static void Main(string[] args)
{
string str;
Console.Write("\nLINQ : Display the characters and frequency of character from giving string : ");
Console.Write("\n----------------------------------------------------------------------------\n");
Console.Write("Input the string : ");
str = Console.ReadLine();
Console.Write("\n");
var FreQ = from x in str
group x by x into y
select y;
Console.Write("The frequency of the characters are :\n");
foreach (var Arr in FreQ)
{
Console.WriteLine("Character " + Arr.Key + ": " + Arr.Count() + " times");
}
}
public Func <Unit, int> Count(Arr <A> fa) => _ => fa.Count();