// **************************************************************************
// TuitionCalculator is a program that adds up tuition and fees
// based on user input. The entire program is a series of do-while statements
// that check for valid input, and nested if statements. A flag is set to false
// at the beginning of each loop and remains false until a valide entry is made
// and the loop is then exited. 
//
// Kelli Wiseth
// 17-July-2004
// Platform: 	Wintel [Windows 2000]
// JDK version:	JDK 1.4.1
// Time spent: ~ 20 hours
//******************************************************************************

import java.io.*;
import java.text.NumberFormat;

class TuitionCalculator {
    static final int GRAD_TUITION_UNIT_FEE=794;
    static final int GRAD_TUITION_FLAT_FEE=2499;
    static final int MAX_GRAD_UNITS=16;
    static final int UNDERGRAD_TUITION_UNIT_FEE=834;
    static final int UNDERGRAD_TUITION_FLAT_FEE=3419;
    static final int MAX_UNDERGRAD_UNITS=24;
    static final int STUDENT_HEALTH_SVS_FEE=133;
    static final int STUDENT_AID_FEE=98;
    static final int COMPUT_ACCOUNT_FEE=73;
    static final int LOCKER_FEE=43;
    static final int NEW_STUDENT_KIT_FEE=27;
    static final int TUTOR_SVC_FEE=45;
    static final int GGU_SWEAT_FEE=65;
    static final int PARKING_FEE=67;
    static final int ID_STORED_VALUE_CARD_FEE=47;
    
    public static void main (String args[]) throws IOException
    {
    BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
       
    String student_name, num_units, sweatshirt_size="none";
    char answer;
    boolean flag=false;
    boolean stored_value=false;
    boolean grad_student=false;
    boolean sweat=false;    
    int total_units=0;
    int id_card_value=0;
    int total_fees=(STUDENT_HEALTH_SVS_FEE + STUDENT_AID_FEE + COMPUT_ACCOUNT_FEE);
    int tuition=0;
    
        //Enter name
        
        System.out.print("Enter your name:   ");
        System.out.flush();
        student_name=stdin.readLine();

        flag=false; //reset flag to false before each entry-validation routine
        
        //check for graduate or undergraduate, and set graduate boolean for future use
        do
        {
        System.out.print("Are you a (g)raduate student, or an (u)ndergrad? Please enter g or u:   ");
        answer=stdin.readLine().charAt(0);
        if (((answer =='g') || (answer =='G')) || ((answer =='u') | (answer =='U')))
           flag=true;
        else
            System.out.println("The letter \'" + answer + "\' isn't a valid response. Please try again. ");
        } 
        while (flag==false);
        
        if (answer=='g' || answer=='G')
            grad_student=true;
       
        flag=false; //reset flag to false before each entry-validation routine

        
        do
      
        {     
        System.out.print("How many units would you like to take, " + student_name + "?   ");
        System.out.flush();
        total_units=Integer.parseInt(stdin.readLine());
        
        if (total_units <=0)
           {
           System.out.print("Sorry, " + student_name + ", please enter more than 0 units:   ");
           flag=false;
           }     
   
        if ((grad_student==false) && (total_units > MAX_UNDERGRAD_UNITS))
             {
             System.out.print("Sorry, " + student_name + ", " + total_units + " is too many units.\n " + 
             "Undergrads should take no more than " + MAX_UNDERGRAD_UNITS + " units;\n " + 
             "Please try again, but enter " + (total_units-MAX_UNDERGRAD_UNITS) + " fewer units. \n");
             flag=false;
             }
      

        if ((grad_student==true) && (total_units > MAX_GRAD_UNITS))
           {
           System.out.print("Sorry, " + student_name + ", " + total_units + " is too many units.\n " + 
           "Graduate students should take no more than " + MAX_GRAD_UNITS + " units;\n " + 
           "Please try again, but enter " + (total_units-MAX_GRAD_UNITS) + " fewer units. \n");
           flag=false;
           }


        if ((total_units>0) && (total_units <= MAX_UNDERGRAD_UNITS) && (!grad_student))
             {    
             if (total_units < 12)
                tuition = (total_units * UNDERGRAD_TUITION_UNIT_FEE);
             if ((total_units >=12) && (total_units <=18))
                tuition = UNDERGRAD_TUITION_FLAT_FEE;
             if (total_units > 18)
                tuition = (UNDERGRAD_TUITION_FLAT_FEE + ((total_units - 18) * UNDERGRAD_TUITION_UNIT_FEE));
             
             flag=true;
            }
    
        if ((total_units>0) && (total_units <= MAX_GRAD_UNITS) && (grad_student))
             {
             if (total_units < 8)
                   tuition = (total_units * GRAD_TUITION_UNIT_FEE);
             if ((total_units >=8) && (total_units <=12))
                  tuition = GRAD_TUITION_FLAT_FEE;
             if (total_units > 12)
                  tuition = (GRAD_TUITION_FLAT_FEE + ((total_units - 12) * GRAD_TUITION_UNIT_FEE));
             flag=true;             
             }
        }
        while (flag==false);

        flag=false; //reset flag to false before each entry-validation routine
        do
        {
        System.out.print("Do you want a locker? [(Y)es or (N)o]:  ");
        System.out.flush();
        answer=stdin.readLine().charAt(0);
        if (((answer =='y') || (answer =='Y')) || ((answer =='n') | (answer =='N')))
            flag=true;
        else
            System.out.println(answer + " isn't a valid response. Please try again. ");
        } 
        while (flag==false);
      
        if ((answer =='y') || (answer =='Y'))          
          total_fees = total_fees + LOCKER_FEE;

        flag=false; //reset flag to false before each entry-validation routine
        do
        {
        System.out.print("Do you want a new student kit? [(Y)es or (N)o]:   ");
        System.out.flush();
        answer=stdin.readLine().charAt(0);
        if (((answer =='y') || (answer =='Y')) || ((answer =='n') | (answer =='N')))
            flag=true;
        else
            System.out.println("The letter \'" + answer + "\' isn't a valid response. Please try again.  ");
        } 
        while (flag==false);
        
        if ((answer =='y') || (answer =='Y'))          
          total_fees=total_fees + NEW_STUDENT_KIT_FEE;
        
        flag=false; //reset flag to false before each entry-validation routine
        do
        {
        System.out.print("Do you want to register for the tutoring service? [(Y)es or (N)o]: ");
        System.out.flush();
        answer=stdin.readLine().charAt(0);
        if (((answer =='y') || (answer =='Y')) || ((answer =='n') | (answer =='N')))
            flag=true;
        else
            System.out.println(answer + " isn't a valid response. Please try again.  ");
        } 
        while (flag==false);
        
        if ((answer =='y') || (answer =='Y'))          
        total_fees = total_fees + TUTOR_SVC_FEE;
        
        
        flag=false; //reset flag to false before each entry-validation routine
        do
        {
        System.out.print("Would you like a university sweatshirt? [(Y)es or (N)o]:  ");
        System.out.flush();
        answer=stdin.readLine().charAt(0);
        if (((answer =='y') || (answer =='Y')) || ((answer =='n') | (answer =='N')))
            flag=true;
        else
            System.out.println("The letter \'" + answer + "\' isn't a valid response. Please try again. ");
        } 
        while (flag==false);
        
        flag=false; //reset flag to false before each entry-validation routine

        if ((answer =='y') || (answer =='Y'))
        {
        total_fees = total_fees + GGU_SWEAT_FEE;
        sweat=true;

        do //shouldn't get performed unless student wants a sweatshirt
        {
        System.out.print("Please choose a size [(S)mall, (M)edium, (L)arge]:  ");
        System.out.flush();
        answer=stdin.readLine().charAt(0);
        if ( ((answer =='s') || (answer =='S')) || ((answer =='m') || (answer =='M')) || ((answer=='l') || (answer=='L')))
            {
            flag=true;
                if ((answer == 's') || (answer == 'S'))
                    sweatshirt_size = "Small";
                if ((answer == 'm') || (answer == 'M'))
                    sweatshirt_size = "Medium";
                if ((answer == 'l') || (answer == 'L'))
                    sweatshirt_size = "Large";
            }
        else
            System.out.println("The letter \'" + answer + "\' isn't a valid response. Please try again. ");
        } 
        while (flag==false);
        }// end of sweatshirt if conditional with embedded do-loop for error checking     
        
        
        flag=false; //reset flag to false before each entry-validation routine
        do
        {
        System.out.print("Do you want a parking permit? [(Y)es or (N)o]:   ");
        System.out.flush();
        answer=stdin.readLine().charAt(0);
        if (((answer =='y') || (answer =='Y')) || ((answer =='n') | (answer =='N')))
            flag=true;
        else
            System.out.println("The letter \'" + answer + "\' isn't a valid response. Please try again. ");
        } 
        while (flag==false);
        
        if ((answer =='y') || (answer =='Y'))          
            total_fees = total_fees + PARKING_FEE;

        
        flag=false; //reset flag to false before each entry-validation routine
        do
        {
        System.out.print("Would you like to purchase the ID/Debit card? [(Y)es or (N)o]:  ");
        System.out.flush();
        answer=stdin.readLine().charAt(0);
        if (((answer =='y') || (answer =='Y')) || ((answer =='n') | (answer =='N')))
          flag=true;
        else
          System.out.println("The letter \'" + answer + "\' isn't a valid response. Please try again. ");
        } 
        while (flag==false);
        
        flag=false; //reset flag to false before each entry-validation routine
        if ((answer =='y') || (answer =='Y'))          
           {
                total_fees = total_fees + ID_STORED_VALUE_CARD_FEE;
                
                do
                {
                System.out.print("Do you want to add money to the card now? [(Y)es or (N)o]:  ");
                System.out.flush();
                answer=stdin.readLine().charAt(0);
                     if (((answer =='y') || (answer =='Y')) || ((answer =='n') | (answer =='N')))
                            flag=true;
                        else
                            System.out.println("The letter \'" + answer + "\' isn't a valid response. " +
                                " Please try again. ");
                } 
                while (flag==false);

               
                if ((answer =='y') || (answer =='Y'))          
                { 
                stored_value=true;
                do
                {
                System.out.print("In whole-dollar increments, how much money\n" +
                        " (up to $500) do you want to add to the ID card?   ");
                System.out.flush();
                id_card_value=Integer.parseInt(stdin.readLine());
                    if (id_card_value<=0)
                        System.out.println("Please enter a value greater than 0.");
                    if (id_card_value>500)
                        System.out.println("For security reasons, maximum value is $500. " +
                        "Please enter a value up to $500. ");
                }
                while (id_card_value<=0 || id_card_value>500);
                
                }//end of nested if for stored value amount

           }//end of overarching if branch for stored value card
     
     NumberFormat money = NumberFormat.getCurrencyInstance(); //object for formatting output
                
     System.out.println();
     System.out.println();
     System.out.println("-----------------------------------------------");
     System.out.println("Tuition and Fees Summary for: " + student_name);
     System.out.println("-----------------------------------------------");
     System.out.println("Summer Semester, 2004");
     System.out.println();
     System.out.println("Your tuition due is:    " + money.format(tuition));
     System.out.println("Total fees:             " + money.format(total_fees));
     if (stored_value)
       System.out.println("ID-Debit card value:    " + money.format(id_card_value));
     System.out.println("------------------------------------------------");
     System.out.println("Total due:              " + money.format(tuition + total_fees + id_card_value));
     System.out.println();
     if (sweat)
       System.out.println("Your sweatshirt, size " + sweatshirt_size + ", will arrive in a few days.");
     

    }//main method

}//TuitionCalculator class