Java BufferedInputStream Class
Java BufferedInputStream class is used to read information from stream. It internally uses buffer mechanism to make the performance fast.
The important points about BufferedInputStream are:
- When the bytes from the stream are skipped or read, the internal buffer automatically refilled from the contained input stream, many bytes at a time.
- When a BufferedInputStream is created, an internal buffer array is created.
Java BufferedInputStream class declaration
Let's see the declaration for Java.io.BufferedInputStream class:
Java BufferedInputStream class constructors
||It creates the BufferedInputStream and saves it argument, the input stream IS, for later use.
|BufferedInputStream(InputStream IS, int size)
||It creates the BufferedInputStream with a specified buffer size and saves it argument, the input stream IS, for later use.
Java BufferedInputStream class methods
||It returns an estimate number of bytes that can be read from the input stream without blocking by the next invocation method for the input stream.
||It read the next byte of data from the input stream.
|int read(byte b, int off, int ln)
||It read the bytes from the specified byte-input stream into a specified byte array, starting with the given offset.
||It closes the input stream and releases any of the system resources associated with the stream.
||It repositions the stream at a position the mark method was last called on this input stream.
|void mark(int readlimit)
||It sees the general contract of the mark method for the input stream.
|long skip(long x)
||It skips over and discards x bytes of data from the input stream.
||It tests for the input stream to support the mark and reset methods.
Example of Java BufferedInputStream
Let's see the simple example to read data of file using BufferedInputStream:
Here, we are assuming that you have following data in "testout.txt" file: