Question 1

____ applications require that a record be accessed immediately while a client is waiting.

Accepted Answer

A)  Sequential 
B)  Dependent 
C)  Real-time 
D)  Batch

Question 2

You can direct System.err to a new location, such as a disk file or printer, but you cannot direct System.out to a new location.

Accepted Answer

A) True 
 B)False

Question 3

A file channel is ____, meaning you can search for a specific file location and operations can start at any specified position.

Accepted Answer

A)  moveable 
B)  seekable 
C)  flexible 
D)  dynamic

Question 4

import java.nio.file.*; 
import java.io.*; 
import java.nio.channels.FileChannel; 
import java.nio.ByteBuffer; 
import static java.nio.file.StandardOpenOption.*; 
public class CreateOneRandomAccessRecord 
{ 
    public static void main(String[] args) 
    { 
       Path file = 
         Paths.get("C:\Java\Chapter.13\RandomEmployees.txt"); 
       String s = "002,Newmann,12.25" + 
         System.getProperty("line.separator"); 
       --------- Code here ------------- 
       byte[] data = s.getBytes(); 
       ByteBuffer buffer = ByteBuffer.wrap(data); 
       FileChannel fc = null; 
       try 
       { 
          fc = (FileChannel)Files.newByteChannel(file, READ, WRITE); 
          fc.position(2 * RECSIZE); 
          fc.write(buffer); 
          fc.close(); 
       } 
       catch (Exception e) 
      { 
          System.out.println("Error message: " + e); 
      } 
   } 
} 
The above program creates a single employee record for employee number 002 with a last name of Newmann and a pay rate of 12.25. In the indicated space, create a statement that assigns the length of the string to RECSIZE .

Accepted Answer

The answer of import java.nio.file.*; 
import java.io.*; 
import java.nio.channels.FileChannel; 
import...

Question 5

A data file can be used as a(n) ____ file when each record is accessed one after another in the order in which it was stored.

Accepted Answer

A)  application 
B)  sequential access 
C)  stream 
D)  field

Question 6

Match between columns
                        Premises: To make files no longer available to your application
The main directory of your storage device
Returns the default line separator for a system
Writes text to an output stream, buffering the characters
Functions as a pipeline or channel between a Java program and an input device
Clears any bytes that have been sent to a buffer for output but have not yet been output to a hardware device
The memory location where bytes are held after they are logically output but before they are sent to the output device
Involves performing the same tasks with many records
A collection of related records

Accepted Answer

The Answer of System.getProperty("line.separator") and close the files and stream is...

Exam 13: File Input and Output

____ applications require that a record be accessed immediately while a client is waiting.

You can direct System.err to a new location, such as a disk file or printer, but you cannot direct System.out to a new location.

A file channel is ____, meaning you can search for a specific file location and operations can start at any specified position.

A data file can be used as a(n) ____ file when each record is accessed one after another in the order in which it was stored.

Match each term with the correct statement below.