using Java to get a file's md5 checksum? - Stack Overflow
- java.security.DigestInputStream
- MessageDigest md = MessageDigest.getInstance("MD5");
InputStream is = new FileInputStream("file.txt");
try {
is = new DigestInputStream(is, md);
// read stream to EOF as normal...
}
finally {
is.close();
}
byte[] digest = md.digest();
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