C# Program to find number of occurrence of a character in a String

• By using following example,It is possible to count each character is occurred how many times in the given string.

 class NumberOfCharectersCount  
   {  
     public static void Main(string[] args)  
     {  
       string input = "csharpstar";  
       while (input.Length > 0)  
       {  
         Console.Write(input[0] + " : ");  
         int count = 0;  
         for (int j = 0; j < input.Length; j++)  
         {  
           if (input[0] == input[j])  
           {  
             count++;  
           }  
         }  
         Console.WriteLine(count);  
         input = input.Replace(input[0].ToString(), string.Empty);  
       }  
       Console.ReadLine();  
     }  
   }