Java Hex Calculate toHexString(byte[] b)

Description

Returns the hexadecimal representation of the byte array (uppercase).

License

Apache License

Parameter

Parameter	Description
b	a parameter

Declaration

static public String toHexString(byte[] b) 

Method Source Code

//package com.java2s;
/*//from  ww  w . ja  v a  2 s. co  m
 * Copyright (c) 2007-2009. Members of the EGEE Collaboration.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 * $Id: Utils.java,v 1.5 2009/01/15 12:19:22 vtschopp Exp $
 */

public class Main {
    /** HEX char table */
    private static final char[] HEX = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E',
            'F' };

    /**
     * Returns the hexadecimal representation of the byte array (uppercase).
     * 
     * @param b
     * @return
     */
    static public String toHexString(byte[] b) {
        if (b == null) {
            return null;
        }
        char[] buf = new char[b.length * 2];
        int j, k;

        j = 0;
        for (int i = 0; i < b.length; i++) {
            k = b[i];
            buf[j++] = HEX[(k >>> 4) & 0x0F];
            buf[j++] = HEX[k & 0x0F];
        }
        return new String(buf);
    }
}

Related

1. toHexString(byte[] b)
2. toHexString(byte[] b)
3. toHexString(byte[] b)
4. toHexString(byte[] b)
5. toHexString(byte[] b)
6. toHexString(byte[] b)
7. toHexString(byte[] b)
8. toHexString(byte[] b)
9. toHexString(byte[] b)