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## java.util.zip
Class ZipOutputStream

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

All Implemented Interfaces:
  java.util.zip.ZipConstants

Direct Known Subclasses:
  JarOutputStream

public class ZipOutputStream
extends DeflaterOutputStream
implements java.util.zip.ZipConstants

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
`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
`ZipOutputStream(OutputStream out)` Creates a new ZIP output stream.

Method Summary
`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, write`

Methods inherited from class java.io.FilterOutputStream
`flush, 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.

### DEFLATED

    public static final int DEFLATED

  Compression method for compressed (DEFLATED) entries.

### LOCSIG

    public static final long LOCSIG

### EXTSIG

    public static final long EXTSIG

### CENSIG

    public static final long CENSIG

### ENDSIG

    public static final long ENDSIG

### LOCHDR

    public static final int LOCHDR

### EXTHDR

    public static final int EXTHDR

### CENHDR

    public static final int CENHDR

### ENDHDR

    public static final int ENDHDR

### LOCVER

    public static final int LOCVER

### LOCFLG

    public static final int LOCFLG

### LOCHOW

    public static final int LOCHOW

### LOCTIM

    public static final int LOCTIM

### LOCCRC

    public static final int LOCCRC

### LOCSIZ

    public static final int LOCSIZ

### LOCLEN

    public static final int LOCLEN

### LOCNAM

    public static final int LOCNAM

### LOCEXT

    public static final int LOCEXT

### EXTCRC

    public static final int EXTCRC

### EXTSIZ

    public static final int EXTSIZ

### EXTLEN

    public static final int EXTLEN

### CENVEM

    public static final int CENVEM

### CENVER

    public static final int CENVER

### CENFLG

    public static final int CENFLG

### CENHOW

    public static final int CENHOW

### CENTIM

    public static final int CENTIM

### CENCRC

    public static final int CENCRC

### CENSIZ

    public static final int CENSIZ

### CENLEN

    public static final int CENLEN

### CENNAM

    public static final int CENNAM

### CENEXT

    public static final int CENEXT

### CENCOM

    public static final int CENCOM

### CENDSK

    public static final int CENDSK

### CENATT

    public static final int CENATT

### CENATX

    public static final int CENATX

### CENOFF

    public static final int CENOFF

### ENDSUB

    public static final int ENDSUB

### ENDTOT

    public static final int ENDTOT

### ENDSIZ

    public static final int ENDSIZ

### ENDOFF

    public static final int ENDOFF

### ENDCOM

    public static final int ENDCOM

Constructor Detail

### ZipOutputStream

    public ZipOutputStream(OutputStream out)

  Creates a new ZIP output stream.
  Parameters:
    `out` - the actual output stream

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

### 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.
  Overrides:
    `close` in class `DeflaterOutputStream`
  Throws:
    `ZipException` - if a ZIP file error has occurred
    `IOException` - if an I/O error has occurred

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