import java.io.PrintWriter;
import java.io.BufferedReader;
import java.io.InputStreamReader;
/**
 * Test the fascinating Rational numbers we're developing.
 */
public class TestRational
{
  public static void main(String[] args)
  {
    // Prepare input and screenput.
    BufferedReader keyboard = 
      new BufferedReader(new InputStreamReader(System.in));
    PrintWriter screen = new PrintWriter(System.out, true);

    // Some simple tests.
    screen.println("Rationals Created as Fractions");
    Rational a = new Rational(3,241*18);
    Rational b = new Rational(241,12);
    screen.println("a = " + a + " (or " + a.doubleValue() + ")");
    screen.println("b = " + b + " (or " + b.doubleValue() + ")");
    screen.println("Product of a and b");
    Rational c = Rational.multiply(a,b);
    screen.println("c = " + c + " (or " + c.doubleValue() + ")");
    screen.println("***********************************************");
    screen.println("Some rationals created from reals.");
    testReal(0.5f, screen);
    testReal(0.3333f, screen);
    testReal(1000000.5f, screen);
    testReal(.000000001f, screen);
    screen.println("***********************************************");
    testString("267/900", screen);
    testString("1/2", screen);
    testString("900/267", screen);
    testString("100/5", screen);
    testString("123", screen);

    // That's it, we're done.
    System.exit(0);
  } // main(String[])

  public static void testReal(float f, PrintWriter screen) {
    Rational rat = new Rational(f);
    screen.println(f + " -> " + rat + " = " + rat.doubleValue());
  } // testReal(Float, PrintWriter)

  public static void testString(String s, PrintWriter screen) {
    Rational rat = new Rational(s);
    screen.println(s + " -> " + rat);
  }
} // class TestRational