Java I/O

Chapter 3. Input Streams

The InputStream Class

The java.io.InputStream class is the abstract superclass for all input streams. It declares the three basic methods needed to read bytes of data from a stream. It also has methods for closing and flushing streams, checking how many bytes of data are available to be read, skipping over input, marking a position in a stream and resetting back to that position, and determining whether marking and resetting are supported.

public abstract int read() throws IOException
public int read(byte[] data) throws IOException
public int read(byte[] data, int offset, int length) throws IOException
public long skip(long n) throws IOException
public int available() throws IOException
public void close() throws IOException
public synchronized void mark(int readlimit)
public synchronized void reset() throws IOException
public boolean markSupported()