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# Class java.util.zip.GZIPInputStream

    java.lang.Object
       |
       +----java.io.InputStream
               |
               +----java.io.FilterInputStream
                       |
                       +----java.util.zip.InflaterInputStream
                               |
                               +----java.util.zip.GZIPInputStream

public class GZIPInputStream
extends InflaterInputStream

This class implements a stream filter for reading compressed data in the GZIP format.

See Also:
  InflaterInputStream

##

crc
  CRC-32 for uncompressed data.
eos
  Indicates end of input stream.
GZIP_MAGIC
  GZIP header magic number.

##

GZIPInputStream(InputStream)
  Creates a new input stream with a default buffer size.
GZIPInputStream(InputStream, int)
  Creates a new input stream with the specified buffer size.

##

close()
  Closes the input stream.
read(byte[], int, int)
  Reads uncompressed data into an array of bytes.

##

crc

     protected CRC32 crc

  CRC-32 for uncompressed data.

eos

     protected boolean eos

  Indicates end of input stream.

GZIP_MAGIC

     public static final int GZIP_MAGIC

  GZIP header magic number.

##

GZIPInputStream

     public GZIPInputStream(InputStream in,
                            int size) throws IOException

  Creates a new input stream with the specified buffer size.

  Parameters:
    in - the input stream
    size - the input buffer size
  Throws: IOException
    if an I/O error has occurred

GZIPInputStream

     public GZIPInputStream(InputStream in) throws IOException

  Creates a new input stream with a default buffer size.

  Parameters:
    in - the input stream
  Throws: IOException
    if an I/O error has occurred

##

read

     public int read(byte buf[],
                     int off,
                     int len) throws IOException

  Reads uncompressed data into an array of bytes. Blocks until enough input is available for decompression.

  Parameters:
    buf - the buffer into which the data is read
    off - the start offset of the data
    len - the maximum number of bytes read
  Returns:
    the actual number of bytes read, or -1 if the end of the compressed input stream is reached
  Throws: IOException
    if an I/O error has occurred or the compressed input data is corrupt
  Overrides:
    read in class InflaterInputStream

close

     public void close() throws IOException

  Closes the input stream.

  Throws: IOException
    if an I/O error has occurred
  Overrides:
    close in class FilterInputStream

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