13.2 Byte Stream
ByteStream classes are to provide an surrounding to handle byte-oriented data or I/O.
ByteStream classes are having 2 abstract class InputStream & OutputStream.
These two abstract classes have several concrete classes that handle various devices such as disk files, network connection etc.
InputStream
– It is an abstract class in which defines an interface known as Closable interface.
– Methods in this class will throw an IOException.
OutputStream
– It is an abstract class in which defines an interface known as Closable & Flushable interface.
– Methods in this class returns void and throws IOException.
methods by InputStream abstract class
int read()
it returns integer of next available input of bye
int read(byte buffer[ ])
it read up to the length of byte in buffer
int read(byte buffer[ ], int offset, int numBytes)
it read up to the length of byte in buffer starting form offset
int available()
It gets the no.of bytes of input available.
void reset()
it reads the input pointer.
long skip(long numBytes)
it returns the bytes ignored.
void close()
close the source of input.
methods by OutputStream abstract class
void write(int b)
it writes a single byte in output.
void write(byte buffer[ ])
it write a full array of bytes to an output stream
void write(byte buffer[ ], int offset, int numBytes)
it writes a range of numBytes from array buffer starting at buffer offset.
void close()
close the source of output
void flush()
it marks a point to input stream that will stay valid until numBytes are read.
Download for more knowledge
https://play.google.com/store/apps/details?id=ab.java.programming
QCOM 