Exam 13: Working With Files

Streams are also used in C# to read and write data to binary files.

The Execution version of an application contains no debugging information and is considered an optimized solution.

Instead of hard coding the actual filename and file path, you could prompt the user for the name of the file using subclasses of the FileDialog class.

Assume that an object of the DirectoryInfo is instantiated using the identifier dirListing. How could you retrieve the names of all files stored in dirListing that have a file extension of .cs?

In C#, when data is written to a file, it is stored in sorted order by a unique key.

The ____________ class makes it easy to write data to a file because it has implementations for the Write( ) and WriteLine( ) methods.

StreamReader inFile = new StreamReader("name.txt"); While ((inValue = inFile.ReadLine()) != null) Using the above segment of code, inValue would be defined as what type of data? ​

Objects of streams can be wrapped with ____ objects to improve the speed and performance of file-handling operations.

If you use Visual Studio and include a reference to the System.IO namespace, IntelliSense provides helpful information while you are developing your file application.

Which method, used with the StreamWriter class, can be invoked to write characters to the stream, followed by a line terminator?

The ____________ method of the StreamReader class enables you to retrieve one line of text from the file.

The StreamReader class is used to create text files.

The FileDialog class has a property called ____, which is used by both the OpenFileDialog and SaveFileDialog classes to set or get the name of the file using a dialog box.

Which method is used to cause the dialog boxes to open?

TextReader is an abstract class used to write primary data types as binary values.

If you attempt to access a file and have an invalid path listed in the constructor, a(n) ____________ exception is thrown.

The GetAttributes( ) method of the File class returns a FileAttribute, like Archive, when it invoked.

The abstract classes of Stream, TextWriter, and TextReader are defined for dealing with files in the ____ namespace.

Prior to writing program statements that access data in a file, you should always check to make sure the file is available using the Available( ) method.

When a method uses a(n) ____________ modifier, the method belongs to the class itself, not to a specific object of the class and is thus called using the class name.