adding the values of members of a class to an array c#

Question

I have create a class, islands, for which i have created 7 instances in the main class. Each instance has an in assigned, which represents how many containers need to be picked up from each.

class Program
{
    public static int[,] TEUlayer1 = new int[4, 4] { { 1, 1, 1, 1 }, { 1, 1, 1, 1 }, { 1, 1, 1, 1 }, { 1, 1, 1, 1 } };

    public static int[,] TEUlayer2 = new int[4, 4] { { 1, 1, 1, 1 }, { 1, 1, 1, 1 }, { 1, 1, 1, 1 }, { 1, 1, 1, 0 } };

    public static Island is1 = new Island(2);
    public static Island is2 = new Island(3);
    public static Island is3 = new Island(1);
    public static Island is4 = new Island(4);
    public static Island is5 = new Island(2);
    public static Island is6 = new Island(2);
    public static Island is7 = new Island(1);

    static void Main(string[] args)
    {
        for (int i = 0; i < 4; i++)
        {
            for (int j = 0; j < 4; j++)
            {
                Console.Write(TEUlayer1[i, j] + " ");
            }
            Console.WriteLine();
        }
        Console.WriteLine();
        for (int i = 0; i < 4; i++)
        {
            for (int j = 0; j < 4; j++)
            {
                Console.Write(TEUlayer2[i, j] + " ");
            }
            Console.WriteLine();
        }

    }
}

class Island
{
    public int S8s4collection { get; set; }

    public Island(int s8s)
    {
        s8s = S8s4collection;
    }
}

it is probably worth ignoring the main method and TEUlayer1/2 parts. these represent a stack of containers on a small ship, but this isn't relevant to the question. My question is can I create a loop, or some other function, that goes through each instance of the island class (is1, is2 ...) and appends the value associated with it to a list or array etc? thanks!

Answer 1

To be able to iterate over your islands you need a collection of Islands.

This works:

public class Program
{
    public static int[,] TeuLayer1 = new int[4, 4] { { 1, 1, 1, 1 }, { 1, 1, 1, 1 }, { 1, 1, 1, 1 }, { 1, 1, 1, 1 } };
    public static int[,] TeuLayer2 = new int[4, 4] { { 1, 1, 1, 1 }, { 1, 1, 1, 1 }, { 1, 1, 1, 1 }, { 1, 1, 1, 0 } };
    public static List<Island> Islands = new List<Island> { new Island(2), new Island(3), new Island(1), new Island(4), new Island(2), new Island(2), new Island(1) };

    static void Main(string[] args)
    {
        Program.PrintLayer(Program.TeuLayer1);
        Program.PrintLayer(Program.TeuLayer2);
        Program.PrintIsland(Program.Islands);

        Console.ReadKey();
    }

    public class Island
    {
        public int S8s4collection { get; private set; }

        public Island(int s8s)
        {
            S8s4collection = s8s;
        }
    }

    private static void PrintIsland(IEnumerable<Island> islands)
    {
        var index = 0;
        foreach (var island in islands)
        {
            Console.WriteLine("Island {0} has a 'S8s4collection' of: {1}", index, island.S8s4collection);
            index++;
        }

        Console.WriteLine();
    }

    private static void PrintLayer(int[,] layer)
    {
        for (int i = 0; i < 4; i++)
        {
            for (int j = 0; j < 4; j++)
            {
                Console.Write(layer[i, j] + " ");
            }

            Console.WriteLine();
        }

        Console.WriteLine();
    }
}

Although having everything as static isn't ideal. Oh and your Island constructor was wrong.

Output:

output when running the above

Answer 2

besides the problems with the islands class gilliduck mentioned, it seems. like you just want an array of islands.

public static Island[] is = new Island[7];
public static Island is[1] = new Island(2);
...

then if you wamt to loop through

for(int i=0;i<is.Length;i++) {
  is[i].DoSomething () ;
}