CheckedOutputStream (Java Platform SE 8 ) (original) (raw)

• java.lang.Object

• • java.io.OutputStream
  • • java.io.FilterOutputStream
      • • java.util.zip.CheckedOutputStream

• All Implemented Interfaces:
  Closeable, Flushable, AutoCloseable

public class CheckedOutputStream
extends FilterOutputStream
An output stream that also maintains a checksum of the data being written. The checksum can then be used to verify the integrity of the output data.
See Also:
Checksum

• • Field Summary

     * ### Fields inherited from class java.io.[FilterOutputStream](../../../java/io/FilterOutputStream.html "class in java.io")  
     `[out](../../../java/io/FilterOutputStream.html#out)`  

  • Constructor Summary

  Constructors

  Constructor	Description
  CheckedOutputStream(OutputStream out,Checksum cksum)	Creates an output stream with the specified Checksum.

  • Method Summary

  All Methods Instance Methods Concrete Methods

  Modifier and Type	Method	Description
  Checksum	getChecksum()	Returns the Checksum for this output stream.
  void	write(byte[] b, int off, int len)	Writes an array of bytes.
  void	write(int b)	Writes a byte.

     * ### Methods inherited from class java.io.[FilterOutputStream](../../../java/io/FilterOutputStream.html "class in java.io")  
     `[close](../../../java/io/FilterOutputStream.html#close--), [flush](../../../java/io/FilterOutputStream.html#flush--), [write](../../../java/io/FilterOutputStream.html#write-byte:A-)`  
     * ### Methods inherited from class java.lang.[Object](../../../java/lang/Object.html "class in java.lang")  
     `[clone](../../../java/lang/Object.html#clone--), [equals](../../../java/lang/Object.html#equals-java.lang.Object-), [finalize](../../../java/lang/Object.html#finalize--), [getClass](../../../java/lang/Object.html#getClass--), [hashCode](../../../java/lang/Object.html#hashCode--), [notify](../../../java/lang/Object.html#notify--), [notifyAll](../../../java/lang/Object.html#notifyAll--), [toString](../../../java/lang/Object.html#toString--), [wait](../../../java/lang/Object.html#wait--), [wait](../../../java/lang/Object.html#wait-long-), [wait](../../../java/lang/Object.html#wait-long-int-)`

• • Constructor Detail

     * #### CheckedOutputStream  
     public CheckedOutputStream([OutputStream](../../../java/io/OutputStream.html "class in java.io") out,  
                                [Checksum](../../../java/util/zip/Checksum.html "interface in java.util.zip") cksum)  
     Creates an output stream with the specified Checksum.  
     Parameters:  
     `out` \- the output stream  
     `cksum` \- the checksum  

  • Method Detail

    * #### write  
    public void write(int b)  
               throws [IOException](../../../java/io/IOException.html "class in java.io")  
    Writes a byte. Will block until the byte is actually written.  
    Overrides:  
    `[write](../../../java/io/FilterOutputStream.html#write-int-)` in class `[FilterOutputStream](../../../java/io/FilterOutputStream.html "class in java.io")`  
    Parameters:  
    `b` \- the byte to be written  
    Throws:  
    `[IOException](../../../java/io/IOException.html "class in java.io")` \- if an I/O error has occurred  
    * #### write  
    public void write(byte[] b,  
                      int off,  
                      int len)  
               throws [IOException](../../../java/io/IOException.html "class in java.io")  
    Writes an array of bytes. Will block until the bytes are actually written.  
    Overrides:  
    `[write](../../../java/io/FilterOutputStream.html#write-byte:A-int-int-)` in class `[FilterOutputStream](../../../java/io/FilterOutputStream.html "class in java.io")`  
    Parameters:  
    `b` \- the data to be written  
    `off` \- the start offset of the data  
    `len` \- the number of bytes to be written  
    Throws:  
    `[IOException](../../../java/io/IOException.html "class in java.io")` \- if an I/O error has occurred  
    See Also:  
    [FilterOutputStream.write(int)](../../../java/io/FilterOutputStream.html#write-int-)  
    * #### getChecksum  
    public [Checksum](../../../java/util/zip/Checksum.html "interface in java.util.zip") getChecksum()  
    Returns the Checksum for this output stream.  
    Returns:  
    the Checksum

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