Password_Generator

using System;
using System.Text;

class Program
{
    private const string CapitalLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
    private const string SmallLeters = "abcdefghijklmnopqrstuvwxyz";
    private const string Digits = "0123456789";
    private const string SpecialChars = "~!@#$%^&*()_+='{}[]\\|':;.,/?<>";
    private const string AllChars = CapitalLetters + SmallLeters + Digits + SpecialChars;
    private static Random rnd = new Random();
    static void Main()
    {
        StringBuilder password = new StringBuilder();

        for (int i = 1; i <= 2; i++)
        {
            char capitalLetter = GenerateChar(CapitalLetters);
            InsertAtRandomPosition(password, capitalLetter);
            char smallLetter = GenerateChar(SmallLeters);
            InsertAtRandomPosition(password, smallLetter);
        }

        char digit = GenerateChar(Digits);
        InsertAtRandomPosition(password, digit);

        for (int i = 1; i <= 3; i++)
        {
            char specialChar = GenerateChar(SpecialChars);
            InsertAtRandomPosition(password, specialChar);
        }

        int count = rnd.Next(8);
        for (int i = 0; i <= count; i++)
        {
            char specialChar = GenerateChar(AllChars);
            InsertAtRandomPosition(password, specialChar);
        }

        Console.WriteLine(password);

        Console.WriteLine();
    }

    private static void InsertAtRandomPosition(StringBuilder password, char character)
    {
        int randomPosition = rnd.Next(password.Length + 1);
        password.Insert(randomPosition, character);
    }
    private static char GenerateChar(string availableChars)
    {
        int randomIndex = rnd.Next(availableChars.Length);
        char randomChar = availableChars[randomIndex];
        return randomChar;
    }
}