Thread Scheduler

 

Thread Scheduler

The thread scheduler is responsible for managing the execution of threads. The Java Virtual Machine (JVM) employs a preemptive, priority-based scheduling algorithm to determine which thread should run next. Threads with higher priority are scheduled to run before threads with lower priority.

Example 01:

package com.java.Multi_threading;

class MyThread extends Thread {

public MyThread(String name) {

super(name); // Set the thread name

}

public void run() {

for (int i = 1; i <= 5; i++) {

System.out.println(getName() + " - Priority: " + getPriority() + " - Count: " + i);

try {

Thread.sleep(100); // Sleep to simulate work and allow context switching

} catch (InterruptedException e) {

e.printStackTrace();

}

}

}

}

public class ThreadSchedulerExample {

public static void main(String[] args) {

// Create three threads with different priorities

MyThread t1 = new MyThread("Thread-1 (Low Priority)");

MyThread t2 = new MyThread("Thread-2 (High Priority)");

MyThread t3 = new MyThread("Thread-3 (Medium Priority)");

// Set thread priorities

t1.setPriority(Thread.MIN_PRIORITY); // Priority 1

t2.setPriority(Thread.MAX_PRIORITY); // Priority 10

t3.setPriority(Thread.NORM_PRIORITY); // Priority 5

// Start the threads

t1.start();

t2.start();

t3.start();

}

}