java.util.zip - DeflaterInputStream Class


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Introduction

The java.util.zip.DeflaterInputStream class implements an input stream filter for compressing data in the "deflate" compression format.

Class declaration

Following is the declaration for java.util.zip.DeflaterInputStream class −

public class DeflaterInputStream
   extends FilterInputStream

Fields

Following are the fields for java.util.zip.DeflaterInputStream class −

  • protected byte[] buf − Input buffer for reading compressed data.

  • protected Deflater def − Compressor for this stream.

Constructors

Sr.No. Constructor & Description
1

DeflaterInputStream(InputStream in)

Creates a new input stream with a default compressor and buffer size.

2

DeflaterInputStream(InputStream in, Deflater defl)

Creates a new input stream with the specified compressor and a default buffer size.

3

DeflaterInputStream(InputStream in, Deflater defl, int bufLen)

Creates a new input stream with the specified compressor and buffer size.

Class methods

Sr.No. Method & Description
1 int available()

Returns 0 after EOF has been reached, otherwise always return 1.

2 void close()

Closes this input stream and its underlying input stream, discarding any pending uncompressed data.

3 int read()

Reads a single byte of compressed data from the input stream.

4 int read(byte[] b, int off, int len)

Reads compressed data into a byte array.

5 long skip(long n)

Skips over and discards data from the input stream.

Methods inherited

This class inherits methods from the following classes −

  • java.io.FilterInputStream
  • java.lang.Object


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