Question

// Write a program that determines how many of each type of vowel are in an entered string of 50 characters or less.

// The program should prompt the user for a string.

// The program should then sequence through the string character by character (till it gets to the NULL character) and count how many of each type of vowel are in the string.

// Vowels: a, e, i, o, u.

// Output the entered string, how many of each type of vowel are in the string and the total number of vowels in the string.

// Run 1: “Are Zoo’s a fun place to visit?”

// Run 2: “#1 Diablo Valley College”

#include <iostream>

#include <string>

#include <cctype>

#include <cstring>

using namespace std;

int numChars(char *, char);

int main() {

  const int SIZE = 51;

  char inputStr[SIZE];

  char vowels[]= {'a', 'e', 'i', 'o', 'u'};

  

  cout << "Enter a string (up to 50 characters): " << endl;

  cin.getline(inputStr, SIZE);

  cout << vowels << " appears " << endl;

  cout << numChars(inputStr, vowels) << " times.\n"

  return 0;

}

int numChars(char *ptr, char ch) {

    int vowelCount = 0;

    

    while(*ptr != '\0') {

      if(*ptr == ch)

        vowelCount++;

      ptr++;

    }

    return vowelCount;

}   

//This is the code I've written so far. Can anyone help me figure it out? Am I on the right track or am i I doing it correctly? Is there a less complicated way of doing it? Thank you

  

  

    

  

  

#include <iostream>

#include <string>

#include <cctype>

#include <cstring>

using namespace std;

// Write a program that determines how many of each type of vowel are in an entered string of 50 characters or less.

// The program should prompt the user for a string.

// The program should then sequence through the string character by character (till it gets to the NULL character) and count how many of each type of vowel are in the string.

// Vowels: a, e, i, o, u.

// Output the entered string, how many of each type of vowel are in the string and the total number of vowels in the string.

// Run 1: “Are Zoo’s a fun place to visit?”

// Run 2: “#1 Diablo Valley College”

int numChars(char *, char);

int main() {

  const int SIZE = 51;

  char inputStr[SIZE];

  char vowels[]= {'a', 'e', 'i', 'o', 'u'};

  

  cout << "Enter a string (up to 50 characters): " << endl;

  cin.getline(inputStr, SIZE);

  cout << vowels << " appears " << endl;

  cout << numChars(inputStr, vowels) << " times.\n"

  return 0;

}

int numChars(char *ptr, char ch) {

    int vowelCount = 0;

    

    while(*ptr != '\0') {

      if(*ptr == ch)

        vowelCount++;

      ptr++;

    }

    return vowelCount;

}   

  

  

    

  

  

Answer 1

Program:

#include <iostream>

#include <string>

#include <cctype>

#include <cstring>

using namespace std;

// Write a program that determines how many of each type of vowel are in an entered string of 50 characters or less.

// The program should prompt the user for a string.

// The program should then sequence through the string character by character (till it gets to the NULL character) and count how many of each type of vowel are in the string.

// Vowels: a, e, i, o, u.

// Output the entered string, how many of each type of vowel are in the string and the total number of vowels in the string.

// Run 1: “Are Zoo’s a fun place to visit?”

// Run 2: “#1 Diablo Valley College”

int numChars(char *, char *, int *);

int main() {

const int SIZE = 51;

char inputStr[SIZE];

char vowels[]= {'a', 'e', 'i', 'o', 'u'};

//array to hold the counts of each vowels, initialize all counts to 0

int count[] = {0, 0, 0, 0, 0};

int numberOfVowels;

//prompt and read the string

cout << "Enter a string (up to 50 characters): " << endl;

cin.getline(inputStr, SIZE);

//get the number of vowels using the numChars function

numberOfVowels = numChars(inputStr, vowels, count);

//output the string entered:

cout << endl << "String entered: " << inputStr << endl;

//output how many of each type of vowel are in the string

cout << endl << "Count of each type of vowel appeared in the string: " << endl;

for(int i = 0; i < 5; i++)

{

cout << vowels[i] << " - " << count[i] << endl;

}

//output total number of vowels in the string

cout << endl << "Total number of vowels in the string: " << numberOfVowels;

return 0;

}

//function that counts how many times each vowel appeared and returns the total number of vowels in the string

int numChars(char *ptr, char *ch, int *count)

{

int vowelCount = 0;

//run a loop that get each character in the string

while(*ptr != '\0')

{

//for each character, check if it is vowel or not

for(int i = 0; *(ch+i) != '\0'; i++)

{

//if vowel increment the count in the count array and also increment the total count

if(tolower(*ptr) == *(ch + i))

{

*(count + i) = *(count + i) + 1;

vowelCount++;

}

}

ptr++;

}

//return the total number of vowels

return vowelCount;

}

Output:

Let me know if you have any concerns with the above solution.