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Showing content from https://www.tutorialspoint.com/javaexamples/thread_getpri.htm below:

How to get the priorities of running threads in Java

How to get the priorities of running threads?

Following example prints the priority of the running threads by using setPriority() method .

public class SimplePriorities extends Thread {
   private int countDown = 5;
   private volatile double d = 0; 
   public SimplePriorities(int priority) {
      setPriority(priority);
      start();
   }
   public String toString() {
      return super.toString() + ": " + countDown;
   }
   public void run() {
      while(true) {
         for(int i = 1; i < 100000; i++) d = d + (Math.PI + Math.E) / (double)i;
         System.out.println(this);
         if(--countDown == 0) return;
      }
   }
   public static void main(String[] args) {
      new SimplePriorities(Thread.MAX_PRIORITY);
      for(int i = 0; i < 5; i++)
      new SimplePriorities(Thread.MIN_PRIORITY);
   }
} 

The above code sample will produce the following result.

Thread[Thread-0,10,main]: 5
Thread[Thread-0,10,main]: 4
Thread[Thread-0,10,main]: 3
Thread[Thread-0,10,main]: 2
Thread[Thread-0,10,main]: 1
Thread[Thread-1,1,main]: 5
Thread[Thread-1,1,main]: 4
Thread[Thread-1,1,main]: 3
Thread[Thread-1,1,main]: 2
Thread[Thread-1,1,main]: 1
Thread[Thread-2,1,main]: 5
Thread[Thread-2,1,main]: 4
Thread[Thread-2,1,main]: 3
Thread[Thread-2,1,main]: 2
Thread[Thread-2,1,main]: 1
.
.
.

java_threading.htm

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