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How to count the number of each character in a string?

Revati S Misra 592 12-Feb-2023

the user inputs a string from which counts the number of each character

c# java programs

Updated on 12-Feb-2023

Revati S Misra

Revati S Misra

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1 Answers

13-Feb-2023

The occurrence of each character in a given string can be counted using the following C# program.

using System;
using System.Collections.Generic;
namespace HelloWorld
{
 class Program
 {
   static void Main(string[] args)
   {
       Console.WriteLine("Hello World");  
    Program.Countcharacter("Hello World");  
   }
   internal static void Countcharacter(string str)  
   {  
       Dictionary<char, int> charCount = new Dictionary<char, int>();  
       foreach (var character in str)  
       {  
           if (character != ' ')  
           {  
               if (!charCount.ContainsKey(character))  
               {  
                   charCount.Add(character, 1);  
               }  
               else  
               {  
                   charCount[character]++;  
               }  
           }  
       }  
       foreach (var character in charCount)  
       {  
           Console.WriteLine("{0} - {1}", character.Key, character.Value);  
       }  
   }
 }
}

Output:
Hello World
H - 1
e - 1
l - 3
o - 2
W - 1
r - 1
d - 1

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