mainthread.java

public class Main_Thread
{
    public static void main(String args[])
    {
        Thread t = Thread.currentThread();
        System.out.println("Current thread: " + t);

        // change the name of the thread
        t.setName("My Thread");
        System.out.println("After name change: " + t);
        try
        {
            for(int n = 5; n > 0; n--)
            {
                System.out.println(n);  //print number with interval of 1 sec.
                Thread.sleep(1000);     //Thread is going to sleep for 1 sec.
            }
        }
        catch (InterruptedException e)
        {
            System.out.println("Main thread interrupted");
        }
    }
}