如何从堆栈中检索数组

Question

I would like to implement a stack in a project am working on, haven't used stacks before, as I am a beginner. I just felt like they would do the trick. I got a general idea of how they work but am having troubles trying to retrieve an array that id have pushed into the stack, am returning

static void Main(string[] args)
{
        int G;
        int [] A=new int [2];
        Stack st = new Stack();

        for (G = 0; G < 5; G++)
        {
            A[0] = G;
            A[1] = G;


            st.Push(A);
        }

        foreach (Object obj in st)
        {
            Console.WriteLine(obj);
        }

        Console.ReadKey();
}

Instead of getting a set of arrays, I am getting System.Int32[] - how can I return the contents of the array

Answer 1

The problem is that you are using

Console.WriteLine(obj);

passing the object as an argument. This method expects a string as input, so you should convert your array in a string before.

This question may help you : int array to string

This should work:

static void Main(string[] args)
{
        int G;
        int [] A=new int [2];
        Stack st = new Stack();

        for (G = 0; G < 5; G++)
        {
            A[0] = G;
            A[1] = G;


            st.Push(A);
        }

        foreach (Object obj in st)
        {
            Console.WriteLine(string.Join("", (int[])obj));
        }

        Console.ReadKey();
}

Also, you should notice that you are pushing the same array five times in the stack.