Question 1

If an invalid path is listed in the constructor for the StreamWriter object, you will be prompted to reenter the file name.

Accepted Answer

A) True 
 B)False

Question 2

The StreamReader's Peek( ) method returns the next available character but does not consume it.

Accepted Answer

A) True 
 B)False

Question 3

The StreamReader class is most often used to retrieve single characters, one character at a time, from a file.

Accepted Answer

A) True 
 B)False

Question 4

BinaryReader and BinaryWriter classes ____.

Accepted Answer

A)  expose only static members 
B)  are used to read and write character strings to files 
C)  offer streaming functionality oriented toward binary data types 
D)  are abstract classes

Question 5

If you do not specify the full path for the filename, Visual Studio uses the ____________  subdirectory of the current project.

Accepted Answer

The answer of If you do not specify the full...

Question 6

In order to invoke the Copy( ) method of the File class, instantiate an object of the File class and send as an argument a filename.

Accepted Answer

A) True 
 B)False

Question 7

To  ensure that the data is usable for the next application the ____________ method should be invoked before you exit the application.

Accepted Answer

The answer of To  ensure that the data is usable for...

Question 8

In order to remove a StreamWriter object named writer, which is associated with a file in the project directory called "test.dta", you would write ____.

Accepted Answer

A)  File.Delete("test.dta") 
B)  File.Delete(writer) 
C)  writer.Delete("test.dta") 
D)  writer.Delete( )

Question 9

File and Directory classes add functionality to their method members beyond that of FileInfo and DirectoryInfo classes.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is a static member of the Directory class?

Accepted Answer

A)  Encrypted 
B)  AppendText( ) 
C)  Exists( ) 
D)  DirectoryPath( )

Question 11

With Visual Studio when you create a file (or attempt to access one), if a path is not  specified with the filename, the Apps\Debug subdirectory of the current project is used.

Accepted Answer

A) True 
 B)False

Question 12

StreamWriter outputFile = new StreamWriter("someOutputFileName");
StreamReader inputFile = new StreamReader("someInputFileName");
The identifier that can be referenced in a WriteLine( ) method with the declaration above is ____.

Accepted Answer

A)  someOutputFileName 
B)  someInputFileName 
C)  outputFile 
D)  inputFile

Question 13

The constructor for the StreamWriter can include additional arguments indicating whether the file should be appended to or overwritten if it already exists.

Accepted Answer

A) True 
 B)False

Question 14

If an invalid path is included with the constructor for a StreamWriter object, ____.

Accepted Answer

A)  an InValidPathException is thrown 
B)  a System exception occurs 
C)  an IOException exception is thrown 
D)  the program terminates

Question 15

Which of the following class belongs to the System.IO namespace?

Accepted Answer

A)  FileNotFoundException 
B)  DirectoryException 
C)  EndOfStreamException 
D)  System.InvalidException

Question 16

The ____________ class  provides static methods that aid in creating and moving through folders and subdirectories.

Accepted Answer

The answer of The ____________ class  provides static methods that aid...

Question 17

A structure  is a special form of value type that supplies alternate names for the values of an underlying primitive type.

Accepted Answer

A) True 
 B)False

Question 18

No exception is thrown if you attempt to close or open a file that does not exist.

Accepted Answer

A) True 
 B)False

Question 19

If a StreamReader object named reader is instantiated and associated with a file stored in the project directory named "test.dta", which of the following statements would check to see if the "test.dta" exists?

Accepted Answer

A)  if (File.Exists("test.dta")) 
B)  if (File.Exists(reader)) 
C)  if (reader.Exists("test.dta")) 
D)  if (reader.Exists( ))

Question 20

To avoid fully qualifying references to objects of the StreamReader class, include a using statement with the System.StreamReader namespace.

Accepted Answer

A) True 
 B)False

Exam 13: Working With Files

If an invalid path is listed in the constructor for the StreamWriter object, you will be prompted to reenter the file name.

The StreamReader's Peek( ) method returns the next available character but does not consume it.

The StreamReader class is most often used to retrieve single characters, one character at a time, from a file.

BinaryReader and BinaryWriter classes ____.

If you do not specify the full path for the filename, Visual Studio uses the ____________ subdirectory of the current project.

In order to invoke the Copy( ) method of the File class, instantiate an object of the File class and send as an argument a filename.

To ensure that the data is usable for the next application the ____________ method should be invoked before you exit the application.

In order to remove a StreamWriter object named writer, which is associated with a file in the project directory called "test.dta", you would write ____.

File and Directory classes add functionality to their method members beyond that of FileInfo and DirectoryInfo classes.

Which of the following is a static member of the Directory class?

With Visual Studio when you create a file (or attempt to access one), if a path is not specified with the filename, the Apps\Debug subdirectory of the current project is used.

StreamWriter outputFile = new StreamWriter("someOutputFileName") ; StreamReader inputFile = new StreamReader("someInputFileName") ; The identifier that can be referenced in a WriteLine( ) method with the declaration above is ____.

The constructor for the StreamWriter can include additional arguments indicating whether the file should be appended to or overwritten if it already exists.

If an invalid path is included with the constructor for a StreamWriter object, ____.

Which of the following class belongs to the System.IO namespace?

The ____________ class provides static methods that aid in creating and moving through folders and subdirectories.

A structure is a special form of value type that supplies alternate names for the values of an underlying primitive type.

No exception is thrown if you attempt to close or open a file that does not exist.

If a StreamReader object named reader is instantiated and associated with a file stored in the project directory named "test.dta", which of the following statements would check to see if the "test.dta" exists?

To avoid fully qualifying references to objects of the StreamReader class, include a using statement with the System.StreamReader namespace.