Thread: Theatre Seating- program compiles but doesn't work the way it is supposed to

This code for my class is supposed to use a 2D array to:
-display an array of seats and ticket prices
-prompt the user to enter a seat number or price
-mark sold seats with the 0
-determine if a user specified seat is available
-when a user enters a price, show all seats of that price

I wrote most the code and as far as I can tell it should work fine. It compiles but when I run it:

If user chooses to enter the row and seat numbers:
-seat selection is off lower left hand corner is not 1,1 (how do I set that up?)
-mix of symbols, numbers, and characters for displayed seat number and row
-takes user back to the menu whether they enter y or n

If user chooses to enter the price:
-same 3 problems as above
-when i enter the desired price no seats or rows come up
-if i continue anyways and enter the seat number and row number (1,1) it says the seat is unavailable, otherwise it says the seats are available

We only just learned how to use 2D arrays today and this is due Friday. Any help will be greatly appreciated. (Please try to be as simple as possible I'm new to Java )

import java.util.Scanner;   public class TheatreSeating {	public static void main(String[] args) {   //displays the seating including which seats are avalaible  	int[][] seatingPrices = {{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}};  	for(int row=0; row<seatingPrices.length; row++) {	for(int col = 0; col<seatingPrices[row].length; col++){	System.out.print(seatingPrices[row][col] + " ");  	}	System.out.println();	System.out.println();	}  	System.out.println("The seating and corresponding prices are show above. Seats with the price of $0 are not available.");    	menu(seatingPrices);     } //shows menu and runs through program	public static void menu(int[][]seatingPrices) {  	Scanner sc = new Scanner(System.in);	//creates user entered row, seat, and price variables for selection	int row = 0;	int seat = 0;	int price = 0;	int choice;  	do { //do while loop runs menu until user enters designated number  	System.out.print("1: Enter Desired Row and Seat Number\n2: Enter Desired Price\n3: Finish\n");	choice = sc.nextInt();  	switch(choice) {	case 1:	//get user selection for row and seat number	System.out.println("Please make your selection (the bottom left corner is row 1, seat 1). Enter the row number.\n");	row = sc.nextInt();	System.out.println();	System.out.println("Enter the seat number");	seat = sc.nextInt();  	boolean sA = seatAvailable(seatingPrices, row, seat); //calls seatAvailable method	if(sA == true) {	boolean toPur = purchase(seatingPrices, row, seat); //calls purchase method	if(toPur = true) {	seatingPrices = changeAvailability(seatingPrices, row, seat); //calls changeAvailability method	String purchaseTotal = totalPrice(seatingPrices, row, seat); //calls purchaseTotal method	}	else {	menu(seatingPrices);	}  	}	else {	System.out.println("This seat is not available");	menu(seatingPrices);	}  	break;	case 2:	//gets user desired price	System.out.println("Enter the desired price");	price = sc.nextInt();  	showAvailableSeatsByPrice(seatingPrices, price); //calls showAvailableSeatsByPrice method  	System.out.println("Enter your row and seat selections");	row = sc.nextInt();	seat = sc.nextInt();  	sA = seatAvailable(seatingPrices, row, seat);	if(sA == true) {	boolean toPur = purchase(seatingPrices, row, seat);	if(toPur = true) {	seatingPrices = changeAvailability(seatingPrices, row, seat);	String purchaseTotal = totalPrice(seatingPrices, row, seat);	}	else {	menu(seatingPrices);	}	}	else {	System.out.println("This seat is not available\n");	menu(seatingPrices);	}  	break;	}	}while(choice != 3);	System.exit(0);	}  	/*The seatAvailable method determines if a seat is available or not based on price $0=unavailable	@param seatingPrices holds the seatingPrices array	@param r holds the selected row number	@param s holds the selected seat number	*/	public static boolean seatAvailable(int[][] seatingPrices, int r, int s) {	//determines if seat selected by user is available  	if(seatingPrices[r][s] != 0) {	return true;	}	else {	return false;	}	}  	/*The showAvailableSeatsByPrice method shows seats that are the price the user entered	@param seatingPrices holds the seatingPrices array	@param p holds the price entered by the user	@return seats of user entered price	*/	public static String showAvailableSeatsByPrice(int[][] seatingPrices, int p) {	//show seats that are user-entered price	String sASBP= " ";	boolean status;  	System.out.println("Seats that match price:\n");	for(int row=0; row<seatingPrices.length; row++) { //searches array for matching prices	for(int seat = 0; seat<seatingPrices[row].length; seat++){	if(seatingPrices[row][seat] == p) {	status = true;	}	else {	status = false;	}	if(status == true) {	sASBP = "Available seat of price: " + seatingPrices[row][seat] + " (Row and Seat respectively)";	}	}	}	return sASBP;	}  	/*The totalPrice method shows the user how much they purchased their ticket for	@param seatingPrices holds the seatingPrices array	@param r holds the row entered by the user	@param s holds the seat entered by the user	@return total price of user's ticket	*/	public static String totalPrice(int[][] seatingPrices, int r, int s) {	int p = seatingPrices[r][s];	String totalPrice = " Your purchase amount is " + p;	return totalPrice;	}  	/*The changeAvailability method changes the array to reflect new availability data	@param seatingPrices holds the seatingPrices array	@param r holds the row entered by the user	@param s holds the seat entered by the user	@return changed array for availability	*/	public static int[][] changeAvailability(int[][] seatingPrices, int r, int s) {	//changes seat availabilty if the user purchases the ticket selection	seatingPrices[r][s] = 0;	return seatingPrices;	}  	/*The purchase method determines if a user wants to buy the selected ticket	@param seatingPrices holds the seatingPrices array	@param r holds the row entered by the user	@param s holds the seat entered by the user	@return user's decision to buy the ticket or not	*/	public static boolean purchase(int[][]seatingPrices, int r, int s){	//determines if user wants to purchase the selected seat	Scanner sc = new Scanner(System.in);  	String purC;	boolean stat = true;  	System.out.println("Would you like to purchase seat " + seatingPrices[s] + " in row " + seatingPrices[r] + " for $" + seatingPrices[r][s] + "?");	System.out.println("Enter Y for yes or N for no");	purC = sc.next();  	if(purC.equalsIgnoreCase("y")) {	stat = true;	}	else if(purC.equalsIgnoreCase("n")) {	stat = false;	}	return stat;	}	}

The seat selection problem is probably occuring since Arrays start at 0,1,2,3..ect so the lower left hand corner is probably row 0 column 0 as for your other problems I am a beginner myself and i dont know what to do either. I actually have this same problem coming up in my book. so if you get it correct please notify me somehow.

As Richmond said, arrays start a 0, so to compensate just subtract 1 from your row and seat if the user inputs a number corresponding to 1, 1 in top left corner.

Wow I just noticed that this was posted in Febuary >.>

Originally Posted by Tjstretch

Wow I just noticed that this was posted in Febuary >.>

Lol I had no idea either, i just noticed that I have this exact problem coming up so i decided to try and see what it looked like