C++ Examples

WAP in C++ to Print Given integer with commas as thousands separators

The Program in C++ to Print Given integer with commas as thousands of separators is given below:

#include <iostream>
#include <sstream>
#include <string>
#include <locale>
#include <iomanip>

using namespace std;

string formatWithCommas(int num)
{
    stringstream ss;
    ss.imbue(locale(""));
    ss << fixed << setprecision(0) << num;
    return ss.str();
}

int main()
{
    int num;
    cout << "Hello Codeauri Family,Enter an integer here: ";
    cin >> num;

    cout << "Well, the Formatted integer are: " << formatWithCommas(num) << endl;
    return 0;
}

Output:

Hello Codeauri Family,Enter an integer here: 90000
Well, the Formatted integer are: 90,000

Pro-Tips💡

This program uses the formatWithCommas function to print a given integer num with commas as thousands separators.

The function uses a stringstream to store the formatted integer and sets the locale to the default locale using imbue.

The function then sets the precision of the stringstream to 0 and inserts the integer into the stringstream.

The str method of the stringstream is used to return the formatted string.

The main function takes an input integer from the user and calls the formatWithCommas function to get the formatted string, then outputs the result.

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