Generic type array get and set in C# , how to make it work?

Your code had lots of issues, here is the correct code, with explanation in comments, you are using generic type data to inittialize , set and get values of arrays

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    
    class tester
    {
        public static void Main(string[] args)
        {
            //Initialize array of int type
            MyGenericArray<int> intArray = new MyGenericArray<int>(5);
            //Set items in array one bye one by loop
            for (int c = 0; c < 5; c++)
            {
                intArray.setItem(c, c * 5);
            }

            //Get Items of Array set in above steps
            for (int c = 0; c < 5; c++)
            {
              Console.Write(intArray.getItem(c) + " ");
            }
            Console.WriteLine();
            //repeat above steps again using char type instead of int
            MyGenericArray<char> charArray = new MyGenericArray<char>(5);
            for (int c = 0; c < 5; c++)
            {
                charArray.setItem(c, (char)(c + 97));
            }
            for (int c = 0; c < 5; c++)
            {
                Console.Write(charArray.getItem(c) + " ");
            }
            Console.WriteLine();
        }    

        //Create private class of generic type
        private class MyGenericArray<T>
        {
            private int v;
            private T[] array= new T[5];


            //set the Generic type array length
            public MyGenericArray(int v)
            {
                this.v = v;
            }

            //get array items
            public T getItem(int index)
            {
                return array[index];
            }

            //set array items, at Index for example 1, where value = value of type T(int, char)
            public T setItem(int index, T value)
            {
                //example array[0]=0
                //array [1]=5
                //array [2]=10
                return array[index] =value;
            }
        }
    }
}
    

try this link