// this introduces variables
// and the while control construct.

// a variable has a name and a type.
// in this example, the variable has name i and as type int.




class Boom 
{
   public static
   void main( String [] args )
   {
      int i = 10 ;
      while ( i>0 )
      {
         System.out.println(i) ;
         i = i - 1 ;
      }
      System.out.println("Boom!") ;
   }

}