Threads

The Thread Class The Thread class in Java provides a direct way to create and manage threads. It belongs to the java.lang package and provides various methods to control thread behavior. Creating a Thread Using Thread Class To create a thread using the Thread class, extend it and override its run() method. class MyThread extends Thread { public void run() { System.out.println("Thread is running."); } } public class Main { public static void main(String[] args) { MyThread t1 = new MyThread(); t1.start(); // starts the thread } } Important Methods in Thread Class Method Description start() Starts the thread. run() Contains the code executed by the thread. sleep(ms) Puts thread to sleep for specified time. join() Waits for a thread to die. isAlive() Checks if the thread is still running. setName() Sets the thread’s name. getName() Returns the thread’s name. Example with Sleep and Join class MyThread extends Thread { public void run() { try { Thread.sleep(500); System.out.println("Thread " + Thread.currentThread().getName() + " running."); } catch (InterruptedException e) { System.out.println("Interrupted"); } } } public class Main { public static void main(String[] args) throws InterruptedException { MyThread t1 = new MyThread(); t1.setName("Worker1"); t1.start(); t1.join(); // Waits for t1 to finish System.out.println("Main thread finished."); } } Thread Priorities Java threads have priorities that help the thread scheduler decide when each thread should run. ...