//  HeightToLightYears.java  Copyright (c) 2006 Kari Laitinen

//  http://www.naturalprogramming.com

//  2006-02-12   File created.
//  2006-02-12   Last modification.


//  This file is a solution to Exercise 5-6.


import java.util.* ;

class HeightToLightYears
{
   public static void main( String[] not_in_use )
   {
      Scanner keyboard = new Scanner( System.in ) ;

      double  height_in_centimeters, height_in_light_years ;

      System.out.print( 
            "\n This program converts your height to light years." 
         +  "\n Please, enter your height in centimeters:  " ) ;

      height_in_centimeters  =  keyboard.nextDouble() ;

      height_in_light_years  =  height_in_centimeters /
                       ( 2.99793e8 * (( 365 * 24 ) + 6 ) * 3600 * 100 ) ;

      System.out.printf( "\n  Your height in light years is %15.5e \n",
                                                 height_in_light_years ) ;
   }
}