Daemon threads don't prevent the program from ending.

 

//: c13:SimpleDaemons.java
// Daemon threads don't prevent the program from ending.
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// www.BruceEckel.com. See copyright notice in CopyRight.txt.

public class SimpleDaemons extends Thread {
  public SimpleDaemons() {
    setDaemon(true); // Must be called before start()
    start();
  }
  public void run() {
    while(true) {
      try {
        sleep(100);
      } catch (InterruptedException e) {
        throw new RuntimeException(e);
      }
      System.out.println(this);
    }
  }
  public static void main(String[] args) {
    for(int i = 0; i < 10; i++)
      new SimpleDaemons();
  }
} ///:~

1.	Create a thread by implementing Runnable.
2.	Create a thread by extending Thread.
3.	Thread Reminder
4.	Thread Race Demo
5.	Suggesting when to switch threads with yield()
6.	Creating threads with inner classes
7.	The safe way to stop a thread
8.	Calling sleep() to wait for a while
9.	Understanding join()
10.	Daemon threads spawn other daemon threads
11.	Shows the use of thread priorities.
12.	Java new feature: threading
13.	Java 1.5 (5.0) new feature: Thread Schedule
14.	Two simple threads
15.	Simple threads creator
16.	Task
17.	SimpleThread using the Runnable interface.
18.	Very simple Threading example.
19.	Test Override Thread
20.	Test Override
21.	Parallelizing Loops for Multiprocessor Machines
22.	Listing All Running Threads in a group
23.	Setting priorities on the Thread objects
24.	Thread priorities.
25.	Use a ThreadGroup.
26.	Three Threads Test

Daemon threads don't prevent the program from ending. : Simple Threads « Threads « Java

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