gistfile1.java

public static String md5( String clearText ) {
	MessageDigest md;
	byte[] cipher;
	StringBuilder hexString;

	try {
		md = java.security.MessageDigest.getInstance("MD5");
		cipher = md.digest( clearText.getBytes( "UTF-8" ) );
		hexString = new StringBuilder();

		for( int i = 0; i < cipher.length; ++i ) {
			hexString.append( Integer.toHexString((cipher[i] & 0xFF) | 0x100).substring(1,3) );
		}

		return hexString.toString();

	} catch( NoSuchAlgorithmException e ) {
		e.printStackTrace();

	} catch( UnsupportedEncodingException e ) {
		e.printStackTrace();
	}

	return null;
}