Java IOStreams

Which of the following is FALSE about Java Streams ?

• Java defines only two types of streams – Byte stream and character stream.

• Like in any other language, streams are used for input and output operations.

• Byte stream uses InputStream and OutputStream classes for input and output operation.

• Character stream uses InputStream and OutputStream classes for input and output operation.

Which of these classes are used by character streams for input and output operations?

• InputStream

• Writer

• Reader

• InputOutputStream

Which of these class contains the methods print() & println()?

• System

• System.out

• BUfferedOutputStream

• PrintStream

How to represent end of file in java?

• EOF

• -1

• null

• \0

Which is used to converts the byte-oriented stream into character-oriented stream?

• Console

• Scanner

• InputStreamReader

• DataInputStream

Which of these class is used to create an object whose character sequence is mutable?

• String

• StringBuffer

• Both of the mentioned

• None of the mentioned

The PrintStream class provides methods to?

• read data to another stream

• Write data to another stream

• read data to same stream

• write data to same stream

The stream tokenizer class can recognize identifiers, numbers, quoted strings, and various comment styles?

• True

• False

Which of the following is/are False ?

• Breaking a string or stream into meaningful independent words is known as tokenization.

• Java application uses an output stream to read data from a source, it may be a file, an array, peripheral device or socket.

• Both InputStream and OutputStream class is an abstract class. It is the superclass of all classes representing an output stream of bytes.

• The PipedInputStream and PipedOutputStream classes can be used to read and write data simultaneously?

Which of the following is False about Java Streams?

• Stream does not store elements. It simply conveys elements from a source such as a data structure, an array, or an I/O channel, through a pipeline of computational operations.

• he elements of a stream are only visited once during the life of a stream. Like an Iterator, a new stream must be generated to revisit the same elements of the source.

• Stream is functional in nature. Operations performed on a stream does not modify it's source.

• Streams are only used for file operations.