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  1. #1
    Join Date
    Oct 2008
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    Default about array Thread

    exp, i create array nameThread tpye class DownloadThread

    DownloadThread[] nameThread = new DownloadThread[100];
    for(int i=0;i<100;i++)
    nameThread[i] = new DownloadThread(strUrl);

    now,I don't know to know all Threads run finished.
    plz help me.

  2. #2
    neilcoffey is offline Senior Member
    Join Date
    Nov 2008
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    You can use the CountDownLatch class. The idea is that you create a CountDownLatch with the number of threads you'll have, then waiting on this latch (note "await", not "wait"!):

    Java Code:
    CountDownLatch latch = new CountDownLatch(100);
    // ... create threads, passing them 'latch', and start them
    Then, each thread ends by counting down the latch:

    Java Code:
    // thread's run method
    public void run() {
      try {
        // ... do exciting thing
      } finally {

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