C++ Chapter 3

In any program that uses the cin object, you must include the ________.

iostream header file

When this operator is used with string operands it concatenates them, or joins them together.

+

The ________ operator always follows the cin object, and the ________ operator follows the cout object.

>>, <<

Arithmetic operators that share the same precedence have right to left associativity.

FALSE

If you want to know the length of the string that is stored in a string object, you can call the object's size member function.

FALSE

In C++, it is impossible to display the number 34.789 in a field of 9 spaces with 2 decimal places of precision.

FALSE

The fixed manipulator causes a number to be displayed in scientific notation.

FALSE

The following statement will output $5.00 to the screen: cout << setprecision(5) << dollars << endl;

FALSE

When a program uses the setw manipulator, the iosetwidth header file must be included in a preprocessor directive.

FALSE

You can use these to override the rules of operator precedence in a mathematical expression.

(Parentheses)

const variables must always be:

initialized. C++ will throw an error if you decide to declare it without initializing it.

This manipulator causes the field to be left-justified with padding spaces printed to the right.

left

When a variable is assigned a number that is too large for its data type, it:

overflows

This manipulator is used to establish a field width for the value immediately following it.

setw

When the fixed manipulator is used, the value specified by the setprecision manipulator will be the number of digits to appear after the decimal point.

TRUE

The ________ causes a program to wait until information is typed at the keyboard and the Enter key is pressed

The ________ causes a program to wait until information is typed at the keyboard and the Enter key is pressed

When the final value of an expression is assigned to a variable, it will be converted to:

The data type of the variable

The cin << statement will stop reading input when it encounters a newline character.

TRUE

The total number of digits that appear before and after the decimal point is sometimes referred to as

significant digits, precision

Which statement is equivalent to the following? x = x * 2;

x *= 2;

This statement will pause the screen, until the [Enter] key is pressed.

cin.get();

Associativity is either right to left or:

Left to right

The statement:cin >> setw(10) >> str;will read up to this many characters into str.

Nine

When converting some algebraic expressions to C++, you may need to insert ________ that do not appear in the algebraic expression.

Parentheses

The only difference between the get function and the >> operator is that get reads the first character typed, even if it is a space, tab, or the [Enter] key.

TRUE

When C++ is working with an operator, it strives to convert the operands to the same type.

TRUE

You want the user to enter the length, width, and height from the keyboard. Which cin statement is correctly written?

cin.get(length, width, height);

This function tells the cin object to skip one or more characters in the keyboard buffer.

cin.ignore

The function, pow(x, 5.0), requires this header file.

cmath

When using the sqrt function you must include this header file.

cmath

To use the rand() function, you must #include this header file in your program.

cstdlib

This stream manipulator forces cout to print the digits in fixed-point notation.

fixed

________ reads a line of input, including leading and embedded spaces, and stores it in a string object.

getline

Which statement will read an entire line of input into the following string object? string address;

getline(cin, address);

What is the value stored at x, given the statements: int x; x = 3 / static_cast<int>(4.5 + 6.4);

0