C++ Program to Find Frequency of Characters in a String

In this article, you will see C++ Program to Find Frequency of Characters in a String.

TOPICS:

(1) C++ Program to Find Frequency of Characters in a C-Style String.

(2) C++ Program to Find Frequency of Characters in a String Object.

C++ Program to Find Frequency of Characters in a C-Style String

#include<iostream>

using namespace std;

int main()

{

        int i, count=0;

        char str[100], f;

        cout<<"Enter a String : ";

        cin.getline(str,100);

        cout<<"Enter a character to find frequency : ";

        cin>>f;

        for(i=0; str[i]!='\0'; i++)

        {

                if(f==str[i])

                {

                        count++;

                }

        }

        cout<<"Frequency of "<<f<<" is "<<count;

        return 0;

}

OUTPUT:

Enter a String : C++ is a object-oriented programming language.

Enter a character to find frequency : a

Frequency of a is 4

C++ Program to Find Frequency of Characters in a String Object

#include<iostream>

using namespace std;

int main()

{

        int i, count=0;

        string str;

        char f;

        cout<<"Enter a String : ";

        getline(cin, str);

        cout<<"Enter a character to find frequency : ";

        cin>>f;

        for(i=0; i<str.length(); i++)

        {

                if(str[i]==f)

                {

                        count++;

                }

        }

        cout<<"Frequency of "<<f<<" is "<<count;

        return 0;

}

OUTPUT:

Enter a String : C++ is a object-oriented programming language.

Enter a character to find frequency : a

Frequency of a is 4