I need a program that will remove all vowels from a string. I am kind of close t

ID: 3633335 • Letter: I

Question

I need a program that will remove all vowels from a string. I am kind of close to the result I think but I need someone to expand on what I have here without any additional headers and trying to mostly keep what's already here, just change around and add what needs to be added to get the correct result. I cannot figure out what I'm doing wrong. Also, in solving it, please provide explanation in the form of comments as to why you did what you did.

//Program will remove all vowels from a user inputted string and output the string sans vowels.

#include <iostream> //Header file declaration.
#include <string>

using namespace std;

bool vowelDef(int vowel); //Prototype for my function.
void removeVowel(string& str);

int main() //Main function, will be executed first.
{
string string1, string2;

cout << "Enter a string: ";

removeVowel(string2);

cout << "After removing vowels: " << string2 << endl;

system ("pause");

return 0;

}

void removeVowel(string& str)

{
for (int vowel = 0; vowel < str.length(); vowel++)
{
if (vowelDef(str.erase[vowel, 1]));
}
}

bool vowelDef(int vowel)

{
string string1;

cin >> string1;

cout << "Before removing vowels: " << string1 << endl;

if (string1[vowel] =='A' || 'a' || 'E' || 'e'|| 'I' || 'i'|| 'O' || 'o' || 'U' || 'u')
string1.erase(string1[vowel], 1);

}

Explanation / Answer

#include <iostream> //Header file declaration.
#include <string>
using namespace std;

//prototype for vowel definition function
bool vowelDef(char vowel);
//Prototype for removing vowel character from given string
void removeVowel(string& str);

int main() //Main function, will be executed first.
{
   string string1;
   cout << "Enter a string: ";
   cin >> string1;//Reading user input string
   cout << "Before removing vowels: " << string1 << endl;//Printing Input
   removeVowel(string1);//Calling removeVowel function
   cout << "After removing vowels: " << string1 << endl;//Printing Output
   system ("pause");
   return 0;
}

//This is the function for removing the vowels from given string.
//string& str --> indicates pass by reference. it means, the original
//variable will be modified, no need to return new string
void removeVowel(string& str)
{
   string newString="";//Temporary string for saving the result
   //Loop through all the character in the given string and check whether
   //is a vowel or not. If it is not vowel then add to new string
   for (int vowel = 0; vowel < str.length(); vowel++)
   {
       //Condition for checking the given character is vowel or not
       if (!vowelDef(str[vowel]))
       {
           //If given character is not a vowel, then add to output
           newString = newString + str[vowel];
       }
   }
   str = newString;//Assigning it back to original string
}

//Function for checking given character is vowel or not
bool vowelDef(char vowel)
{
   //if the input character is not a,A,e,E,i,I,o,O,u,U then it will return false else return true
   if (vowel =='A' || vowel =='a' || vowel =='E' || vowel =='e'|| vowel =='I' || vowel =='i'|| vowel =='O' || vowel =='o' || vowel =='U' || vowel =='u')
       return true;
   return false;
}

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