Thread: isAlive()
class NewThread implements Runnable { String name; // name of thread Thread t; NewThread(String threadname) { name = threadname; t = new Thread(this, name); System.out.println("New thread: " + t); t.start(); // Start the thread } public void run() { try { for (int i = 5; i > 0; i--) { System.out.println(name + ": " + i); Thread.sleep(1000); } } catch (InterruptedException e) { System.out.println(name + " interrupted."); } System.out.println(name + " exiting."); } } class DemoJoin { public static void main(String args[]) { NewThread ob1 = new NewThread("One"); System.out.println("Thread One is alive: " + ob1.t.isAlive()); } }