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Program to count occurrence of a given character in a string
  • Difficulty Level : Basic
  • Last Updated : 21 May, 2018

Given a string and a character, task is to make a function which count occurrence of the given character in the string.

Examples:

Input : str = "geeksforgeeks"
         c = 'e'
Output : 4
'e' appears four times in str.

Input : str = "abccdefgaa"
          c = 'a' 
Output : 3
'a' appears three times in str.

C++




// C++ program to count occurrences of a given
// character
#include <iostream>
#include <string>
using namespace std;
  
// Function that return count of the given 
// character in the string
int count(string s, char c)
{
    // Count variable
    int res = 0;
  
    for (int i=0;i<s.length();i++)
  
        // checking character in string
        if (s[i] == c)
            res++;
  
    return res;
}
  
// Driver code
int main()
{
    string str= "geeksforgeeks";
    char c = 'e';
    cout << count(str, c) << endl;
    return 0;
}


Java




// JAVA program to count occurrences
// of a character
  
class GFG
{
    // Method that return count of the given
    // character in the string
    public static int count(String s, char c)
    {
        int res = 0;
  
        for (int i=0; i<s.length(); i++)
        {
            // checking character in string
            if (s.charAt(i) == c)
            res++;
        
        return res;
    }
      
    // Driver method
    public static void main(String args[])
    {
        String str= "geeksforgeeks";
        char c = 'e';
        System.out.println(count(str, c));
    }
}


Python3




# Python program to count occurrences
# of a given character
  
# Method that return count of the 
# given character in the string
def count(s, c) :
      
    # Count variable
    res = 0
      
    for i in range(len(s)) :
          
        # Checking character in string
        if (s[i] == c):
            res = res + 1
    return res
      
      
# Driver code
str= "geeksforgeeks"
c = 'e'
print(count(str, c))
      
# This code is contributed by "rishabh_jain".


C#




// C# program to count occurrences
// of a character
using System;
          
public class GFG {
      
    // Method that return count of the given
    // character in the string
    public static int count(string s, char c)
    {
        int res = 0;
  
        for (int i = 0; i < s.Length; i++)
        {
              
            // checking character in string
            if (s[i] == c)
            res++;
        
          
        return res;
    }
      
    // Driver method
    public static void Main()
    {
        string str = "geeksforgeeks";
        char c = 'e';
          
        Console.WriteLine(count(str, c));
    }
}
  
// This code is contributed by Sam007.


PHP




<?php
// PHP program to count 
// occurrences of a given
// character
  
// Function that return count of
// the given character in the string
function countt($s, $c)
{
      
    // Count variable
    $res = 0;
  
    for ($i = 0; $i < strlen($s); $i++)
  
        // checking character in string
        if ($s[$i] == $c)
            $res++;
  
    return $res;
}
  
    // Driver Code
    $str= "geeksforgeeks";
    $c = 'e';
    echo countt($str, $c) ;
    return 0;
      
// This code is contributed by nitin mittal.
?>



Output:

4

This article is contributed by Sahil Rajput. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above.

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