/*
      Program:     4.3
      Programmer:  Brad Shedd
      Date:        May 10, 2006
      File:        Tuition.java
      Purpose:     Calculates tuition and fees for their students.
*/

import java.io.*;
import java.text.DecimalFormat;
import javax.swing.JOptionPane;

public class Tuition
{
   public static void main(String[]arg)
   {
      //declare variables
      int hours;
      double fees, rate, tuition;

      //method calls
      displayWelcome();
      hours = getHours();
      rate = getRate(hours);
      tuition = calcTuition(hours, rate);
      fees = calcFees(tuition);
      displayTotal(tuition + fees);
      finish();
   } // end main
   public static void displayWelcome()
   {
      JOptionPane.showMessageDialog(null, "Welcome to the Tuition Program","Welcome",JOptionPane.PLAIN_MESSAGE);
   } // end displaywelcome
   public static int getHours()
   {
      // declare method variables
      int hours = 0;
      boolean done = false;

      // loop while not done
      while (!done)
      {

         String strHours = JOptionPane.showInputDialog(null,"Enter the total amount of hours, or click Cancel to exit:");

         if (strHours == null) finish();

         try
         {
            hours = Integer.parseInt(strHours);
            if (hours <= 0) throw new NumberFormatException();
            else done = true;
         }
         catch(NumberFormatException e)
         {
            JOptionPane.showMessageDialog(null,"Your entry was not in the proper format.","Error",JOptionPane.INFORMATION_MESSAGE);
         }
      }

      return hours;
   } // end gethours
   public static double getRate(int hours)
   {
      double rate;

      if (hours > 15) rate = 50.00;
      else rate = 44.50;

      return rate;
   } // end getRate
   public static double calcTuition(int hours, double rate)
   {
      double tuition;

      tuition = rate * hours;

      return tuition;
   } // end calcTuition
   public static double calcFees(double tuition)
   {
      double fees;

      fees = tuition * 0.08;

      return fees;
   } // end calcFees
   public static void displayTotal(double total)
   {

      DecimalFormat twoDigits = new DecimalFormat("$###0.00");

      System.out.println();
      System.out.println("\tYour total is: " + twoDigits.format (total) +".");
      System.out.println();
   } // end dispalyTotal
   public static void finish()
   {
   System.exit(0);
   }
} // end Tuition

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