• On June 13, 2020
• By Karmehavannan
• 0 Comment
• Categories: Find elements, String
• Tags: C++ programs, Cpp language

C++ program: Find the frequency of each character in the string

C++ program: Find the frequency of each character in the string

In this article, we will discuss the concept of theC++ program: Find the frequency of each character in the string

In this post, we are going to learn how to find the frequency of the each character of the string in C++ programming language

Code to find the frequency of the each character in the string

find the frequency of the each character in the string using for loop

The program allows the user to enter a String and then it finds the frequency of the each character in the string using for loop in C++ programing language

program 1

#include 
#include 
#include 

using namespace std;

int main()
{
    char str[100];
    int i;
    int freq[256]={0};
    cout<<"Enter a string\n";
    gets(str);
    for(i=0; str[i]!='\0'; i++){
        freq[str[i]]++;
    }
        for(i=0; i<256; i++){
        if(freq[i] !=0){
            cout<<"Character "<<(char)i<<" occurs "<
When the above code is executed,it produces the following result

 

find the frequency of  the each character in the string using while loop
The program allows the user to enter a String and then it finds the frequency of the each character in the string using while loop in C++ programing language
Program 2
#include 
#include 
#include 
using namespace std;

int main()
{
    char str[100];
    int i;
    int freq[256]={0};
    cout<<"Enter a string\n";
    gets(str);
    i=0;
    while(str[i]!='\0'){
        freq[str[i]]++;
        i++;
    }
    i=0;
        while(i<256){
        if(freq[i] !=0){
            cout<<"Character "<<(char)i<<" occurs "<
When the above code is executed,it produces the following result

 
 
 

find the frequency of  the each character in the string using do-while loop
The program allows the user to enter a String and then it finds the frequency of the each character in the string using do-while loop in C++ programing language
Program 3
#include 
#include 
#include 
using namespace std;

int main()
{
    char str[100];
    int i;
    int freq[256]={0};
    cout<<"Enter a string\n";
    gets(str);
    i=0;
   do{
        freq[str[i]]++;
        i++;
    } while(str[i]!='\0');
    i=0;
        do{
        if(freq[i] !=0){
            cout<<"Character "<<(char)i<<" occurs "<
When the above code is executed,it produces the following result

 
 
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