Input/output
the iostream header file
In any program that uses the cin object, you must #include __
expression
Program code that can be evaluated to a value is called a
cin
The ________ object causes data to be input from the keyboard.
>> , <<
The ________ operator always follows the cin object, and the ________ operator follows the cout object.
setw
The ________ stream manipulator can be used to establish a field width for the value immediately following it.
one or more stream extraction (>>) operators
The cin object must be followed by ________.
does none of above
The statement cout << setw(4) << num4 << " "; ________.
All the above statements must be true.
Before a program can read data from a file, which of the following must be true?
The file must be opened.
Before a program can read data from a file, which of the following must be true?
The file must exist and data to be read from it must have been previously stored in it.
Before a program can read data from a file, which of the following must be true?
The program must define a file stream object to associate with the file.
Before a program can read data from a file, which of the following must be true?
There must be a #include directive in the program.
Before a program can read data from a file, which of the following must be true?
iomanip
To use stream manipulators, you should include the ________ header file.
FALSE
True/False: If the value of dollars is 5.0, the following statement will output 5.00 to the monitor: cout << fixed << showpoint << setprecision(4) << dollars << endl;
TRUE
True/False: The cin object can be used to input more than one value in a single statement.
FALSE
True/False: The cin object lets the user enter a string that contains embedded blanks.
FALSE
True/False: The setw manipulator is used to set the precision of a number.
The cin object
________ causes a program to wait until information is typed at the keyboard and the Enter key is pressed.