import java.util.Scanner;

/** @author R. McCloskey
**  @version Sept. 5, 2007
**
** Java application that tosses a TossableFairCoin object a specified
** number of times and displays the result each time.  The number
** of tosses may be provided via a command line argument.
** If no such argument is provided, the user is prompted to enter
** this number.
*/


public class TossableFairCoinTester {

   public static void main(String[] args) { 

      String strReps;
      int numTosses;

      /* Establish the value of numTosses, either via the command line
      ** argument (if present) or by prompting the user to key in the value.
      */
      if (args.length > 0) {   // command line arg indicates # of coin tosses
         numTosses = Integer.parseInt(args[0]);
      }
      else {  // prompt user to enter # of coin tosses
         System.out.print("Enter number of times to toss the coin:");
         Scanner s = new Scanner(System.in);
         numTosses = s.nextInt();
      }

      /* Create a coin and toss it the prescribed # of times, each time
      ** reporting the result.
      */
      TossableFairCoin c = new TossableFairCoin();
      for (int i=0; i != numTosses; i++) {
         c.toss();
         System.out.println(c.toString());
      } 

      // Report the number of times heads and tails were tossed, respectively.
      System.out.println();
      System.out.println("Heads tossed " + c.numHeadsTossed() + " times.");
      System.out.println("Tails tossed " + c.numTailsTossed() + " times.");
      assert numTosses == c.numTimesTossed() : "WARNING: Toss count wrong!";
   }
   
}