Question

I have a static function:

static string GenRan()
{
    List<string> s = new List<string> {"a", "b"};
    int r = Rand();
    string a = null;

    if (r == 1)
    {
        a += s[0];
        s.RemoveAt(0);
    }
    if (r == 2)
    {
        a += s[1];
        s.RemoveAt(1);
    }
    return a;
}

But everytime I call the function of course, the list is reset, so I would like to access the list from outside the static function.

Is there a way?

I tried:

static void Main(string[] args)
{
    List<string> s = new List<string> {"a", "b"};
    string out = GenRan(s);
}

static string GenRan(List<string> dict)
{

    int r = Rand();
    string a = null;

    if (r == 1)
    {
        a += s[0];
        s.RemoveAt(0);
    }
    if (r == 2)
    {
        a += s[1];
        s.RemoveAt(1);
    }
    return a;
}

But then I get an Index is out of range error (not sure why).

Can anyone help?

Answer 1

You need to add it to the class as static field variable:

private static List<string> s = new List<string> { "a", "b" };

static string GenRan()
{
    int r = Rand();
    string a = null;

    if (r == 1)
    {
        a += s[0];
        s.RemoveAt(0);
    }
    if (r == 2)
    {
        a += s[1];
        s.RemoveAt(1);
    }
    return a;
}