JarOutputStream

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## java.util.jar
Class JarOutputStream

    java.lang.Object
      java.io.OutputStream
          java.io.FilterOutputStream
              java.util.zip.DeflaterOutputStream
                  java.util.zip.ZipOutputStream
                      java.util.jar.JarOutputStream

    public class JarOutputStream

extends ZipOutputStream

The `JarOutputStream` class is used to write the contents of a JAR file to any output stream. It extends the class `java.util.zip.ZipOutputStream` with support for writing an optional `Manifest` entry. The `Manifest` can be used to specify meta-information about the JAR file and its entries.

Since:
  1.2
Version:
  1.19, 02/02/00
Author:
  David Connelly
See Also:
  `Manifest`, `ZipOutputStream`

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` | `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`

Fields inherited from class java.util.zip.ZipOutputStream
`DEFLATED, STORED`

Constructor Summary
`JarOutputStream(OutputStream out)` Creates a new `JarOutputStream` with no manifest.
`JarOutputStream(OutputStream out, Manifest man)` Creates a new `JarOutputStream` with the specified `Manifest`.

Method Summary
`void` | `putNextEntry(ZipEntry ze)` Begins writing a new JAR file entry and positions the stream to the start of the entry data.

Methods inherited from class java.util.zip.ZipOutputStream
`close, closeEntry, finish, setComment, setLevel, setMethod, write`

Methods inherited from class java.util.zip.DeflaterOutputStream
`write`

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

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

Field Detail

### 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

### JarOutputStream

    public JarOutputStream(OutputStream out,
                           Manifest man)
                    throws IOException

  Creates a new `JarOutputStream` with the specified `Manifest`. The manifest is written as the first entry to the output stream.

  Parameters:
    `out` - the actual output stream
    `man` - the optional `Manifest`
  Throws:
    `IOException` - if an I/O error has occurred

### JarOutputStream

    public JarOutputStream(OutputStream out)
                    throws IOException

  Creates a new `JarOutputStream` with no manifest.

  Parameters:
    `out` - the actual output stream
  Throws:
    `IOException` - if an I/O error has occurred

Method Detail

### putNextEntry

    public void putNextEntry(ZipEntry ze)
                      throws IOException

  Begins writing a new JAR file entry and positions the stream to the start of the entry data. This method will also close any previous entry. The default compression method will be used if no compression method was specified for the entry. The current time will be used if the entry has no set modification time.

  Overrides:
    `putNextEntry` in class `ZipOutputStream`
  Parameters:
    `ze` - the ZIP/JAR entry to be written
  Throws:
    `ZipException` - if a ZIP error has occurred
    `IOException` - if an I/O error has occurred

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