in java language: please any body who can help me. i post this project on the second time.

Write a program that provides a menu that allows a user to create, destroy, and inflate balloon objects in an array that holds five balloon objects. Make all balloon attributes private variables and provide getters, setters and constructors where needed. Support these menu options:

1. Create a balloon with a color and size if there is room in the array.

a. Validate room is available using a method isArrayFull(). b. Validate the size from this list (6, 8, 10, 12) using a method isValidSize() c.Validate the color from this list (red, blue, green, yellow) using a method isValidColor()

2. List all balloons: size, color, inflated using a toString() method 3. Inflate a balloon if it exists and if it is not currently inflated. Provide a method isValidBalloon() and isBalloonInflated() for validation. 4. Destroy a balloon if it exists. Validate it exists by using the method isValidBalloon() 5. Print the number of balloons that exist 6. Quit

i made this project but my destroy and inflate. Validate room is available using a method isArrayFull(). does not work. is their anybody who can help me .

import java.util.Scanner;

public class Main { public static void main(String[] args) { System.out.println("===========================================  "  + "| Welcome to Balloon Project | " + "| How can I help you | "  + "| Please look out our Balloon menu. | " + "| 1.Create | "  + "| 2.Destroy | " + "| 3.Inflate | "  + "| 4.Show Balloon | " +"| (Q)uit | "  + "============================================| "); Balloon[] balloon = new Balloon[5]; int choice; // Do- while loop   do { // Print Menu  String[] menu = {"[1]Create a Balloon ", "[2]Destroy the Balloon ", "[3]Inflate the Balloon", "[4]Show the Balloon", " [Q]uit"}; Scanner input = new Scanner(System.in); // Prompt the user to enter the integer  for (String each : menu) System.out.println(each); System.out.print(" Enter an integer from the menu "); choice = input.next().toUpperCase().charAt(0); //Create a balloon  switch (choice) { case'1' : System.out.print("How many balloon do you want to create? "); int Create = input.nextInt(); balloon = new Balloon[Create]; for (int k = 0; k < balloon.length; k++) { System.out.print("Balloon " + (k + 1)+ " " ); int size; String color; do { //Ask the user for a size  System.out.print("Enter a size (6, 8, 10, 12): "); size = input.nextInt(); Balloon.getSize(size); // Validate the size  System.out.println(Balloon.IsValidSize(size)); } while (Balloon.IsValidSize(size).equals("Invalid size")); do { //Ask the user for a color  System.out.print("Enter a color (red, blue, green, yellow): "); color = input.next(); Balloon.getColor(color); // Validate the color  System.out.println(Balloon.IsValidColor(color)); } while (Balloon.IsValidColor(color).equals("Invalid color")); balloon[k] = new Balloon(size, color); } for (Balloon each : balloon) { System.out.println(each); } System.out.println("We made " + Balloon.getQuantity() + " balloons"); break; // Destroy a balloon  case '2': // Print all balloons  for (Balloon each : balloon) System.out.println(each); System.out.print("Which balloon do you want to destroy? "); // int record = input.nextInt();  int record; String color; do { //Ask the user for a size  System.out.print("Enter a size (6, 8, 10, 12): "); record = input.nextInt(); Balloon.getSize(record); // Validate the size  System.out.println(Balloon.IsValidSize(record)); } while (Balloon.IsValidSize(record).equals("Invalid size")); do { //Ask the user for a color  System.out.print("Enter a color (red, blue, green, yellow): "); color = input.next(); Balloon.getColor(color); // Validate the color  System.out.println(Balloon.IsValidColor(color)); } while (Balloon.IsValidColor(color).equals("Invalid color")); // Validate if Balloon exists   if (Balloon.IsValidBalloon(balloon[record])) // Destroy a balloon  System.out.println("Balloon doesn't exist"); else { Balloon.destroy(record , balloon); } // Print all balloons including destroyed ones  for (Balloon each :balloon) { System.out.println(each); } break; // Inflated a balloon  case '3': // Print all balloons  for (Balloon each : balloon) { System.out.println(each); } System.out.print("Which balloon do you want to inflate ? "); record = input.nextInt(); // Validate if Balloon exists  if (Balloon.IsValidBalloon(balloon[record ])) { if (Balloon.IsBalloonInflated(record , balloon)) Balloon.inflate(record , balloon); else System.out.println("Balloon is inflated"); } else System.out.println("Balloon doesn't exist"); // Print all balloons including inflated ones  for (Balloon each : balloon) { System.out.println(each); } break; case '4': // Print all balloons  for (Balloon each : balloon) { System.out.println(each.toString()); } System.out.println("Number of balloons "+balloon.length); break; // Quiting  case 'Q': System.out.println("Quiting"); break; // Invalid number  default: System.out.println("Choice must be a value between 0 and 4."); } } while (choice != 'Q'); System.out.println("We already have " + Balloon.getQuantity() + " balloon(s)"); } } class Balloon { private int size; private String color; boolean inflated; private static int quantity = 0; // Constructor receives size and color  Balloon(int s, String c) { size = s; color = c; quantity++; } // Return the size  public static int getSize(int s) { Balloon.IsValidSize(s); return s; } // Return the color  public static String getColor(String c) { Balloon.IsValidColor(c); return c; } // Return quantity  static int getQuantity() { return quantity; } //Validate the size  static String IsValidSize(int s) { if (s == 6 || s == 8 || s == 10 || s == 12) return " "; else  return "Invalid size.Please Try again"; } //Validate the color  static String IsValidColor(String c) { if (c.equalsIgnoreCase("red") || c.equalsIgnoreCase("blue") || c.equalsIgnoreCase("green") || c.equalsIgnoreCase("yellow")) return " "; else  return "Invalid color. please Try again. "; } // Balloon exists  public static boolean IsValidBalloon(Balloon arg) { return arg != null; } // Destroy a balloon  public static void destroy(int d, Balloon[] arg) { quantity--; arg[d] = null; } // Is Balloon inflated  public static boolean IsBalloonInflated (int i, Balloon[] arg) { return arg[i].inflated ; } // Inflate a balloon  public static void inflate(int i, Balloon[] arg) { arg[i].inflated = true; } @Override public String toString() { return "Balloon{" + "size=" + size + ", color='" + color + '\'' + ", inflated=" + inflated + '}'; } }