Better Documentation for this codes

[doran_lum]

I feel i can put in better documentation for this codes. Could anyone be able to assist what could be missing ?

import java.util.ArrayList; //Import Array List
import java.util.Scanner; //Import scanner
 
//2 diemension Array
    public class Project {
        final int rows = 7, cols = 4;
        char[][] seats = new char[rows][cols];
        ArrayList<String> reservedSeats = new ArrayList<String>();
 
        public static void main(String[] args) {
            Project q = new Project();
            q.buildSeats();
            q.printSeats();
            System.out.println("Enter Seat numbers:");
            Scanner scan = new Scanner(System.in);
            while (scan.hasNext()) {
                String s = scan.next();
                int row = Integer.parseInt(s.toUpperCase().substring(0, 1));
                char col = s.toUpperCase().charAt(1);
                q.reserveSeat(row, col);
            }
}
 
    public void buildSeats() {
        char seatLetter = 'A';
        for (int i = 0; i < seats.length; i++) {
            for (int j = 0; j < seats[i].length; j++)
            seats[i][j] = seatLetter++;
            seatLetter = 'A';
        }
}
 
    public void printSeats() {
        System.out.println("Available Seats:");
        for (int i = 0; i < seats.length; i++) {
            System.out.print((i + 1) + " ");
            for (int j = 0; j < seats[i].length; j++)
            System.out.print(seats[i][j] + " ");
            System.out.println();
        }
}
 
//checks if the seat is available for selection
    public void reserveSeat(int row, char col) {
        String seatNo=String.valueOf(row)+col;
        if (checkAvailability(seatNo)) {
            reservedSeats.add(seatNo);
            for (int i = row - 1; i == row - 1; i++) {
                for (int j = 0; j < seats[i].length; j++) {
                    if (seats[i][j] == col) {
                        seats[i][j] = 'X';
                    }
                }
}
    System.out.println(" Seat " + seatNo + " is Reserved ");
}
    else
    System.out.println("Sorry! The Seat "+seatNo+" is NOT available.Please look up for another seat.");
    printSeats();
}
 
    public boolean checkAvailability(String seatNo) {
        boolean available = true;
        for(int i=0;i<reservedSeats.size();i++){
            if(reservedSeats.get(i).equalsIgnoreCase(seatNo)){
                available = false;
            }
        }
        return available;
    }
}

[KevinWorkman]

What exactly do you want us to do?

[doran_lum]

Could you help to explain the codes better ? I'm trying to understand how this booking system works

I know it uses 2D array to get the seats and then awaits for user to enter the seats it wants and react accordingly

[Tolls]

Ask whoever wrote it?

[doran_lum]

I would love it but I'm not too sure who's the author.. just trying to figure out this theatre seatings code

[KevinWorkman]

I would love it but I'm not too sure who's the author.. just trying to figure out this theatre seatings code

What about it don't you understand? I suggest you step through it with a debugger, or at the very least use some print statements, to help you better understand what the program is doing.