java - How to manipulate all active threads in a JavaFX application -

system.out.println(thread.activecount()); prints number of active threads.

right start application, says running 6 threads. how 1 go manipulate (say, priority of) these threads?

putting system.out.println(thread.currentthread().getname()) in code prints javafx application thread.

you can use enumerate method of thread class. allow threads of thread group , copy them array.

a working example

import javafx.application.application; import javafx.stage.stage;  public class threaddemo extends application {      public static void main(string[] args) {         launch(args);     }      @override     public void start(stage stage) throws exception {         int count = thread.activecount();         system.out.println("currently active threads = " + count);          thread th[] = new thread[count];         // returns number of threads put array         thread.enumerate(th);          // set priority         (int = 0; < count; i++) {             // priority 0 not allowed             th[i].setpriority(i + 1);             system.out.println(i + ": " + th[i] + " has priority of "                     + th[i].getpriority());         }          // check if change in priority reflected         system.out.println("current thread " + thread.currentthread().getname()                 + " priority " + thread.currentthread().getpriority());     } }