3.14 Character Operations

To what value does each evaluate? userStr is "Hey #1?". True or False. isalpha('7')

To what value does each evaluate? userStr is "Hey #1?". True or False. isalpha(user.Str.at(0))

To what value does each evaluate? userStr is "Hey #1?". True or False. isdigit(user.Str.at(6))

To what value does each evaluate? userStr is "Hey #1?". True or False. toupper(userStr.at(1)) returns 'E'.

To what value does each evaluate? userStr is "Hey #1?". True or False. tolower(user.Str.at(2)) yields an error because 'y' is already lower case.

To what value does each evaluate? userStr is "Hey #1?". True or False. tolower(user.Str.at(6)) yields an error because '?' is not alphabetic.

To what value does each evaluate? userStr is "Hey #1?". True or False. After tolower(user.Str.at(0)), usrStr becomes "hey #1?"

Set hasDigit to true if the 3-character passCode contains a digit. #include #include #include using namespace std; int main() { bool hasDigit; string passCode; hasDigit = false; passCode = "abc"; /* Your solution goes here */ if (hasDigit) { cout << "Has a digit." << endl; } else { cout << "Has no digit." << endl; } return 0; }

Replace any space ' ' with '_' in 2-character string passCode. Sample output for the given program: 1_ #include #include #include using namespace std; int main() { string passCode; passCode = "1 "; /* Your solution goes here */ cout << passCode << endl; return 0; }