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Program to count the number of characters in a word

Last Updated : 18 Jan, 2024
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Write a program to count the number of characters in a word.

Examples:

Input: Word: “programming”
Output: 11

Input: Word: “hello”
Output: 5

Approach: To solve the problem, follow the below idea:

To count the number of characters in a word, maintain a variable to count all the characters. Iterate through each character in the word and increment the counter for every character.

Step-by-step algorithm:

  • Initialize a counter variable to 0.
  • Iterate through each character in the word.
  • For each character encountered, increment the counter.
  • After iterating through all characters, the counter will contain the total number of characters in the word.

Below is the implementation of the algorithm:

C++




#include <iostream>
 
using namespace std;
 
int main() {
    string word = "programming";
    int count = 0;
 
    for (int i = 0; i < word.length(); ++i) {
        ++count;
    }
 
    cout << "Number of characters: " << count << endl;
 
    return 0;
}


C




#include <stdio.h>
 
int main()
{
    char word[] = "programming";
    int count = 0;
 
    for (int i = 0; word[i] != '\0'; ++i) {
        ++count;
    }
 
    printf("Number of characters: %d\n", count);
 
    return 0;
}


Java




public class CharacterCount {
    public static void main(String[] args)
    {
        String word = "programming";
        int count = 0;
 
        for (int i = 0; i < word.length(); ++i) {
            ++count;
        }
 
        System.out.println("Number of characters: "
                           + count);
    }
}


Python3




word = "programming"
count = 0
 
for char in word:
    count += 1
 
print("Number of characters:", count)


C#




using System;
 
class Program {
    static void Main()
    {
        string word = "programming";
        int count = 0;
 
        foreach(char c in word) { ++count; }
 
        Console.WriteLine("Number of characters: " + count);
    }
}


Javascript




let word = "programming";
let count = 0;
 
for (let i = 0; i < word.length; ++i) {
    ++count;
}
 
console.log("Number of characters:", count);


Output

Number of characters: 11

Time Complexity: O(N), where N is the length of the word.
Auxiliary Space: O(1)



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