Why Does `cin` Only Read the First Word of User Input?

Reading Complete Lines from the User with cin

When attempting to read a complete line of user input using cin, developers often encounter the issue where only the first word is captured. To address this problem, it's essential to utilize the correct method for line extraction.

In the given C code, you've employed cin >> y; to gather user input. However, this approach only reads up to the first space character, resulting in the capture of only a single word.

To read an entire line of input effectively, switch to using getline(cin, response);. Here's an updated version of your code:

#include <iostream>
#include <string>

using namespace std;

int main()
{
    char x;

    cout << "Would you like to write to a file?" << endl;
    cin >> x;
    if (x == 'y' || x == 'Y')
    {
        string response;
        cout << "What would you like to write." << endl;
        getline(cin, response); // Use getline instead of cin >>
        ofstream file;
        file.open("Characters.txt");
        file << strlen(response) << " Characters." << endl;
        file << endl;
        file << response;

        file.close();

        cout << "Done. \a" << endl;
    }
    else
    {
        cout << "K, Bye." << endl;
    }
}

By utilizing getline, you can now effectively capture entire lines of input, resolving the issue of only reading single words.

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