PLEASE PROVIDE A PROGRAM FOR THE FOLLOWING QUESTION WITHOUT ANY ERRORS. This is
ID: 3930437 • Letter: P
Question
PLEASE PROVIDE A PROGRAM FOR THE FOLLOWING QUESTION WITHOUT ANY ERRORS.
This is a C++ programing assignment
Problem 2. write a c++ program which will take a filename from the command line and count the vowels contained therein. For the purposes of this problem, the vowels are a, e, i, o, u, and their uppercase equivalents. Choose your own files for testing. The graders will choose theirs, too.
Hint: if you declare a string
string vowels = "aAeEiIoOuU";
then the function call vowels.find(ch) will return a non-null pointer if ch is a vowel.
Explanation / Answer
VowelsCount.cpp
#include <iostream>
#include<fstream>
using namespace std;
int main(int argc, char *argv[])
{
if(argc == 2){
ifstream fin;
fin.open(argv[1], ios::in);
string vowels = "aAeEiIoOuU";
char ch ;
int volwelsCount = 0;
while (!fin.eof() ) {
fin.get(ch);
if (vowels.find(ch) != std::string::npos ){
++volwelsCount;
}
}
cout << "Number of Vwels in a file: " << volwelsCount << endl;
}
else{
cout<<"Invalid command line arguements"<<endl;
}
return 0;
}
Output:
sh-4.3$ g++ -std=c++11 -o main *.cpp
sh-4.3$ main
Invalid command line arguements
sh-4.3$ ./main input.txt
Number of Vwels in a file: 8
input.txt
abcdefj abcioewu
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