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How will you make a user thread into daemon thread if it has already started?

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Pragya Keshap answered on February 4, 2023 Popularity 2/10 Helpfulness 1/10

answer How will you make a user thread into daemon thread if it has already started?

How will you make a user thread into daemon thread if it has already started?

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No. We cannot make a user thread to daemon thread once it has

already started.

If we do it by calling setDaemon(), it will throw

IllegalThreadStateException

public class DaemonThread extends Thread
{
    public void run()
    {
        System.out.println("Thread name: " + Thread.currentThread().getName());
        System.out.println("Check if its DaemonThread: "
                        + Thread.currentThread().isDaemon());
    }
  
    public static void main(String[] args)
    {
        DaemonThread t1 = new DaemonThread();
        DaemonThread t2 = new DaemonThread();
        t1.start();
          
        // Exception as the thread is already started
        t1.setDaemon(true);
          
        t2.start();
    }
}

https://www.geeksforgeeks.org/daemon-thread-java/

Popularity 2/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: daemon java user-thread

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Contributed on Feb 04 2023

Pragya Keshap

0 Answers Avg Quality 2/10

How will you make a user thread into daemon thread if it has already started?

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