static void Main(string[] args)
{
Console.WriteLine("Enter Income Account");
double income = Convert.ToDouble(Console.ReadLine());
TaxAccounting c = new TaxAccounting();
Console.WriteLine($"TDS = {c.CalculateTDS(income)}");
Console.WriteLine($"GST = {c.CalculateGST(income)}");
string str = "Mahesh Rameshrao Sabnis";
char ch = 'a';
int frequency = str.FindCharacterFrequency(ch);
Console.WriteLine($"Frequenct of {ch} in {str} = {frequency}");
Console.ReadLine();
}
public static double CalculateGST(this TaxAccounting t, double billAmount)
{
return(billAmount * 0.18);
}
