he i made a simple reservation system please help me with code on how i can cancel a reservation
import java.util.Scanner;
import java.util.Date;
public class reservation {
// Create an array of 12 seats, 6 window and 6 aisle.
private static int[] seats = new int[12];
public static void main(String args[]) {
System.out.println("Welcome to the saintb's reservation system!");
System.out.println();
// Lets start by setting all seats equal to 0 ( Empty)
for (int i = 0; i < 12; i++) {
seats[i] = 0;
}
// Setup our scanner and default the choice to firstclass.
Scanner s = new Scanner(System.in);
int choice = 1;
// Ask user for a window or an aisle seat and store their choice.
System.out.print("Please enter 1 for firstclass, 2 for economy, or 0 to exit: ");
choice = s.nextInt();
// While their choice is not the one for exit, execute our booking.
while (choice != 0) {
int seatnumber = 0;
// If they chose a Firstclass seat, attempt to book it.
if (choice == 1) {
seatnumber = bookFirstclass();
// No first class seats available, try booking an Economy seat for them instead.
if (seatnumber == -1) {
seatnumber = bookEconomy();
if (seatnumber != -1) {
System.out.println("Sorry, we were not able to book a firstclass seat. But do have an economy seat.");
printBoardingPass(seatnumber);
}
}
else {
// Booking a First class seat was successful.
System.out.println("You are in luck, we have a First class seat available!");
printBoardingPass(seatnumber);
}
}
else if (choice == 2) {
// If they chose booking an economy, check to see if it is available.
seatnumber = bookEconomy();
// If not available, see if we have firstclass seats available.
if (seatnumber == -1) {
seatnumber = bookFirstclass();
if (seatnumber != -1) {
System.out.println("Sorry, we were not able to book an economy seat. But do have a firstclass seat.");
printBoardingPass(seatnumber);
}
}
else {
// Booking an eonomy seat was successful.
System.out.println("You are in luck, we have an economy seat available!");
printBoardingPass(seatnumber);
}
}
else {
// Print an error message if they did not choose 1, 2, or 0 for their choice.
System.out.println("Invalid choice made. Please try again!");
choice = 0;
}
// No window or economy seats were available.
if (seatnumber == -1) {
System.out.println("We are sorry, there are no economy or firstclass seats available.");
System.out.println();
}
// Reprompt for a choice
System.out.print("Please enter 1 for first class, 2 for economy, or 0 to exit: ");
choice = s.nextInt();
}
}
// This function checks for window seats and returns seat number or -1 if full.
private static int bookFirstclass() {
for (int i = 0; i < 6; i++) {
if (seats[i] == 0) {
seats[i] = 1;
return i + 1;
}
}
return -1;
}
// This function checks to see if aisle seats were available, -1 if full.
private static int bookEconomy() {
for (int i = 6; i < 12; i++) {
if (seats[i] == 0) {
seats[i] = 1;
return i + 1;
}
}
return -1;
}
// This simply prints out a nice little boarding pass message with their seat number and date of issue.
private static void printBoardingPass(int seatnumber) {
Date timenow = new Date();
System.out.println();
System.out.println("Date: " + timenow.toString());
System.out.println("Boarding pass for seat number: " + seatnumber);
System.out.println("This ticket is non-refundable and non-transferable.");
System.out.println("Please be curteous, do not smoke. Enjoy your trip.");
System.out.println();
}
}