CODEWITHSUNDEEP
javaobject
user3437853
user3437853

Reputation:

Using Objects in Method

I am trying to use a menu system that can delete a customer from my array myHotel[], this is built from an object. 

if(menu.charAt(0) == 'D')deleteCustomer(myHotel[]);

...

public void deleteCustomer(String myHotel[]){
         Scanner input = new Scanner(System.in);
         System.out.println("Please Enter Room Number to Delete Customer");
         roomNum=input.nextInt();
         myHotel[roomNum].setName("e");
    }

I get the errors, cannot find symbol?

Here is the Full Code

import java.util.*;
public class Main {

     public static void main(String[] args) {

        Scanner input = new Scanner(System.in);
        int roomNum=0;
        Room[] myHotel = new Room[10];
        for (int x =0; x<10; x++){
           myHotel[x] = new Room(); 
        }

        String roomName;

        String menu;
        do { 

        System.out.println("Please Select an Option from the Menu:");
        System.out.println("Enter V to View all Rooms");
        System.out.println("Enter A to Add Customer to Room");
        System.out.println("Enter D to Delete Customer from Room");
        System.out.println("Enter Q to Quit");
        menu=input.next();
        //if(menu.charAt(0) == 'V')viewAllRooms(); 
        //if(menu.charAt(0) == 'A')addCustomer(); 
        if(menu.charAt(0) == 'D')deleteCustomer(myHotel[]);
        } while (menu.charAt(0) != 'Q');

            while (roomNum < 10) {
            for (int x = 0; x < 10; x++ )
             if (myHotel[x].getName().equals("e"))System.out.println("room " + x + " is empty");

            System.out.println("Enter room number (0-9) or 10 to stop:");
            roomNum = input.nextInt();
            System.out.println("Enter name for room " + roomNum + " :");
            roomName = input.next();
            myHotel[roomNum].setName(roomName);

             for (int x = 0; x < 10; x++) {
                //System.out.println("room " + x + " occupied by " + myHotel[x].mainName);
                System.out.println("room " + x + " occupied by " + myHotel[x].getName());
            }
        }
    }
     public void deleteCustomer(String myHotelRef){
         Scanner input = new Scanner(System.in);
         System.out.println("Please Enter Room Number to Delete Customer");
         int deleteRoom=input.nextInt();
         myHotelRef[deleteRoom].setName("e");
    }

     }

Upvotes: 0

Views: 135

Answers (3)

D.R.
D.R.

Reputation: 21224

You get multiple errors. What is myHotel[]? roomNum is not defined, etc.

Please use your compiler.

Upvotes: 5

JonK
JonK

Reputation: 2108

Your main problem is that you've included [] in your call to deleteCustomer. It should be:

if (menu.charAt(0) == 'D') {
    deleteCustomer(myHotel);
}

When you reference an array object as a whole you don't include square brackets. Square brackets are for the declaration, initialisation and for accessing individual elements within the array.

I'd also recommend that you get into the habit of always using curly braces with your if, for and while constructs, as not including them is often the cause of bugs. It also makes it easier to read when you come back to it, and you're clearly indicating to others what should be part of the loop and what shouldn't.

Upvotes: 0

Salah
Salah

Reputation: 8657

First you need declare myHotel array and pass it with out [].

deleteCustomer(myHotel);

Second, there is not such a method setName(String name) in String class

myHotel[roomNum].setName("e");// no such a method

Third, you need to declare the roomNum variable like:

int roomNum = input.nextInt();

Upvotes: 3

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