/*********************************** * PHONE NUMBER CONVERTER * * * * This program takes phone. * * numbers in alphmum format * * and converts to digit only. * * * * Example Input: 1-800-Steamer. * * * * Example Output: 1-800-783-2637 * * * ***********************************/ #include #include using namespace std; int main() { string phoneStr; // User input: Phone number string int i; // Loop index, current element in phone number string char currChar; // Current char in phone number string cout << "Enter phone number: " << endl; cin >> phoneStr; cout << "Numbers only: "; for (i = 0; i < phoneStr.size(); ++i) { // For each element currChar = phoneStr.at(i); if (((currChar >= '0') && (currChar <= '9')) || (currChar == '-')) { cout << currChar; // Print element as is } else if ( ((currChar >= 'a') && (currChar <= 'c')) || ((currChar >= 'A') && (currChar <= 'C')) ) { cout << "2"; } else if ( ((currChar >= 'd') && (currChar <= 'f')) || ((currChar >= 'D') && (currChar <= 'F')) ) { cout << "3"; } else if ( ((currChar >= 'g') && (currChar <= 'i')) || ((currChar >= 'G') && (currChar <= 'I')) ) { cout << "4"; } else if ( ((currChar >= 'j') && (currChar <= 'l')) || ((currChar >= 'J') && (currChar <= 'L')) ) { cout << "5"; } else if ( ((currChar >= 'm') && (currChar <= 'o')) || ((currChar >= 'M') && (currChar <= 'O')) ) { cout << "6"; } else if ( ((currChar >= 'p') && (currChar <= 's')) || ((currChar >= 'P') && (currChar <= 'S')) ) { cout << "7"; } else if ( ((currChar >= 't') && (currChar <= 'v')) || ((currChar >= 'T') && (currChar <= 'V')) ) { cout << "8"; } else if ( ((currChar >= 'w') && (currChar <= 'z')) || ((currChar >= 'W') && (currChar <= 'Z')) ) { cout << "9"; } else { cout << '?'; } } cout << endl; return 0; }

Phone Number Converter