Sams Teach Yourself C++ in 21 Days

15: cout << “Long: “;

16: cin >> myLong;

17: cout << “Double: “;

18: cin >> myDouble;

19: cout << “Float: “;

20: cin >> myFloat;

21: cout << “Unsigned: “;

22: cin >> myUnsigned;

23:

24: cout << “\n\nInt:\t” << myInt << endl;

25: cout << “Long:\t” << myLong << endl;

26: cout << “Double:\t” << myDouble << endl;

27: cout << “Float:\t” << myFloat << endl;

28: cout << “Unsigned:\t” << myUnsigned << endl;

29: return 0;

30: }

int: 2

Long: 70000

Double: 987654321

Float: 3.33

Unsigned: 25

Int: 2

Long: 70000

Double: 9.87654e+008

Float: 3.33

Unsigned: 25

On lines 7–11, variables of various types are declared. On lines 13–22, the user

is prompted to enter values for these variables, and the results are printed (using

cout) on lines 24–28.

The output reflects that the variables were put into the right “kinds” of variables, and the

program works as you might expect.

Inputting Strings ............................................................................................

cincan also handle character pointer (char*) arguments; thus, you can create a character

buffer and use cinto fill it. For example, you can write the following:

char YourName[50]

cout << “Enter your name: “;

cin >> YourName;

If you enter Jesse, the variable YourNameis filled with the characters J, e, s, s, e, \0. The

last character is a null; cinautomatically ends the string with a null character, and you

OUTPUT

600 Day 17

LISTING17.1 continued

ANALYSIS