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## java.util.zip
Class CheckedOutputStream

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

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
`out`

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

Method Summary
`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
`close, flush, write`

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

Constructor Detail

### CheckedOutputStream

    public CheckedOutputStream(OutputStream out,
                               Checksum 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

  Writes a byte. Will block until the byte is actually written.

  Overrides:
    `write` in class `FilterOutputStream`
  Parameters:
    `b` - the byte to be written
  Throws:
    `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. Will block until the bytes are actually written.

  Overrides:
    `write` in class `FilterOutputStream`
  Parameters:
    `b` - the data to be written
    `off` - the start offset of the data
    `len` - the number of bytes to be written
  Throws:
    `IOException` - if an I/O error has occurred
  See Also:
    `FilterOutputStream.write(int)`

### getChecksum

    public Checksum getChecksum()

  Returns the Checksum for this output stream.

  Returns:
    the Checksum

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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