Java Program to convert temperature in kelvin to celsius and fahrenhiet

import java.io.*;
class CelsiusFahrenhiet
{
    public static void main (String args[]) throws IOException
    {
         double celsius, fahrenhiet, kelvin;
         BufferedReader br = new BufferedReader ( new InputStreamReader (System.in) );
         System.out.println ("Enter temperature in Kelvin");
         kelvin = Double.parseDouble ( br.readLine() );
         celsius = kelvin - 273.0;
         System.out.println ("\n" + kelvin + "K = "+ celsius + "C");
         fahrenhiet = (celsius * 9.0/5.0) + 32.0;
         System.out.println ("\n" + kelvin + "K = " + fahrenhiet +"F");
    }
}