ZipOutputStream (Java Platform SE 8 )

java.lang.Object
- java.io.OutputStream
- - java.io.FilterOutputStream
  - - java.util.zip.DeflaterOutputStream
    - - java.util.zip.ZipOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

Direct Known Subclasses:

JarOutputStream
```
public class ZipOutputStream
extends DeflaterOutputStream
```
This class implements an output stream filter for writing files in the ZIP file format. Includes support for both compressed and uncompressed entries.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`CENATT`
`static int`	`CENATX`
`static int`	`CENCOM`
`static int`	`CENCRC`
`static int`	`CENDSK`
`static int`	`CENEXT`
`static int`	`CENFLG`
`static int`	`CENHDR`
`static int`	`CENHOW`
`static int`	`CENLEN`
`static int`	`CENNAM`
`static int`	`CENOFF`
`static long`	`CENSIG`
`static int`	`CENSIZ`
`static int`	`CENTIM`
`static int`	`CENVEM`
`static int`	`CENVER`
`static int`	`DEFLATED` Compression method for compressed (DEFLATED) entries.
`static int`	`ENDCOM`
`static int`	`ENDHDR`
`static int`	`ENDOFF`
`static long`	`ENDSIG`
`static int`	`ENDSIZ`
`static int`	`ENDSUB`
`static int`	`ENDTOT`
`static int`	`EXTCRC`
`static int`	`EXTHDR`
`static int`	`EXTLEN`
`static long`	`EXTSIG`
`static int`	`EXTSIZ`
`static int`	`LOCCRC`
`static int`	`LOCEXT`
`static int`	`LOCFLG`
`static int`	`LOCHDR`
`static int`	`LOCHOW`
`static int`	`LOCLEN`
`static int`	`LOCNAM`
`static long`	`LOCSIG`
`static int`	`LOCSIZ`
`static int`	`LOCTIM`
`static int`	`LOCVER`
`static int`	`STORED` Compression method for uncompressed (STORED) entries.

Fields inherited from class java.util.zip.DeflaterOutputStream
buf, def

Fields inherited from class java.io.FilterOutputStream
out

Constructor Summary

Constructors
Constructor and Description
`ZipOutputStream(OutputStream out)` Creates a new ZIP output stream.
`ZipOutputStream(OutputStream out, Charset charset)` Creates a new ZIP output stream.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`close()` Closes the ZIP output stream as well as the stream being filtered.
`void`	`closeEntry()` Closes the current ZIP entry and positions the stream for writing the next entry.
`void`	`finish()` Finishes writing the contents of the ZIP output stream without closing the underlying stream.
`void`	`putNextEntry(ZipEntry e)` Begins writing a new ZIP file entry and positions the stream to the start of the entry data.
`void`	`setComment(String comment)` Sets the ZIP file comment.
`void`	`setLevel(int level)` Sets the compression level for subsequent entries which are DEFLATED.
`void`	`setMethod(int method)` Sets the default compression method for subsequent entries.
`void`	`write(byte[] b, int off, int len)` Writes an array of bytes to the current ZIP entry data.

Methods inherited from class java.util.zip.DeflaterOutputStream
deflate, flush, write

Methods inherited from class java.io.FilterOutputStream
write

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - STORED
```
public static final int STORED
```
    Compression method for uncompressed (STORED) entries.
    
    See Also:
    
    Constant Field Values
  - DEFLATED
```
public static final int DEFLATED
```
    Compression method for compressed (DEFLATED) entries.
    
    See Also:
    
    Constant Field Values
  - LOCSIG
```
public static final long LOCSIG
```
    See Also:
    
    Constant Field Values
  - EXTSIG
```
public static final long EXTSIG
```
    See Also:
    
    Constant Field Values
  - CENSIG
```
public static final long CENSIG
```
    See Also:
    
    Constant Field Values
  - ENDSIG
```
public static final long ENDSIG
```
    See Also:
    
    Constant Field Values
  - LOCHDR
```
public static final int LOCHDR
```
    See Also:
    
    Constant Field Values
  - EXTHDR
```
public static final int EXTHDR
```
    See Also:
    
    Constant Field Values
  - CENHDR
```
public static final int CENHDR
```
    See Also:
    
    Constant Field Values
  - ENDHDR
```
public static final int ENDHDR
```
    See Also:
    
    Constant Field Values
  - LOCVER
```
public static final int LOCVER
```
    See Also:
    
    Constant Field Values
  - LOCFLG
```
public static final int LOCFLG
```
    See Also:
    
    Constant Field Values
  - LOCHOW
```
public static final int LOCHOW
```
    See Also:
    
    Constant Field Values
  - LOCTIM
```
public static final int LOCTIM
```
    See Also:
    
    Constant Field Values
  - LOCCRC
```
public static final int LOCCRC
```
    See Also:
    
    Constant Field Values
  - LOCSIZ
```
public static final int LOCSIZ
```
    See Also:
    
    Constant Field Values
  - LOCLEN
```
public static final int LOCLEN
```
    See Also:
    
    Constant Field Values
  - LOCNAM
```
public static final int LOCNAM
```
    See Also:
    
    Constant Field Values
  - LOCEXT
```
public static final int LOCEXT
```
    See Also:
    
    Constant Field Values
  - EXTCRC
```
public static final int EXTCRC
```
    See Also:
    
    Constant Field Values
  - EXTSIZ
```
public static final int EXTSIZ
```
    See Also:
    
    Constant Field Values
  - EXTLEN
```
public static final int EXTLEN
```
    See Also:
    
    Constant Field Values
  - CENVEM
```
public static final int CENVEM
```
    See Also:
    
    Constant Field Values
  - CENVER
```
public static final int CENVER
```
    See Also:
    
    Constant Field Values
  - CENFLG
```
public static final int CENFLG
```
    See Also:
    
    Constant Field Values
  - CENHOW
```
public static final int CENHOW
```
    See Also:
    
    Constant Field Values
  - CENTIM
```
public static final int CENTIM
```
    See Also:
    
    Constant Field Values
  - CENCRC
```
public static final int CENCRC
```
    See Also:
    
    Constant Field Values
  - CENSIZ
```
public static final int CENSIZ
```
    See Also:
    
    Constant Field Values
  - CENLEN
```
public static final int CENLEN
```
    See Also:
    
    Constant Field Values
  - CENNAM
```
public static final int CENNAM
```
    See Also:
    
    Constant Field Values
  - CENEXT
```
public static final int CENEXT
```
    See Also:
    
    Constant Field Values
  - CENCOM
```
public static final int CENCOM
```
    See Also:
    
    Constant Field Values
  - CENDSK
```
public static final int CENDSK
```
    See Also:
    
    Constant Field Values
  - CENATT
```
public static final int CENATT
```
    See Also:
    
    Constant Field Values
  - CENATX
```
public static final int CENATX
```
    See Also:
    
    Constant Field Values
  - CENOFF
```
public static final int CENOFF
```
    See Also:
    
    Constant Field Values
  - ENDSUB
```
public static final int ENDSUB
```
    See Also:
    
    Constant Field Values
  - ENDTOT
```
public static final int ENDTOT
```
    See Also:
    
    Constant Field Values
  - ENDSIZ
```
public static final int ENDSIZ
```
    See Also:
    
    Constant Field Values
  - ENDOFF
```
public static final int ENDOFF
```
    See Also:
    
    Constant Field Values
  - ENDCOM
```
public static final int ENDCOM
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - ZipOutputStream
```
public ZipOutputStream(OutputStream out)
```
    Creates a new ZIP output stream.
    The UTF-8 charset is used to encode the entry names and comments.
    
    Parameters:
    
    out - the actual output stream
  - ZipOutputStream
```
public ZipOutputStream(OutputStream out,
                       Charset charset)
```
    Creates a new ZIP output stream.
    
    Parameters:
    
    out - the actual output stream
    
    charset - the charset to be used to encode the entry names and comments
    
    Since:
    
    1.7
- Method Detail
  - setComment
```
public void setComment(String comment)
```
    Sets the ZIP file comment.
    
    Parameters:
    
    comment - the comment string
    
    Throws:
    
    IllegalArgumentException - if the length of the specified ZIP file comment is greater than 0xFFFF bytes
  - setMethod
```
public void setMethod(int method)
```
    Sets the default compression method for subsequent entries. This default will be used whenever the compression method is not specified for an individual ZIP file entry, and is initially set to DEFLATED.
    
    Parameters:
    
    method - the default compression method
    
    Throws:
    
    IllegalArgumentException - if the specified compression method is invalid
  - setLevel
```
public void setLevel(int level)
```
    Sets the compression level for subsequent entries which are DEFLATED. The default setting is DEFAULT_COMPRESSION.
    
    Parameters:
    
    level - the compression level (0-9)
    
    Throws:
    
    IllegalArgumentException - if the compression level is invalid
  - putNextEntry
```
public void putNextEntry(ZipEntry e)
                  throws IOException
```
    Begins writing a new ZIP file entry and positions the stream to the start of the entry data. Closes the current entry if still active. The default compression method will be used if no compression method was specified for the entry, and the current time will be used if the entry has no set modification time.
    
    Parameters:
    
    e - the ZIP entry to be written
    
    Throws:
    
    ZipException - if a ZIP format error has occurred
    
    IOException - if an I/O error has occurred
  - closeEntry
```
public void closeEntry()
                throws IOException
```
    Closes the current ZIP entry and positions the stream for writing the next entry.
    
    Throws:
    
    ZipException - if a ZIP format error has occurred
    
    IOException - if an I/O error has occurred
  - write
```
public void write(byte[] b,
                  int off,
                  int len)
           throws IOException
```
    Writes an array of bytes to the current ZIP entry data. This method will block until all the bytes are written.
    
    Overrides:
    
    write in class DeflaterOutputStream
    
    Parameters:
    
    b - the data to be written
    
    off - the start offset in the data
    
    len - the number of bytes that are written
    
    Throws:
    
    ZipException - if a ZIP file error has occurred
    
    IOException - if an I/O error has occurred
    
    See Also:
    
    FilterOutputStream.write(int)
  - finish
```
public void finish()
            throws IOException
```
    Finishes writing the contents of the ZIP output stream without closing the underlying stream. Use this method when applying multiple filters in succession to the same output stream.
    
    Overrides:
    
    finish in class DeflaterOutputStream
    
    Throws:
    
    ZipException - if a ZIP file error has occurred
    
    IOException - if an I/O exception has occurred
  - close
```
public void close()
           throws IOException
```
    Closes the ZIP output stream as well as the stream being filtered.
    
    Specified by:
    
    close in interface Closeable
    
    Specified by:
    
    close in interface AutoCloseable
    
    Overrides:
    
    close in class DeflaterOutputStream
    
    Throws:
    
    ZipException - if a ZIP file error has occurred
    
    IOException - if an I/O error has occurred
    
    See Also:
    
    FilterOutputStream.flush(), FilterOutputStream.out

Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2018, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.

Class ZipOutputStream

Field Summary

Fields inherited from class java.util.zip.DeflaterOutputStream

Fields inherited from class java.io.FilterOutputStream

Constructor Summary

Method Summary

Methods inherited from class java.util.zip.DeflaterOutputStream

Methods inherited from class java.io.FilterOutputStream

Methods inherited from class java.lang.Object

Field Detail

STORED

DEFLATED

LOCSIG

EXTSIG

CENSIG

ENDSIG

LOCHDR

EXTHDR

CENHDR

ENDHDR

LOCVER

LOCFLG

LOCHOW

LOCTIM

LOCCRC

LOCSIZ

LOCLEN

LOCNAM

LOCEXT

EXTCRC

EXTSIZ

EXTLEN

CENVEM

CENVER

CENFLG

CENHOW

CENTIM

CENCRC

CENSIZ

CENLEN

CENNAM

CENEXT

CENCOM

CENDSK

CENATT

CENATX

CENOFF

ENDSUB

ENDTOT

ENDSIZ

ENDOFF

ENDCOM

Constructor Detail

ZipOutputStream

ZipOutputStream

Method Detail

setComment

setMethod

setLevel

putNextEntry

closeEntry

write

finish

close