BufferedInputStream in Java
File Input/Output operations consume a lot of important resources and are time consuming. Hence, reading a chunk of bytes out of a file and storing it in a local buffer for later processing is faster and than reading a byte at a time, out of a file. Such buffering is used to speed up the I/O process.
BufferedInputStream class is used to create such buffered input stream through which a chunk of bytes are read out of a file for later processing.
Constructors of BufferedInputStream class
BufferedInputStream(InputStream is) -This constructor creates a BufferedInputStream object to read the data out of a file, which accessed by an InputStream, passed to this constructor as a parameter.
File file= new File("D:/Textbook.txt");
FileInputStream fis= new FileInputStream(file);
BufferedInputStream fis= new BufferedInputStream(fis);
Methods for reading BufferedInputStream class
Some methods that we generally use while working with BufferedInputStream are shown in the table below :
|Methods ||Description |
|available() ||This method gives the remaining number of bytes available to read from this input stream. |
|read() ||This method reads one byte at a time from this input stream. |
|read(byte) || This method reads a whole byte array at a time from this input stream. |
|close() ||This method closes this input stream and also frees any resources connected with this input stream. |
What next ?
Java IO Tutorial Introduction