program to find the number of vowels, digits and white spaces in c++

 In this example, we will learn to find the number of vowels, consonants, digits, and white spaces present in a C++ string.

Given a string and the task is to count vowels, consonant, digits and special character in string. Special character also contains the white space.

solution:

#include<iostream>
using namespace std;

bool isVowel(char c);
bool isDigit(char c);
void Calculates(char* ch);

int main()
{
	char ch[100];
	cout << "Enter string: ";
	cin.getline(ch, 100);
	Calculates(ch);
	return 0;
}
//colculate
void Calculates(char* ch)
{
	int vowel, digit, w_spa;
	vowel = digit = w_spa = 0;
	for(int i=0; ch[i]!='\0'; i++)
	{
		if (isVowel(ch[i]))
			vowel++;
		else if (isDigit(ch[i]))
			digit++;
		else if (ch[i] == ' ')
			w_spa++;
	}
	cout << "Vowel = " << vowel << "\n";
	cout << "Digit = " << digit << "\n";
	cout << "White Space = " << w_spa << "\n";
}
//is vowel
bool isVowel(char c)
{
	if (c == 'a' || c == 'A')
		return true;
	else if (c == 'e' || c == 'E')
		return true;
	else if (c == 'i' || c == 'I')
		return true;
	else if (c == 'o' || c == 'O')
		return true;
	else if (c == 'u' || c == 'U')
		return true;
	return false;
}
//is digit
bool isDigit(char c)
{
	if (c >= '0' && c <= '9')
		return true;
	return false;
}