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<TITLE>Calculating the Checksum of a Byte Array
(Java Developers Almanac Example)
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<h3>
e456.
Calculating the Checksum of a Byte Array</h3>
<pre>
byte[] bytes = <font color="#0066ff"><i>"some data"</i></font>.getBytes();
// Compute Adler-32 checksum
Checksum checksumEngine = new Adler32();
checksumEngine.update(bytes, 0, bytes.length);
long checksum = checksumEngine.getValue();
// Compute CRC-32 checksum
checksumEngine = new CRC32();
checksumEngine.update(bytes, 0, bytes.length);
checksum = checksumEngine.getValue();
// The checksum engine can be reused again for a different byte array by calling reset()
checksumEngine.reset();
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Related Examples
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e457. <a class="eglink" href="ChecksumFile.html?l=rel">
Calculating the Checksum of a File
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See also:
<a class="eglink" href="/egs/java.util.zip/pkg.html?l=rel#GZIP">
GZIP
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<a class="eglink" href="/egs/java.util.zip/pkg.html?l=rel#ZIP">
ZIP
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