50 lines
1.3 KiB
Java
50 lines
1.3 KiB
Java
// concurrent/SingleThreadExecutor.java
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// (c)2017 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://OnJava8.com for more book information.
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import java.util.concurrent.*;
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import java.util.stream.*;
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import onjava.*;
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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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IntStream.range(0, 10)
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.mapToObj(NapTask::new)
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.forEach(exec::execute);
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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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new Nap(0.1);
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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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NapTask[0] pool-1-thread-1
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main awaiting termination
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NapTask[1] pool-1-thread-1
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main awaiting termination
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NapTask[2] pool-1-thread-1
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NapTask[3] pool-1-thread-1
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main awaiting termination
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main awaiting termination
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NapTask[4] pool-1-thread-1
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main awaiting termination
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NapTask[5] pool-1-thread-1
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NapTask[6] pool-1-thread-1
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main awaiting termination
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main awaiting termination
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NapTask[7] pool-1-thread-1
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main awaiting termination
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NapTask[8] pool-1-thread-1
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main awaiting termination
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NapTask[9] pool-1-thread-1
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*/
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