Is it possible to set or change the thread priority?

Yes, in Java, you can set or change the thread priority using the methods setPriority(int newPriority) and get the current priority with getPriority(). Thread priorities are integers ranging from Thread.MIN_PRIORITY (1) to Thread.MAX_PRIORITY (10), with Thread.NORM_PRIORITY (5) being the default value.

Example:

Thread thread = new Thread(() -> {
    // thread code
});
thread.setPriority(Thread.MAX_PRIORITY); // set maximum priority
thread.start();

It is important to understand that thread priorities are only a suggestion to the OS scheduler, and their influence on the execution order of threads depends on the specific JVM implementation and operating system.