Thread class methods isAlive(), join()

 Thread class methods isAlive(), join()

class NewThread implements Runnable{
    String name;
    Thread t;
    NewThread(String n){
        name = n;
        t = new Thread(this,name);
        System.out.println("Child: "+t);
        t.start();
    }
    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("Thread "+name+" Interrupted");
        }
        System.out.println(name+" Exiting");
    }
}
class AliveJoin {
    public static void main(String[] args){
        NewThread obj1 = new NewThread("One");
        NewThread obj2 = new NewThread("Two");
        NewThread obj3 = new NewThread("Three");
        System.out.println("Thread One is Alive: "+obj1.t.isAlive());
        System.out.println("Thread Two is Alive: "+obj2.t.isAlive());
        System.out.println("Thread Three is Alive: "+obj3.t.isAlive());
        try {
            System.out.println("Waiting for Threads");
            obj1.t.join();
            obj2.t.join();
            obj3.t.join();
        } catch (InterruptedException e) {
            System.out.println("Main Interrupted");
        }
        System.out.println("Thread One is Alive: "+obj1.t.isAlive());
        System.out.println("Thread Two is Alive: "+obj2.t.isAlive());
        System.out.println("Thread Three is Alive: "+obj3.t.isAlive());
    }
}