Java - Class And Object

class test1                                // test1 is class name
 {
   int nou;
   String nam;
   String str;
   String pla;
   int pin;
   public static void main(String arg[])
    {
       test1 t;                            // t is object
         t = new test1();
         t.nou  = 101;
         t.nam =  "Vivekanadhar";
         t.str   =  "Dubai Main Road";
         t.pla  =  "Dubai";
         t.pin =   600001;
         System.out.println("Number  :"+t.nou);
         System.out.println("Name     : "+t.nam);
         System.out.println("Street     : "+t.str);
         System.out.println("Place      :"+t.pla);
         System.out.println("PinCode :"+t.pin);
    }
 }