Answer:
// here is code in C++.
#include <bits/stdc++.h>
using namespace std;
// function that return the number of vowels in the input string
int count_vowels()
{
// variable
string str;
int v_count=0;
cout<<"enter the string:";
// read the string
cin>>str;
// fuind the length
int len=str.length();
// check for vowel
for(int x=0;x<len;x++)
{
char ch=str[x];
if(ch=='a'||ch=='e'||ch=='i'||ch=='o'||ch=='u'||ch=='A'||ch=='E'||ch=='I'||ch=='O'|ch=='U')
{
v_count++;
}
}
// return the count
return v_count;
}
// driver function
int main() {
// call the function and print the result
cout<<"number of vowels in string is : "<< count_vowels()<<endl;
return 0;
}
Explanation:
In the function count_vowels(), read a sting and then find its length.Then check each character of the string is vowel or not.If it is vowel then Increment the v_count. After the loop return the count to main function and print it.
Output:
enter the string: welcometoprogramming
number of vowels in string is : 7
