CMSY 141 - Chapter 3
The ________ operator follows the cout object
<<
A debugging process where you, the programmer, pretend you are a computer and step through each statement while recording the value of each variable at each step is known as
hand tracing
Which of the following must be included in any program that uses the cin object?
iostream
When a user types values at the keyboard, those values are first stored
keyboard buffer
This manipulator causes the field to be left justified with padding spaces printed to the right
left
Associativity is either right to left or
left to right
When a variable is assigned a number that is too large for its data type, it
overflows
Which of the following functions will return the value of x, rounded to the nearest whole number?
round(x)
You can control the number of significant digits in your output with the ________ manipulator
setprecision
This manipulator is used to establish a field width for the value that follows it
setw
When C++ is working with an operator, it strives to convert operands to the same type. This is known as
type coercion
The ________ operator always follows the cin 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
To use the rand()function, you must include the ________ header file?
cstdlib
When the final value of an expression is assigned to a variable, it will be converted to the variables
data type
This manipulator forces cout to print digits in fixed-point notation
fixed
The cin >> statement will stop reading input when it encounters a newline character.
True
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
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.
cin object
Which of the following statements will pause the screen until the [Enter] key is pressed?
cin.get()
________ reads a line of input, including leading and embedded spaces, and stores it in a string object.
cin.getline()
Which of the following functions tells the cin object to skip one or more characters in the keyboard buffer?
cin.ignore()
The function pow(x, y), requires which header file?
cmath