Find the number of occurance of a character in a string using Linq/Lambda

Impressed by the question being posted at http://www.dotnetfunda.com/codes/code2607-count-of-number-for-individual-char-in-string.aspx?com=added, I thought of solving the same by using Linq/Lambda approach.

Lambda Approach

string input = "Find the number of occurance of a character in a string using Linq/Lambda";

            char searchFor = 'a';



            input

                .ToCharArray()

                .GroupBy(i => i)

                .Select(i => new { Letters = i.Key, LetterCount = i.Count() })

                .Where(i => i.Letters == searchFor)

                     .ToList()

                     .ForEach(i => Console.WriteLine(i.LetterCount)); 

Linq Approach

string input = "Find the number of occurance of a character in a string using Linq/Lambda";

            char searchFor = 'a';                                    



            (from letter in input.ToCharArray()

                      group letter by letter into g

                      select new

                      {

                          Letters = g.Key



                          ,

                          LetterCount = g.Count()

                      })

                     .Where(i => i.Letters == searchFor)

                     .ToList()

                     .ForEach(i => Console.WriteLine(i.LetterCount));

Hope this helps

Best Regards,
Niladri Biswas