Why is this C# program which uses a "function" not working?

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-1

I've made a small C# program that takes an array with some numbers (float) inside and that tells how many numbers in the array are not in the interval ]a,b] I succeeded. Here is the program:

using System;

namespace Exercice_1
{
    class Program
    {
        public static void Main(string[] args)
        {

        Console.WriteLine("a = ?");

        float a = float.Parse(Console.ReadLine());

        Console.WriteLine("b = ?");

        float b = float.Parse(Console.ReadLine());

        float[] t = new float[50];

        for(int i=0; i<t.Length; i++)
        {
            t[i]=4*i;
        }

        int k = 0;

        for(int i=0; i<t.Length; i++)
        {
            if(t[i] <= a || t[i] > b)
            {
                k++;
            }
        }

        Console.Write(""+k);

        Console.ReadKey(true);

    }
    }
}

But then I wanted to try making that same program but with using a "function".

But I did not succeed. Here is the program:

    using System;

namespace Exercice_2
{

    class Program
    {
        public static void Main(string[] args)
        {

        Console.WriteLine("a = ?");

        float a = float.Parse(Console.ReadLine());

        Console.WriteLine("b = ?");

        float b = float.Parse(Console.ReadLine());

        float[] t = new float[50];

        for(int i=0; i<t.Length; i++)
        {
            t[i]=4*i;
        }

        Console.Write(""+count(float[] t, float a, float b));

        Console.ReadKey(true);

    }

    static int count(float[] u, float x, float y)
    {
        int k = 0;

        for(int i=0; i<u.Length; i++)
        {
            if(u[i] <= x || u[i] > y)
            {
                k++;
            }
        }

        return k;
     }


    }
}

I've also tried putting the function outside "class Program", but it didn't work either.

It's the first time I'm trying to use a "function" so I probably made some obvious beginner mistakes...

Here are all the "errors" which SharpDevelop is pointing out: http://ift.tt/1tMONnD

asked 1 min ago

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1

Why is this C# program which uses a "function" not working?