Sams Teach Yourself C in 21 Days

an int: 123

a long: 987654321

a float: 123.456

a char: A

a string: A String

a bool: 1

A number of different data types are used to declare a number of variables in

lines 6–11. In lines 14–19, you see coutbeing used with each of these variables

being redirected. As you can see by the output, all are printed.

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OUTPUT

ANALYSIS

coutrequires that the iostream.h header file be included.

Note

Understanding the C++ Keywords ....................................................................

All the keywords within the C programming language work in C++. Remember, C++ is

a superset of C. Everything in a C program will work in a C++ program. This does not,

however, mean that you should use everything you can in a C program in your C++ pro-

grams!

In addition to the C keywords, C++ adds several additional keywords. A list of the com-

monly used ANSI standard C++ keywords is presented in the list which follows. Note

that the C++ keywords that are not considered a part of C are in bold text. As you can

see, all the familiar C keywords are available. Additionally, the functionality of the C

keywords is exactly what you have already learned!

Some of the common C++ keywords

break case catch class

const continue delete do

double else float for

goto if inline int

long namespace new operator

private protected public static

struct switch throw try

union void while

Words in bold are ANSI C++ keywords not a part of the ANSI C language.

Note

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