CBSE Class 12 Computer Science File Handling MCQs Set B

Question: Character Stream classes are present in java.io package deal with the_______/ text data.

a) Byte

b) Character

c) Both (A) and (B)

d) None of these

Answer: Character

Question: ________stream classes present in java.io package deal with binary data.

a) Byte

b) Character

c) Both (A) and (B)

d) None of these

Answer: Byte

Question:

In the box A, the answer will be________

a) Stream

b) Byte

c) Output

d) Input

Answer: Stream

Question:

In the box B, the answer will be_______

a) Stream

b) Byte

c) Output

d) Input

Answer: Byte

Question:

In the box C, the answer will be______

a) Stream

b) Byte

c) Output

d) Character

Answer: Character

Question:

In the box D, the answer will be______

a) Stream

b) Input

c) Output

d) Character

Answer: Input

Question:

In the box E, the answer will be____

a) Stream

b) Byte

c) Output

d) Character

Answer: Output

Question:

In the box F, the answer will be_______

a) Reader

b) Byte

c) Output

d) Input

Answer: Reader

Question: Java streams can be classified into______basic types.

a) One

b) Two

c) Three

d) Four

Answer: Two

Question: Java streams are namely input stream and_________stream.

a) Stream

b) Byte

c) Output

d) Character

Answer: Output

Question: The_________stream reads data from the source (file, keyboard).

a) Stream

b) Input

c) Output

d) Character

Answer: Input

Question: The_______stream writes data to the destination (file, output device).

a) Stream

b) Byte

c) Output

d) Character

Answer: Output

Question: The______package contains a collection of stream classes that support reading and writing in a file.

a) Java.io

b) Java.util

c) Java.package

d) All of these

Answer: Java.io

Question: _______stream classes are a group of classes available in java.io package.

a) Input

b) Byte

c) Output

d) Character

Answer: Character

Question: Character stream classes can be used to read and write________Unicode characters.

a) 8 bit

b) 16 bit

c) 32 bit

d) 64 bit

Answer: 16 bit

Question: _______stream classes can be further classified into reader and writer classes.

a) Input

b) Byte

c) Output

d) Character

Answer: Character

Question: ________classes are a group of classes designed to read characters from files.

a) Writer

b) Reader

c) Output

d) Input

Answer: Reader

Question: The______classes are a group of classes designed to write characters into a file.

a) Writer

b) Reader

c) Character

d) Byte

Answer: Writer

Question: Writer classes are inherited from the_______class.

a) Object

b) Writer

c) Reader

d) Character

Answer: Object

Question: Writer classes are______classes (classes that cannot be used to create an object) and come with set of methods to be implemented by its sub classes.

a) Intellectual

b) Abstract

c) Byte

d) Java.io

Answer: Abstract

Question: Input Stream Reader and Buffered Reader are the subclass of_______class.

a) Object

b) Writer

c) Reader

d) Character

Answer: Reader

Question: ______class is the subclass of Input Stream Reader class.

a) File Reader

b) File Writer

c) File java

d) Java File

Answer: File Reader

Question: Output Stream Writer, Buffered Writer and Print Writer are the sub classes of_______class.

a) Object

b) Writer

c) Reader

d) Character

Answer: Writer

Question: File Writer class is the_______of Output Stream Writer class.

a) Super class

b) Sub.io

c) Sub class

d) Base class

Answer: Sub class

Question: Writer class is the______for writing a character stream.

a) Super class

b) Sub.io

c) Subclass

d) Baseclass

Answer: Baseclass

Question: The abstract_______class defines the functionality that is available for all character output streams.

a) Object

b) Writer

c) Reader

d) Character

Answer: Writer

Question: Methods of______class are used by its sub classes.

a) Writer

b) Object

c) Reader

d) Character

Answer: Writer

Question: The writer method______closes the stream.

a) Void write (int)

b) Void close ()

c) Void write (Strings)

d) All of these

Answer: Void close ()

Question: The writer method_______writes string 's' to the stream.

a) Void write (int C)

b) Void close ()

c) Void write(String s)

d) All of these

Answer: Void write(String s)

Question: The writer method________writes the lower 16 bits of 'c' to the stream.

a) Void write (int C)

b) Void close 0

c) Void write(String s)

d) All of these

Answer: Void write (int C)

Question: The Output Stream_______class extends Writer class.

a) Writer

b) Object

c) Reader

d) Character

Answer: Writer

Question: The_______converts stream of characters to a stream of bytes.

a) Input Stream

b) Output Stream

c) Reader Stream

d) Writer Stream

Answer: Output Stream

Question: The File Writer class extends______Writer and outputs characters to a file.

a) Input Stream

b) Output Stream

c) Reader Stream

d) Writer Stream

Answer: Output Stream

Question: The File Writer class has________constructor which throws IO Exception

a) File Writer (String file path)

b) File Writer (File file obj)

c) File Writer (String file path, Boolean append)

d) All of these

Answer: All of these

Question: Which of the following constructor is of File Writer Class ?

a) File Writer (String file path)

b) File Reader (File file obj)

c) File Writer constructor

d) All of these

Answer: File Writer (String file path)

Question: In the constructor "__________", if append is true, characters are appended to the end of file, otherwise the existing contents of the file are overwritten.

a) File Writer (String file path)

b) File Writer (File file obj)

c) File Writer (String file path, Boolean append)

d) None of these

Answer: File Writer (String file path, Boolean append)

Question: In the following example - an object of_______can be created. File Writerfwobject = new File Writer ("/Java/files/Charfilel.txt");

a) File Stream

b) File Writer

c) File Reader

d) File Demo

Answer: File Writer

Question: It is important to close the stream______after writing to a file is accomplished.

a) Object

b) Reader

c) File

d) Directory

Answer: Object

Question: _______files consume system resources and depending on the file mode.

a) Closed

b) Large

c) Small

d) Open

Answer: Open

Question: ________class is the base class for reading a character stream.

a) Object

b) Reader

c) File

d) Directory

Answer: Reader

Question: The abstract_______class defines the functionality that is available for all character input streams.

a) Object

b) Reader

c) File

d) Directory

Answer: Reader

Question: ______class should be used in program to perform read operations.

a) File Stream

b) File Writer

c) File Reader

d) File Demo

Answer: File Reader

Question: _________method of Reader class closes the stream.

a) Void close()

b) Int read()

c) Void read()

d) None of these

Answer: Void close()

Question: ________method of Reader class, reads next available character from the stream, it returns "-1" to indicate the end of stream.

a) Void close 0

b) Int read()

c) Void read()

d) None of these

Answer: Int read()

Question: The Input Stream Reader class extends______class.

a) Stream

b) Writer

c) Reader

d) Demo

Answer: Reader

Question: _______class converts a stream of bytes to a stream of characters.

a) Stream

b) Writer

c) Reader

d) Demo

Answer: Reader

Question: The_______class extends Input Stream Reader class and reads characters from a file.

a) File Stream

b) File Writer

c) File Reader

d) File Demo

Answer: File Reader

Question: Which of the following is a File Reader constructor ?

a) File Reader (String file path)

b) File Reader (File file obj)

c) Both (A) and (B)

d) None of these

Answer: Both (A) and (B)

Question: Which of the following is not a File Reader constructor ?

a) File Reader (String file path)

b) File Reader (File file obj)

c) Both (A) and (B)

d) File Reader(int i, int j)

Answer: File Reader(int i, int j)

Question: In the following example - an object of_______can be created. File Reader frobject = new File Reader ("/Java/flles/Charfflel.txt");

a) File Reader

b) File Writer

c) Both (A) and (B)

d) File Demo

Answer: File Reader

Question: While reading from a file,______must identify that the file has ended.

a) Program

b) Code

c) Class

d) Method

Answer: Program

Question: The Java_______method returns "-1" to identify the end of data in the stream.

a) Close()

b) Read()

c) Print()

d) Write()

Answer: Read()

Question: The______and_______classes in the java.io package, gives the ability to read and write from and into files in the disk.

a) File lnput Stream

b) File Output Stream

c) File Reader Stream

d) Both (A) and (B)

Answer: Both (A) and (B)

Question: The above mentioned streams are the sub classes of______and______classes.

a) Reader Stream

b) Input Stream

c) Output Stream

d) Both (B) and (C)

Answer: Both (B) and (C)

Question: The file_______is a subclass of Output Stream and is used to write bytes to the file or some output stream.

a) Reader Stream

b) Input Stream

c) Output Stream

d) Both (B) and (Q

Answer: Output Stream

Question: _______method of File Output Stream class closes the file output stream and releases any system resources associated with the stream.

a) Void write (int b)

b) Void close ()

c) Void write (byte [] b)

d) Void read()

Answer: Void close ()

Question: ________method of File Output Stream class writes the specified byte to this file output stream.

a) Void write (int b)

b) Void close ()

c) Void write (byte [] b)

d) Voidread()

Answer: Void write (int b)

Question: ______method of File Output Stream class writes b.length bytes from the specified byte array to this file output stream.

a) Void write(int b)

b) Void close()

c) Void write (byte [] b)

d) Voidread()

Answer: Void write (byte [] b)

Question: The constructors of_______can accept either a string containing the path to the file location or an object of the file class.

a) File Output Stream

b) File lnput Stream

c) File Reader Stream

d) File Constructor

Answer: File Output Stream

Question: The constructor File Output Stream (String name) throws________

a) File Out of Bounds Exception

b) File Not Found Exception

c) File Found Exception

d) None of these

Answer: File Not Found Exception

Question: The constructor File Output Stream (File file) throws_______

a) File Not Found Exception

b) File Out of Bounds Exception

c) File Found Exception

d) None of these

Answer: File Not Found Exception

Question: The following example will create an instance of________FileOutputStreamfosobject = new File Output Stream ("/home/Akash/myflle.txt");

a) File Output Stream

b) File lnput Stream

c) File Reader Stream

d) File Constructor

Answer: File Output Stream

Question: The_______is a subclass of Input Stream and is generally used to read byte data from the files.

a) File lnput Stream

b) File Reader Stream

c) File Writer Stream

d) File Output Stream

Answer: File Output Stream

Question: ______method of File lnput Stream class reads a byte of data from this input stream.

a) Void close( )

b) Int read(byte[] b)

c) Int read( )

d) Void write()

Answer: Int read( )

Question: _______method of File lnput Stream class closes the file input stream and releases any system resources associated with the stream.

a) Void close( )

b) Int read(byte[] b)

c) Int read( )

d) Void write()

Answer: Void close( )

Question: ______method of FilelnputStream class reads up to b.length bytes of data from this input stream into an array of bytes.

a) Void close( )

b) Int read(byte[] b)

c) Int read( )

d) Void write()

Answer: Int read(byte[] b)

Question: A_______can get input from live interaction through keyboard / GUI or it may take input as command line arguments or from the files.

a) Program

b) Code

c) Class

d) Method

Answer: Program

Question: _______class belongs to the java.util package.

a) Printer

b) Console

c) Scanner

d) Keyboard

Answer: Keyboard

Question: It provides various methods to read input from the______or from the file.

a) Printer

b) Console

c) Scanner

d) Keyboard

Answer: Scanner

Question: A special feature of this class is that it breaks the input string into tokens (words) using a______

a) Delimiter

b) Printer

c) Console

d) White space

Answer: Delimiter

Question: _____is the default delimiter.

a) Delimiter

b) Printer

c) Console

d) White space

Answer: White space

Question: Each______can be of different type, for example a string like "India-1947" can also be read as "String-int" values.

a) Symbol

b) Token

c) Word

d) Mark

Answer: Token

Question: Which of the following is not a Scanner related constructor or method ?

a) Scanner (String str)

b) Scanner (Input Stream isobject)

c) Scanner (File fobject)

d) Scanner(Files i)

Answer: Scanner(Files i)

Question: A______object can be created from a string, file object or Input Stream object.

a) Printer

b) Console

c) Scanner

d) Keyboard

Answer: Scanner

Question: The method______of Scanner class closes the Scanner.

a) Void close ()

b) String next()

c) Boolean has Next()

d) int nextlnt()

Answer: Void close ()

Question: The method_____of Scanner class returns the next token.

a) Void close()

b) String next()

c) Boolean hasNext()

d) int nextlnt()

Answer: String next()

Question: The method______of Scanner class returns true if there is a token in input.

a) Void close()

b) String next()

c) Boolean has Next()

d) int nextlnt()

Answer: Boolean has Next()

Question: The method_______of Scanner class scans the next token of the input as Int.

a) Void close 0

b) String next()

c) Boolean has Next()

d) int nextlnt()

Answer: int nextlnt()

Question: The method______of Scanner class scans the next token of the input as Float.

a) Float next Float( )

b) String next()

c) Boolean has Next()

d) int nextlnt()

Answer: Float next Float( )

Question: The method_______of Scanner class scans the next token of the input as Line.

a) Float next Float( )

b) String next()

c) Boolean has Next()

d) String next Line( )

Answer: String next Line( )

Question: _______class can also be used to read from a file.

a) Printer

b) Console

c) Scanner

d) Keyboard

Answer: Scanner

Question: The_______class is especially used when the input is to be types in hidden form (characters must not be echoed on the screen).

a) Printer

b) Console

c) Scanner

d) Keyboard

Answer: Console

Question: The______class provides a method for reading password.

a) Printer

b) Console

c) Scanner

d) Keyboard

Answer: Console

Question: The Console class belongs to______package.

a) Java.io

b) Java.util

c) Java.class

d) Java.console

Answer: Java.io

Question: ________method of Console class is used to write a formatted string to this console's output stream using the specified format string and arguments.

a) String read Line( )

b) Char[ ] read Password()

c) Console printf(String format, Object args)

d) None of these

Answer: Console printf(String format, Object args)

Question: _______method of Console class reads a single line of text from the console.

a) String readLine( )

b) Char[ ] readPassword()

c) Console printf(String format, Object args)

d) None of these

Answer: String readLine( )

Question: _______method of Console class reads a password or passphrase from the console with echoing disabled.

a) String read Line()

b) Char[ ] read Password()

c) Console printf(String format, Object args)

d) None of these

Answer: Char[ ] read Password()

Question: Scanner class is used for performing which of the following operations ?

a) Read from a file

b) Navigate through a file

c) Scan a file

d) All of these

Answer: Read from a file

Question: Which of the following is correct syntax ?

a) Public static void main (String args[ ])

b) Public static void main (String args)

c) Public static void main(String args[ ])

d) Public static void main(String args[ ]);

Answer: Public static void main(String args[ ])

Question: The_______class provides a method for reading password.

a) Printer

b) Console

c) Scanner

d) Keyboard

Answer: Console