Thread program with try catch in core java example

public class Ar {     public static void main(String[] args)     {         new x();         try         {             for (int i = 5; i > 0; i--)             {                 System.out.print("main thread" + i);                 Thread.sleep(1000);             }         } catch (InterruptedException e)         {             System.out.print(e);         }     } }