Java Hex Calculate toHex(byte[] bytes)

Description

to Hex

License

Open Source License

Declaration

public static String toHex(byte[] bytes) 

Method Source Code

//package com.java2s;
/**//from   w  w  w.j a  v  a 2s.com
 * Copyright 2009 Red Hat, Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

public class Main {
    public static String toHex(byte[] bytes) {
        return toHex(bytes, 0, bytes.length);
    }

    public static String toHex(byte[] bytes, int offset, int length) {
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < length; i++) {
            byte b = bytes[offset + i];
            String s = Integer.toHexString(0xff & b);
            if (s.length() == 1)
                sb.append("0");
            sb.append(s);
        }
        return sb.toString();
    }
}

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