06 File Input and Output

Question 1

It returns the String representation of the Path, eliminating double backslashes.

Answer 1

String toString()

Question 2

Exception that is thrown if there is an attempt to delete a file without permission.

Answer 2

SecurityException

Question 3

What are the common characteristics of a text file and binary file?

Answer 3

Size
Name
Date
Time of creation

Question 4

It depends on other path information.

Answer 4

relative path

Question 5

Is a collection of fields that contain data about an entity. It is grouped to create files.

Answer 5

record

Question 6

Method that writes a single character.

Answer 6

write(int c)

Question 7

Method that skips the specified number of characters.

Answer 7

skip(long n)

Question 8

Storage that is permanent. It is saved on a disk.

Answer 8

Non-volatile Storage

Question 9

Method that flushes the stream.

Answer 9

flush()

Question 10

It is a complete path; it does not require any other information to locate a file on a system.

Answer 10

absolute path

Question 11

It returns the name in position of the Path specified by the integer parameter.

Answer 11

Path getName(int)

Question 12

When each record in a file is accessed one after another in the order in which it was stored, the data file is used as a ________ .

Answer 12

sequential access file

Question 13

Method that can be used to remove a file without encountering an exception if the file does not exist.

Answer 13

deleteIfExists()

Question 14

It is being used when a Java program stores a value in a variable.

Answer 14

Random Access Memory (RAM)

Question 15

Exception that is thrown if there is an attempt to delete a directory that has files.

Answer 15

DirectoryNotEmptyException

Question 16

What are the Path methods? (4)

Answer 16

String toString()
Path getFileName()
int getNameCount()
Path getName(int)

Question 17

Exception that is thrown if there is an attempt to delete a file that does not exist.

Answer 17

NoSuchFileException

Question 18

It is a memory location into which you can write data, which you can read again later.

Answer 18

buffer

Question 19

It performs operations on files and directories , such as determining their attributes, creating input and output streams, and deleting them.

Answer 19

Files class

Question 20

Argument that opens the file if it exists or creates a new file if it hasn’t existed yet.

Answer 20

CREATE

Question 21

What two (2) arguments that the readAttributes() method take?

Answer 21

Path object and BasicFileAttributes.class

Question 22

What are the IO Classes? (10)

Answer 22

InputStream
FileInputStream
BufferedInputStream
OutputStream
FileOutputStream
BufferedOutputStream
PrintStream
Reader
BufferedReader
BufferedWriter

Question 23

It is the flow of data.

Answer 23

stream

Question 24

It is the smallest useful piece of data.

Answer 24

character

Question 25

It is a method that returns the size o the file in bytes.

Answer 25

size()

Question 26

What are the common methods of the OutputStream Class? (4)

Answer 26

void close() void flush() void write(byte[] b) void write(byte[] b, int off, int len)

Question 27

It creates objects that contain information about files and directories, such as sizes, locations, creation dates, and is used to check whether a file or directory exists.

Answer 27

Path class

Question 28

Method that is used to convert a relative path to an absolute path.

Answer 28

toAbsolutePath()

Question 29

Is a group of character that has some meaning. It is group together to form records.

Answer 29

field

Question 30

A record's fields cannot be organized into a single line or can be separated by a character. True or False?

Answer 30

False

Question 31

Argument that opens the file for writing.

Answer 31

WRITE

Question 32

What are the methods of the BufferedReader Class?

Answer 32

close() read() read(char[] buffer, int off, int len) readLine() skip(long n)

Question 33

Method that is used to create a writable file.

Answer 33

newOutputStream()

Question 34

A type of stream where data data is taken from a source and is delivered into a program.

Answer 34

input stream

Question 35

Method used to verify if a file exists and if a program can access it when needed.

Answer 35

checkAccess()

Question 36

Argument that checks whether the file exists and whether the program has permission to execute the file.

Answer 36

EXECUTE

Question 37

Method that reads a single character.

Answer 37

read()

Question 38

Argument that appends new data to the end of the file.

Answer 38

APPEND

Question 39

Flushes the output stream; if any bytes are buffered, they will be written.

Answer 39

void flush()

Question 40

It returns the file or directory denoted by this Path; this is the last item in the sequence of name elements.

Answer 40

Path getFileName()

Question 41

What are the methods of the BufferedWriter?

Answer 41

close() flush() newline() write(String s, int off, int len) write(char[] array, int off, int len) write(int c)

Question 42

Method that writes a character array from position off for length len.

Answer 42

write(char[] array, int off, int len)

Question 43

It is a method that returns the date and time the file was last edited.

Answer 43

lastModifiedTime()

Question 44

Handles input from a system's standard or default input device.

Answer 44

BufferedInputStream

Question 45

Values in a record that are separated by commas are called?

Answer 45

comma-separated values

Question 46

What the two (2) types of storage devices?

Answer 46

Volatile storage and Non-volatile storage

Question 47

Method that writes a String from position off for length len.

Answer 47

write(String s, int off, int len)

Question 48

Arguments passed in the newOutputStream are Path and StandardOpenOption. True or False?

Answer 48

True

Question 49

Method that reads a line of text.

Answer 49

readLine()

Question 50

Writes all bytes to the output stream from the specified byte array.

Answer 50

void write(byte[] b)

Question 51

Is the format for creation time mm-dd-yyyyThh:mm:ss? True or False?

Answer 51

False. The format is: yyyy-mm-ddThh:mm:ss

Question 52

Method that closes the stream, flushing it first.

Answer 52

close()

Question 53

Contains methods for performing output that never throws an exception.

Answer 53

PrintStream

Question 54

Abstract class that contains method for performing output.

Answer 54

OutputStream

Question 55

It compares the relationship between values retrieved from creationTime() or lastModifiedTime().

Answer 55

compareTo()

Question 56

It consists of data that can be read in a text editor.

Answer 56

Text file

Question 57

What are the arguments of the checkAccess() method? (4)

Answer 57

None READ WRITE EXECUTE

Question 58

What is the import used to use both the Path and Files class?

Answer 58

import java.nio.file.*;

Question 59

Abstract class for reading character streams.

Answer 59

Reader

Question 60

Permanent files are commonly stored in the home directory. True or False?

Answer 60

False. It is commonly stored in the main directory and root directory.

Question 61

Writes text to a character-output stream, buffering characters to provide for efficient writing of characters, arrays, and lines.

Answer 61

BufferedWriter

Question 62

Method used to retrieve useful information about a file.

Answer 62

readAttributes()

Question 63

Abstract class that contains method for performing input.

Answer 63

InputStream

Question 64

The complete list of the disk drive plus the hierarchy of directories in which the file is located is called ______ .

Answer 64

path

Question 65

Closes the output stream and releases any system resources associated with the stream.

Answer 65

void close()

Question 66

Argument that checks whether the file exists and whether the program has permission to read the file.

Answer 66

READ

Question 67

Argument that creates a new file only if it hasn't existed yet; it throws an exception if the file already exists.

Answer 67

CREATE_NEW

Question 68

Writes bytes to the output stream form the specified byte array starting at offset position off for a length of len characters.

Answer 68

void write(byte[] b, int off, int len)

Question 69

What are the two (2) categories of a file?

Answer 69

Text file and binary file

Question 70

It contains data that is not encoded as text.

Answer 70

Binary file

Question 71

Argument that checks whether the file exists.

Answer 71

None

Question 72

Method of the Files class that is used to open a file for reading.

Answer 72

newInputStream()

Question 73

Provides the capability to read disk from files

Answer 73

FileInputStream

Question 74

Method of the Files class that accepts a Path parameter and removes the last element in a path or throws an exception if unsuccessful.

Answer 74

delete()

Question 75

Argument that deletes the file when the stream is closed; mostly used for temporary files that exist only for the duration of the program.

Answer 75

DELETE_ON_CLOSE

Question 76

It returns the number of name elements in the Path

Answer 76

int getNameCount()

Question 77

It consists of related records.

Answer 77

file

Question 78

Method that reads characters into a portion of a array rom position off for len characters.

Answer 78

read(char[] buffer, int off, int len)

Question 79

It is a method that returns the date and time the file was created.

Answer 79

creationTime()

Question 80

It clears any bytes that have been sent to a buffer for output but have not yet been displayed on a hardware device.

Answer 80

flushing

Question 81

It is a collection of data stored on a non-volatile device.

Answer 81

Computer File

Question 82

What are the arguments of the StandardOpenOption?

Answer 82

WRITE APPEND TRUNCATE_EXISTING CREATE_NEW CREATE DELETE_ON_CLOSE

Question 83

Storage that is temporary. Values are lost when the computer loses its power.

Answer 83

Volatile Storage

Question 84

Method that writes a line separator.

Answer 84

newline()

Question 85

Argument that truncates the existing file to 0 yte so the file contents are replaced.

Answer 85

TRUNCATE_EXISTING

Question 86

It is a special character used to separate path components.

Answer 86

(\) path delimiter

Question 87

The readAttributes() method returns an instance of the BasicFileAttributes.class. True or False?

Answer 87

True

Question 88

Method that closes the stream and any resources associated with it.

Answer 88

close()

Question 89

Provides the capability to write to disk files.

Answer 89

FileOutputStream

Question 90

Reads text from a character-input stream, buffering characters to provide efficient reading of characters, arrays, and lines.

Answer 90

BufferedReader

Question 91

Handles input form a system's standard or default output device.

Answer 91

BufferedOutputStream

Question 92

Argument that checks whether the file exists and whether the program has permission to write to the file.

Answer 92

WRITE

Question 93

A type of stream where data is delivered from a program to a destination.

Answer 93

output stream

Question 94

What are the methods of the BasicFileAttributes?

Answer 94

size() creationTime() lastModifiedTime() compareTo()