Convert Array into a primative method to express the same result, using no LINQ only int.

Question

my program records the number of bottles four rooms has collected in a bottle drive. When the user types in quit, the number of bottle each room has collected is shown as well a

Answer 1

You can not replace an array easily with individual variables. If you have a declaration like

int room1 = 0, room2 = 0, room3 = 0, room4 = 0;

and want to access room number i then you have to write

switch (i) {
    case 1:
        Console.WriteLine(room1);
        break;
    case 2:
        Console.WriteLine(room2);
        break;
    case 3:
        Console.WriteLine(room3);
        break;
    case 4:
        Console.WriteLine(room4);
        break;
}

With an array you can simply write

Console.WriteLine(rooms[i]);

---

If you really want to go this array-less way, I suggest you to use helper methods:

private void SetRoom(int room, int value)
{
    switch (room) {
        case 1:
            room1 = value;
            break;
        case 2:
            room2 = value;
            break;
        case 3:
            room3 = value;
            break;
        case 4:
            room4 = value;
            break;
    }
}

public int GetRoom(int room)
{
    switch (room) {
        case 1:
            return room1;
        case 2:
            return room2;
        case 3:
            return room3;
        case 4:
            return room4;
        default:
            return 0;
    }
}

You must declare variables room1 to room4 as class members to make this work.

Now you can write:

Console.WriteLine(GetRoom(i));

Or instead of rooms[i] += n;

SetRoom(i, GetRoom(i) + n);