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Copy pathSimpleDaemons.java
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executable file
·45 lines (40 loc) · 1.79 KB
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package com.brianway.learning.java.concurrent;
import java.util.concurrent.TimeUnit;
/**
* Daemon threads don't prevent the program from ending.
*/
public class SimpleDaemons implements Runnable {
public void run() {
try {
while (true) {
TimeUnit.MILLISECONDS.sleep(100);
System.out.println(Thread.currentThread() + " " + this);
}
} catch (InterruptedException e) {
System.out.println("sleep() interrupted");
}
}
public static void main(String[] args) throws Exception {
for (int i = 0; i < 10; i++) {
Thread daemon = new Thread(new SimpleDaemons());
daemon.setDaemon(true); // Must call before start()
daemon.start();
}
System.out.println("All daemons started");
TimeUnit.MILLISECONDS.sleep(175);
}
}
/* Output: (Sample)
All daemons started
Thread[Thread-8,5,main] com.brianway.learning.java.concurrent.SimpleDaemons@1ec8f532
Thread[Thread-4,5,main] com.brianway.learning.java.concurrent.SimpleDaemons@17d10736
Thread[Thread-1,5,main] com.brianway.learning.java.concurrent.SimpleDaemons@2eec0173
Thread[Thread-0,5,main] com.brianway.learning.java.concurrent.SimpleDaemons@78f0e569
Thread[Thread-5,5,main] com.brianway.learning.java.concurrent.SimpleDaemons@572f3b73
Thread[Thread-6,5,main] com.brianway.learning.java.concurrent.SimpleDaemons@6c8d15b7
Thread[Thread-2,5,main] com.brianway.learning.java.concurrent.SimpleDaemons@31229a57
Thread[Thread-3,5,main] com.brianway.learning.java.concurrent.SimpleDaemons@4059e324
Thread[Thread-9,5,main] com.brianway.learning.java.concurrent.SimpleDaemons@32e39829
Thread[Thread-7,5,main] com.brianway.learning.java.concurrent.SimpleDaemons@45401023
...
*///:~