package rebelsky.fractions;

import java.io.PrintWriter;
import java.io.InputStreamReader;
import java.io.BufferedReader;

/**
 * A simple calculator.  Reads in two fractions and prints their
 * sum and product.
 *
 * @author Samuel A. Rebelsky
 * @version 1.0 of September 2005
 */
public class Calculator
{
  // +------+--------------------------------------------------------------
  // | Main |
  // +------+

  public static void main(String[] args)
    throws Exception
  {
    // Prepare for input and output
    PrintWriter pen = new PrintWriter(System.out, true);
    BufferedReader eyes = new BufferedReader(new InputStreamReader(System.in));

    // Read the two fractions.
    pen.print("Please enter a fraction of the form 'num/denom': ");
    pen.flush();
    Fraction f1 = new Fraction(eyes.readLine());
    pen.print("Please enter another fraction of the form 'num/denom': ");
    pen.flush();
    Fraction f2 = new Fraction(eyes.readLine());

    // Print the results
    pen.println(f1 + " + " + f2 + " = " + f1.add(f2));
    pen.println(f1 + " * " + f2 + " = " + f1.multiply(f2));
  } // main(String[])

} // class Calculator