/**
 * Weight Calculator > BufferedReaderInput.java 
 *
 * Displays a table of calculated weights on Jupiter using the console
 * for both input and output.
 * 
 * @author  Dale Reed
 */

import java.io.*;   // used for Buffered Reader console input

public class  BufferedReaderInput {
    
    public static void main(String[] args) throws IOException {
            
        // variable declarations
        double earthWeight = 100.0;         // weight on the earth, declared and initialized
        double weightMultiplier = 2.628099173553719;     
                                            // factor for finding Jupiter weight given earth's
        // create the buffered reader 
        BufferedReader reader = new BufferedReader(
                                new InputStreamReader(System.in) );
        
        // Prompt for and get the weight on earth, using console input
        System.out.print( "Enter your weight on earth: " );
        String userInput = reader.readLine();
        // Now convert the input string into a numerical value
        earthWeight = Double.parseDouble( userInput);
        
        // display weight on Jupiter
        double jupiterWeight = earthWeight * weightMultiplier;
        System.out.print( "If on earth you weigh " + earthWeight + ", ");
        System.out.println( "then on Jupiter you weigh " + jupiterWeight );
      }    
}

/* Output:

Enter your weight on earth: 220
If on earth you weigh 220.0, then on Jupiter you weigh 578.1818181818182

*/