51 lines
1.5 KiB
Java
51 lines
1.5 KiB
Java
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// threads/SingleThreadExecutor.java
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// (c)2016 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
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import java.util.concurrent.*;
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public class SingleThreadExecutor {
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public static void main(String[] args) {
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ExecutorService exec =
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Executors.newSingleThreadExecutor();
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for(int id = 0; id < 10; id++)
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exec.execute(new SleepAndPrintTask(id));
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System.out.println("All tasks submitted");
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exec.shutdown();
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while(!exec.isTerminated()) {
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System.out.println(
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Thread.currentThread().getName() +
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" awaiting termination");
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try {
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Thread.sleep(100);
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} catch(InterruptedException e) {
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throw new RuntimeException(e);
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}
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}
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}
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}
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/* Output:
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All tasks submitted
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main awaiting termination
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main awaiting termination
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SleepAndPrintTask[0] pool-1-thread-1
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main awaiting termination
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SleepAndPrintTask[1] pool-1-thread-1
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SleepAndPrintTask[2] pool-1-thread-1
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main awaiting termination
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SleepAndPrintTask[3] pool-1-thread-1
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main awaiting termination
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main awaiting termination
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SleepAndPrintTask[4] pool-1-thread-1
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main awaiting termination
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SleepAndPrintTask[5] pool-1-thread-1
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main awaiting termination
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SleepAndPrintTask[6] pool-1-thread-1
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main awaiting termination
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SleepAndPrintTask[7] pool-1-thread-1
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main awaiting termination
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SleepAndPrintTask[8] pool-1-thread-1
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main awaiting termination
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SleepAndPrintTask[9] pool-1-thread-1
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*/
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