Get Hex from byte array : Byte Array « File Input Output « Java

Get Hex from byte array

Get Hex from byte array
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//  Copyright (C) 2010 Sidney Leal (
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//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 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
//  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, see <>.

public class FileUtil {
  static final String HEXES = "0123456789ABCDEF";

  public static String getHex(byte[] raw) {
    if (raw == null) {
      return null;
    final StringBuilder hex = new StringBuilder(2 * raw.length);
    for (final byte b : raw) {
      hex.append(HEXES.charAt((b & 0xF0) >> 4)).append(
          HEXES.charAt((b & 0x0F)));
    return hex.toString();



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