Question

Write a program that prompts the user to input a string. The program then uses the function substr to remove all the vowels from the string. For example, if str=”There”, then after removing all the vowels, str=”Thr”. After removing all the vowels, output the string. Your program must contain a function to remove all the vowels and a function to determine whether a character is a vowel.

You must insert the following comments at the beginning of your program and write our commands in the middle:

Write a C++ Program:

/*

// Name: Your Name

// ID: Your ID

// Purpose Statement:~~~

*/

#include <iostream>

#include <string>

using namespace std;

void removeVowels(string& str);

bool isVowel(char ch);

int main()

{

    string str;

    cout << "Enter a string: ";

    …

    …

         YOUR CODE HERE

    …

    …

return 0;

}

void removeVowels(string& str)

{

    int len = str.length();

    …

    …

         YOUR CODE HERE

    …

    …

}

bool isVowel(char ch)

{

    switch (ch)

    …

    …

         YOUR CODE HERE

    …

    …

}

Answer 1

Hi There, I have included the code snippet.Please let me know if you have any doubts.

#include <iostream>
#include <string>
#include <bits/stdc++.h> 

using namespace std;
string removeVowels(string str);
bool isVowel(char ch);

int main(){
    string strr;
    cout << "Enter a string: ";
    cin>>strr;
    cout<<removeVowels(strr)<<endl;
return 0;
}

// this function will remove vowels
string removeVowels(string str){ 
    int len = str.length();
    vector<char> vowels = {'a', 'e', 'i', 'o', 'u', 
                           'A', 'E', 'I', 'O', 'U'}; 
      
    for (int i = 0; i < len; i++)  
    { 
        if (find(vowels.begin(), vowels.end(), 
                      str[i]) != vowels.end())  
        { 
            str = str.replace(i, 1, ""); 
            i -= 2; 
        } 
    } 
    return str; 
} 
// this function will tell if a char is vowel or not.
bool isVowel(char ch){
    if(ch=='a' || ch=='e' || ch=='i' ||
                ch=='o' || ch=='u' || ch=='A' ||
                ch=='E' || ch=='I' || ch=='O' ||
                ch=='U'){
                    cout<<ch<<" is a vowel."<<endl;
                }
    else{
        cout<<ch<<" is a consonant."<<endl;
    }
return 0;
}