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Generate MD5 hash in Java
using Java to get a file's md5 checksum?

Hi boys,

how can i generate a MD5 from a file using java?

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    @Ignacio Vazquez-Abrams: that's a pessimistic use of "possibly" :) Commented Dec 3, 2010 at 14:14

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Here's one way.

public static String md5(String s) { MessageDigest md5; try { md5 = MessageDigest.getInstance("MD5"); md5.update(s.getBytes()); return new BigInteger(1, md5.digest()).toString(16); } catch (NoSuchAlgorithmException e) { throw new IllegalStateException(e); } }
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