import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.InputMismatchException;
import java.util.NoSuchElementException;
import java.util.Scanner;

/**
* @author
* @version
*/
public class BusSeatPlan
{
public final static int FIRST_BUSINESS_CLASS_ROW = 1;
public final static int LAST_BUSINESS_CLASS_ROW = 5;
public final static int NUM_OF_ROWS = 25;
public final static int NUM_OF_SEATS_PER_ROW = 4;
private ArrayList<BusSeat> seats; // keeps all seat objects

public BusSeatPlan()
{
   this.seats = new ArrayList<BusSeat>();
   this.initializeSeatPlan();
}

private void initializeSeatPlan()
{
   System.out.println("---> adding BusSeatBusinessClass objects to this.seats");
   for (int row = FIRST_BUSINESS_CLASS_ROW; row <= LAST_BUSINESS_CLASS_ROW; row++) {
         for (int seat = 0; seat < NUM_OF_SEATS_PER_ROW; seat++) {
            char rowLetter = (char)('A' + seat);
            this.seats.add(new BusSeatBusinessClass(row, rowLetter));
         }
   }
   System.out.println("---> adding BusSeatEconomyClass objects to this.seats");
   for (int row = LAST_BUSINESS_CLASS_ROW + 1; row <= NUM_OF_ROWS; row++) {
         for (int seat = 0; seat < NUM_OF_SEATS_PER_ROW; seat++) {
            char rowLetter = (char)('A' + seat);
            this.seats.add(new BusSeatEconomyClass(false, row, rowLetter));
         }
   }
}

public void applyTakenSeatsFromFile(Scanner fromFile)
{
   while (fromFile.hasNextLine()) {
         String line = fromFile.nextLine();
         String[] params = line.split("\\s+");
         if (params.length >= 2) {
            int row = Integer.parseInt(params[0]);
            char rowLetter = params[1].charAt(0);

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