors.newFixedThreadPool(nthread); while (nthread != 0) { Thread.currentThread().setName(new BigInteger(130, new SecureRandom()).toString(32)); System.out.println(Thread.currentThread().getName()); myService.submit(Thread.currentThread()); System.out.println(Thread.currentThread().getName() + " has wake up"); // nthread -= 1; } myService.shutdown(); } } </code></pre>

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