Java BCD Convert To bcd2str(byte[] b, int offset, int len, boolean padLeft)

Description

converts a BCD representation of a number to a String

License

Open Source License

Parameter

Parameter	Description
b	- BCD representation
offset	- starting offset
len	- BCD field len
padLeft	- was padLeft packed?

Return

the String representation of the number

Declaration

public static String bcd2str(byte[] b, int offset, int len, boolean padLeft) 

Method Source Code

//package com.java2s;
/*/*from ww  w  .ja  va  2  s  . c  o m*/
 * jPOS Project [http://jpos.org]
 * Copyright (C) 2000-2012 Alejandro P. Revilla
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero 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
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

public class Main {
    /**
     * converts a BCD representation of a number to a String
     * 
     * @param b - BCD representation
     * @param offset - starting offset
     * @param len - BCD field len
     * @param padLeft - was padLeft packed?
     * @return the String representation of the number
     */
    public static String bcd2str(byte[] b, int offset, int len, boolean padLeft) {
        StringBuilder d = new StringBuilder(len);
        int start = (((len & 1) == 1) && padLeft) ? 1 : 0;
        for (int i = start; i < len + start; i++) {
            int shift = ((i & 1) == 1 ? 0 : 4);
            char c = Character.forDigit(((b[offset + (i >> 1)] >> shift) & 0x0F), 16);
            if (c == 'd')
                c = '=';
            d.append(Character.toUpperCase(c));
        }
        return d.toString();
    }
}

Related

1. BCD2ASC(byte[] bytes)
2. bcd2Ascii(byte[] bytes)
3. bcd2str(byte[] b)
4. bcd2Str(byte[] bytes)
5. bcd2String(byte[] bytes)
6. bcdNibbleToInt(byte b, boolean high)
7. bcdToByte(byte src)