Question

How to find the number of occurrences (frequency) of each character in a string with C#

Answer 1

using System;
                     
public class Program
{
    static int TOTLAASCII = 256; 
       
    static void character_occurrences(String s) { 
        int []arr = new int[TOTLAASCII]; 
 
        int len = s.Length; 
        for (int i = 0; i < len; i++) 
            arr[s[i]]++; 
       
        for (int i = 1; i < TOTLAASCII; i++) { 
            if (arr[i] > 0) {
               Console.WriteLine((char)i + " - " + (int)arr[i]);
            }
        } 
    } 
     
    public static void Main()
    {
        String s = "javac++phpcpythonc#"; 
         
        character_occurrences(s); 
    }
}
 
 
 
/*
run:
 
# - 1
+ - 2
a - 2
c - 3
h - 2
j - 1
n - 1
o - 1
p - 3
t - 1
v - 1
y - 1
 
*/

 

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