Thread Priority

 

Thread Priority

Thread priority is a mechanism used in operating systems to determine the order in which threads are executed. It influences how much CPU time a thread receives relative to other threads.

•        Each thread has a priority.

•        Priorities are represented by a number between 1 and 10.

3 constants defined in Thread class:

public static int MIN_PRIORITY

public static int NORM_PRIORITY

public static int MAX_PRIORITY

Default priority of a thread is 5 (NORM_PRIORITY). The value of MIN_PRIORITY is 1 and the value of MAX_PRIORITY is 10.

Example 01:

package com.java.Multi_threading;

class PriorityExample {

public static void main(String[] args) {

Thread thread1 = new Thread(new MyRunnable(), "Thread 1");

Thread thread2 = new Thread(new MyRunnable(), "Thread 2");

// Set priorities

thread1.setPriority(Thread.MIN_PRIORITY);

thread2.setPriority(Thread.MAX_PRIORITY);

// Start the threads

thread1.start();

thread2.start();

}

}

class MyRunnable implements Runnable {

@Override

public void run() {

for (int i = 0; i < 5; i++) {

System.out.println(Thread.currentThread().getName() + " - Count: " + i);

Thread.yield(); // Allowing the scheduler to switch between threads

}

}

}