Here you can find the source of intToFixedLengthHexString(int i, int length)
| Parameter | Description |
|---|---|
| i | The source integer to be converted. |
| length | The length of the string to be zero-padded |
public static String intToFixedLengthHexString(int i, int length)
//package com.java2s; /*/*w w w.jav a 2s . c om*/ * Copyright (c) 2010-2011 Brigham Young University * * This file is part of the BYU RapidSmith Tools. * * BYU RapidSmith Tools is free software: you may 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. * * BYU RapidSmith Tools 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. * * A copy of the GNU General Public License is included with the BYU * RapidSmith Tools. It can be found at doc/gpl2.txt. You may also * get a copy of the license at <http://www.gnu.org/licenses/>. * */ public class Main { /** * Converts an integer into a fixed, zero-padded hexadecimal string representation. * @param i The source integer to be converted. * @param length The length of the string to be zero-padded * @return A zero-padded hexadecimal string of the integer, i of length length. */ public static String intToFixedLengthHexString(int i, int length) { String s = Integer.toHexString(i); String pad = "0"; while (s.length() < length) { s = pad.concat(s); } if (s.length() > length) { s = s.substring(0, length); } return s.toUpperCase(); } public static String toHexString(byte b) { StringBuffer buf = new StringBuffer(); char[] hexChars = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; int high = 0; int low = 0; high = ((b & 0xf0) >> 4); low = (b & 0x0f); buf.append(hexChars[high]); buf.append(hexChars[low]); return buf.toString(); } public static String toHexString(byte[] block) { StringBuffer buf = new StringBuffer(); char[] hexChars = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; int len = block.length; int high = 0; int low = 0; for (int i = 0; i < len; i++) { high = ((block[i] & 0xf0) >> 4); low = (block[i] & 0x0f); buf.append(hexChars[high]); buf.append(hexChars[low]); } return buf.toString(); } public static String toHexString(int integer) { byte block[] = new byte[4]; block[0] = (byte) ((integer >> 24) & 0x000000FF); block[1] = (byte) ((integer >> 16) & 0x000000FF); block[2] = (byte) ((integer >> 8) & 0x000000FF); block[3] = (byte) (integer & 0x000000FF); StringBuffer buf = new StringBuffer(); char[] hexChars = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; int len = block.length; int high = 0; int low = 0; for (int i = 0; i < len; i++) { high = ((block[i] & 0xf0) >> 4); low = (block[i] & 0x0f); buf.append(hexChars[high]); buf.append(hexChars[low]); } return buf.toString(); } /** * This changes a normal string into the hexadecimal string equivalent. * It will add two hexadecimal characters for each character of the string. * @param s The string to be converted * @return The string s converted to hexadecimal */ public static String toHexString(String s) { char[] hexChar = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; StringBuffer sb = new StringBuffer(s.length() * 2); for (int i = 0; i < s.length(); i++) { sb.append(hexChar[(s.charAt(i) & 0xf0) >>> 4]); sb.append(hexChar[(s.charAt(i) & 0x0f)]); } return sb.toString(); } }