GZIPOutputStream 

Introduction

The java.util.zip.GZIPOutputStream class implements a stream filter for writing compressed data in the GZIP file format.

Class Declaration

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

publicclassGZIPOutputStreamextendsDeflaterOutputStream

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Fields

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

• Protected CRC32 crc − CRC-32 for uncompressed data.

Constructors

Sr.No.	Constructor & Description
1	GZIPOutputStream(OutputStream out)Creates a new output stream with a default buffer size.
2	GZIPOutputStream(OutputStream out, boolean syncFlush)Creates a new output stream with a default buffer size and the specified flush mode.
3	GZIPOutputStream(OutputStream out, int size)Creates a new output stream with the specified buffer size.
4	GZIPOutputStream(OutputStream out, int size, boolean syncFlush)Creates a new output stream with the specified buffer size and flush mode.

Class Methods

Sr.No.	Method & Description
1	void finish()Finishes writing compressed data to the output stream without closing the underlying stream.
2	int write(byte[] buf, int off, int len)Writes array of bytes to the compressed output stream.

Methods Inherited

This class inherits methods from the following classes −

• java.util.zip.DeflaterOutputStream
• java.io.FilterOutputStream
• java.lang.Object