As quickly because the final non-daemon thread is completed JVM terminates regardless of what number of Daemon threads exist or working inside JVM. On this java thread tutorial, we’ll see examples of Daemon threads in Java and a few extra variations between Daemon and non-daemon threads.
Necessary factors about Daemon threads in Java
2. Thread.setDaemon(true) makes a Thread daemon however it could actually solely be referred to as earlier than beginning Thread in Java. It should throw IllegalThreadStateException if the corresponding Thread is already began and working.
3. Daemon Threads are appropriate for doing background jobs like housekeeping, Although I’ve but to make use of it for any sensible goal in utility code. tell us if in case you have used daemon thread in your java utility for any sensible goal.
Distinction between Daemon and Non-Daemon thread in Java
listed here are a few variations between daemon and person thread in Java:
2) Daemon Thread is handled in a different way than Consumer Thread when JVM terminates, lastly, blocks usually are not referred to as, Stacks usually are not unwounded and JVM simply exits.
And, in case you want extra variations, here’s a good desk which reveals all of the distinction between a daemon thread and a standard thread in Java:
Daemon Thread Instance in Java
Here’s a code instance of a daemon thread in java. we make a person thread daemon by calling setDaemon(true) and each time you run you will note a variable variety of print statements associated to “daemon thread is working” you’ll by no means see print assertion written in lastly block as a result of lastly is not going to be referred to as.
public static void primary(String args[]){
Thread daemonThread = new Thread(new Runnable(){
@Override
public void run(){
attempt{
whereas(true){
System.out.println(“Daemon thread is working”);
}
}catch(Exception e){
}lastly{
System.out.println(“Daemon Thread exiting”); //by no means referred to as
}
}
}, “Daemon-Thread”);
daemonThread.setDaemon(true); //making this thread daemon
daemonThread.begin();
}
Output:
Daemon thread is working
Daemon thread is working
Daemon thread is working
Daemon thread is working
Daemon thread is working
Daemon thread is working
Daemon thread is working
Daemon thread is working
That’s all on What’s Daemon Thread in Java and the distinction between Daemon and non-daemon thread in Java with code instance of Daemon thread in Java. JVM additionally makes use of daemon thread for Rubbish assortment.
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