Find character with most occurrences in string?

Question

For example, I have a string:

\"abbbbccd\"

b has the most occurrences. When using C++, the easiest way to handle this is inser

Answer 1

string testString = "abbbbccd";
var charGroups = (from c in testString
                    group c by c into g
                    select new
                    {
                        c = g.Key,
                        count = g.Count(),
                    }).OrderByDescending(c => c.count);
foreach (var group in charGroups)
{
    Console.WriteLine(group.c + ": " + group.count);
}