[Java] Thread Priority

Thread Priority

- Each thread have a priority

- Thread schedular schedules the threads according to their priority(preemptive scheduling)

1. 3 constants defined in Thread

- public static int MIN_PRIORITY

- public static int NORM-PRIORITY

- public static int MAX-PRIORITY

- Default is 5(NORM), MIN is 1, MAX is 10

2. Example

public class priority extends Thread{ public void run(){ System.out.println("running thread name:"+Thread.currentThread().getName()); System.out.println("running thread priority:"+Thread.currentThread().getPriority()); } public static void main(String[]args){ priority t1 = new priority(); priority t2 = new priority(); t1.setPriority(Thread.MIN_PRIORITY); t2.setPriority(Thread.MAX_PRIORITY); t2.start(); t1.start(); } }