java.lang.Object
- java.io.InputStream
- - java.io.FilterInputStream
  - - java.util.zip.InflaterInputStream
    - - java.util.zip.ZipInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

Direct Known Subclasses:

JarInputStream
```
public class ZipInputStream
extends InflaterInputStream
```
This class implements an input stream filter for reading 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`	`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`

ZipInputStream (Java Platform SE 7 ) Home of API Java Contents Haut

Fields inherited from class java.util.zip.InflaterInputStream buf, inf, len

Fields inherited from class java.io.FilterInputStream in

Constructor Summary

Constructors
Constructor and Description
`ZipInputStream(InputStream in)` Creates a new ZIP input stream.
`ZipInputStream(InputStream in, Charset charset)` Creates a new ZIP input stream.

ZipInputStream (Java Platform SE 7 ) Home of API Java Contents Haut

Method Summary

Methods
Modifier and Type	Method and Description
`int`	`available()` Returns 0 after EOF has reached for the current entry data, otherwise always return 1.
`void`	`close()` Closes this input stream and releases any system resources associated with the stream.
`void`	`closeEntry()` Closes the current ZIP entry and positions the stream for reading the next entry.
`protected ZipEntry`	`createZipEntry(String name)` Creates a new `ZipEntry` object for the specified entry name.
`ZipEntry`	`getNextEntry()` Reads the next ZIP file entry and positions the stream at the beginning of the entry data.
`int`	`read(byte[] b, int off, int len)` Reads from the current ZIP entry into an array of bytes.
`long`	`skip(long n)` Skips specified number of bytes in the current ZIP entry.

ZipInputStream (Java Platform SE 7 ) Home of API Java Contents Haut

Methods inherited from class java.util.zip.InflaterInputStream fill, mark, markSupported, read, reset

Methods inherited from class java.io.FilterInputStream read

Methods inherited from class java.lang.Object clone, equals, finalize, 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
  - ZipInputStream
    public ZipInputStream(InputStream in)
    
    Creates a new ZIP input stream.
    The UTF-8 charset is used to decode the entry names.
    
    Parameters:
    in - the actual input stream
  - ZipInputStream
    public ZipInputStream(InputStream in, Charset charset)
    
    Creates a new ZIP input stream.
    
    Parameters:
    in - the actual input stream
    charset - The charset to be used to decode the ZIP entry name (ignored if the language encoding bit of the ZIP entry's general purpose bit flag is set).
    Since:
    
    1.7
- Method Detail
  - getNextEntry
    public ZipEntry getNextEntry() throws IOException
    
    Reads the next ZIP file entry and positions the stream at the beginning of the entry data.
    
    Returns:
    the next ZIP file entry, or null if there are no more entries
    
    Throws:
    
    ZipException - if a ZIP file 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 reading the next entry.
    
    Throws:
    
    ZipException - if a ZIP file error has occurred
    
    IOException - if an I/O error has occurred
  - available
    public int available() throws IOException
    
    Returns 0 after EOF has reached for the current entry data, otherwise always return 1.
    Programs should not count on this method to return the actual number of bytes that could be read without blocking.
    
    Overrides:
    
    available in class InflaterInputStream
    
    Returns:
    1 before EOF and 0 after EOF has reached for current entry.
    
    Throws:
    
    IOException - if an I/O error occurs.
  - read
    public int read(byte[] b, int off, int len) throws IOException
    
    Reads from the current ZIP entry into an array of bytes. If len is not zero, the method blocks until some input is available; otherwise, no bytes are read and 0 is returned.
    
    Overrides:
    
    read in class InflaterInputStream
    
    Parameters:
    b - the buffer into which the data is read
    off - the start offset in the destination array b
    len - the maximum number of bytes read
    
    Returns:
    the actual number of bytes read, or -1 if the end of the entry is reached
    
    Throws:
    
    NullPointerException - if b is null.
    
    IndexOutOfBoundsException - if off is negative, len is negative, or len is greater than b.length - off
    
    ZipException - if a ZIP file error has occurred
    
    IOException - if an I/O error has occurred
    See Also:
    FilterInputStream.in
  - skip
    public long skip(long n) throws IOException
    
    Skips specified number of bytes in the current ZIP entry.
    
    Overrides:
    
    skip in class InflaterInputStream
    
    Parameters:
    n - the number of bytes to skip
    
    Returns:
    the actual number of bytes skipped
    
    Throws:
    
    ZipException - if a ZIP file error has occurred
    
    IOException - if an I/O error has occurred
    
    IllegalArgumentException - if n < 0
  - close
    public void close() throws IOException
    
    Closes this input stream and releases any system resources associated with the stream.
    
    Specified by:
    
    close in interface Closeable
    
    Specified by:
    
    close in interface AutoCloseable
    
    Overrides:
    
    close in class InflaterInputStream
    
    Throws:
    
    IOException - if an I/O error has occurred
    See Also:
    FilterInputStream.in
  - createZipEntry
    protected ZipEntry createZipEntry(String name)
    
    Creates a new ZipEntry object for the specified entry name.
    
    Parameters:
    name - the ZIP file entry name
    
    Returns:
    the ZipEntry just created

Document created the 11/06/2005, last modified the 04/03/2020
Source of the printed document:https://www.gaudry.be/en/java-api-rf-java/util/zip/zipinputstream.html

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References

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Contents Haut

Class ZipInputStream

References