CSHARP

c# count number of occurrences in string

char myChar = 'x';
string myString = "xyz";

int count = myString.Count(s => s == myChar);

count number of specific characters in string c#

# cCopyusing System;
using System.Linq;

namespace get_first_char_of_string
{
    class Program
    {
        static void Main(string[] args)
        {
            string source = "/once/upon/a/time/";
            int count = source.Split('o').Length - 1; 
            Console.WriteLine(count);
        }
    }
}

count number of specific characters in string c#

string source = "/once/upon/a/time/";
int count = 0;
foreach (char c in source) 
  if (c == '/') count++;