C++ Chapter 12

Data stored here disappears once the program stops running or the computer is powered down.

• on a CD
• in RAM
• on a backup tape
• on the hard disk

In order, the three-step process of using a file in a C++ program involves:

• Insert a disk, open a file, remove the disk
• Create the file contents, close the file, name the file
• Open the file, read/write/save data, close the file
• Name the file, open the file, delete the file

This data type can be used to create files and write information to them but cannot be used to read information from them.

• ofstream
• ifstream
• afstream
• outstream

This data type can be used to create files, read data from them, and write data to them.

• ofstream
• iftream
• fstream
• stream

Which statement opens a file and links it to a file stream object?

• open(aFile) = link(anObject);
• file.open("c:\\filename.txt");
• linkstream ("filename.txt");
• link(open(filename.txt"));

What is true about the following statement?   out.open("values.dat", ios::app);

• If the file already exists, its contents are preserved and all output is written to the end of the file
• If the file exists, it should be replaced with a new copy of values.dat
• If the file exists, it can be opened but not modified
• None of these

Which of the following statements opens the file info.txt for both input and output?

• dataFile.open("info.txt", ios::in && ios::out);
• dataFile.open("info.txt", ios::in , ios::out);
• dataFile.open("info.txt", input || output);
• dataFile.open("info.txt", ios::in | ios::out);

The _________ marker is the character that marks the end of a file, and is automatically written when the file is closed.

• End of File (EOF)
• No More Data (NMD)
• Data Stream Close (DSC)
• Data Read Stop (DRS)

This state bit can be tested to see if the end of an input stream is encountered.

• ios::eof
• ios::eofbit
• ios::failbit
• ios::badbit

This member function reads a single character from a file.

• read
• get
• put
• input