A theater seating chart is implemented as a two-dimensional array of ticket pric

Question

A theater seating chart is implemented as a two-dimensional array of ticket prices like presented below. Write a program that prompts the users to pick either a seat or a price. Mark sold seats by changing the price to zero. When a user specifies a seat, make sure it is available. When a user specifies a price, find any seat with that price. Verify that the price is among those offered by the theater.

10 10 10 10 10 10 10 10 10 10
10 10 10 10 10 10 10 10 10 10
10 10 10 10 10 10 10 10 10 10
10 10 20 20 20 20 20 20 10 10
10 10 20 20 20 20 20 20 10 10
10 10 20 20 20 20 20 20 10 10
20 20 30 30 40 40 30 30 20 20
20 30 30 40 50 50 40 30 30 20
30 40 50 50 50 50 50 50 40 30

Explanation / Answer

import java.util.*;
public class Theater
{
   static Scanner in = new Scanner(System.in);
   static int[][] seatingChart;

   public static void main(String[] args)
   {
       seatingChart = new int[][] {
          { 10, 10, 10, 10, 10, 10, 10, 10, 10, 10 },
          { 10, 10, 10, 10, 10, 10, 10, 10, 10, 10 },
          { 10, 10, 10, 10, 10, 10, 10, 10, 10, 10 },
          { 10, 10, 20, 20, 20, 20, 20, 20, 10, 10 },
          { 10, 10, 20, 20, 20, 20, 20, 20, 10, 10 },
          { 10, 10, 20, 20, 20, 20, 20, 20, 10, 10 },
          { 20, 20, 30, 30, 40, 40, 30, 30, 20, 20 },
          { 20, 30, 30, 40, 50, 50, 40, 30, 30, 20 },
          { 30, 40, 50, 50, 50, 50, 50, 50, 40, 30 },
       };
       System.out.println("Welcome to the Box Office Program.");                //Introduction Statements
       System.out.println("Please note that seats are arranged such that");
       System.out.println("row 1, column 1, is the bottom front row.");
       System.out.println("Also, a zero denotes the seat is already sold.");
       printSeats(seatingChart);
       char response = 'Y';
       while ((response == 'Y') || (response == 'y'))
       {
       System.out.print("Pick by Seat <s>, Price <p>, or Quit <q>: ");
       char choice = in.next().charAt(0);
           switch (choice)
            {
               case'S':case's':
               { sellSeatByNumber(seatingChart);
                   break; }
               case'P':case'p':
               { sellSeatByPrice(seatingChart);
                   break; }
               case'Q':case'q':
               { System.out.print("Thank you, come again!");
                   System.exit(0); }
               default:
               { System.out.println("Error: Invalid choice."); }
            }
           System.out.print("Would you like to reserve another seat (Y/N)?: ");
        response = in.next().charAt(0);
       }
       System.out.print("Thank you, come again!");
       }

   public static void printSeats(int seatingChart[][])
   {
       for(int i=0; i<seatingChart.length; i++)
       {
           for(int j=0; j<seatingChart[i].length; j++)
           {
               if (j>0)
                   System.out.print(" ");
                   System.out.print(seatingChart[i][j]);
           }
           System.out.println();
       }
   }

public static void sellSeatByPrice(int seatingChart[][])
{
   System.out.print("Please enter a price for the seat you would like: ");
   int price = in.nextInt();
   // boolean found = false;
   out: for (int i=0;i<9;i++)
     for (int j=0;j<10;j++)
        if (seatingChart[i][j]==price)
        { seatingChart[i][j]=0; break out; } // Notice this change

    printSeats(seatingChart);

}
   public static void sellSeatByNumber(int seatingChart[][])
   {
       System.out.println("Enter a row, then enter a seat number.");
       System.out.print("What row would you like to sit on?:");
       int row = in.nextInt();
       row = Math.abs(row-9);
       System.out.print("What seat of that row would you like to sit in?:");
       int col = in.nextInt();
       col -= 1;
       if (seatingChart[row][col]!=0)
       {
           seatingChart[row][col] = 0;
           printSeats(seatingChart);
           System.out.println("Your seat has been reserved and reflected with a 0 on the chart now.");
       }
       else { System.out.println("Sorry, that seat is already taken."); }
   }
}

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