Here you can find the source of toHexString(byte b[])
| Parameter | Description |
|---|---|
| b | bytes array to convert to a hexadecimal string |
public static String toHexString(byte b[])
//package com.java2s; //License from project: Open Source License public class Main { /**/*from w ww .j a va 2 s . c om*/ * to hex converter */ private static final char[] toHex = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' }; /** * convert an array of bytes to an hexadecimal string * @return a string * @param b bytes array to convert to a hexadecimal * string */ public static String toHexString(byte b[]) { int pos = 0; char[] c = new char[b.length * 2]; for (int i = 0; i < b.length; i++) { c[pos++] = toHex[(b[i] >> 4) & 0x0F]; c[pos++] = toHex[b[i] & 0x0f]; } return new String(c); } /** * Turns a long into a byte array, then applies * toHexString(byte[]). * @param aLong * @return */ public static String toHexString(long aLong) { byte[] bytes = new byte[8]; bytes[7] = (byte) ((aLong >>> 0) & 0xFF); bytes[6] = (byte) ((aLong >>> 8) & 0xFF); bytes[5] = (byte) ((aLong >>> 16) & 0xFF); bytes[4] = (byte) ((aLong >>> 24) & 0xFF); bytes[3] = (byte) ((aLong >>> 32) & 0xFF); bytes[2] = (byte) ((aLong >>> 40) & 0xFF); bytes[1] = (byte) ((aLong >>> 48) & 0xFF); bytes[0] = (byte) ((aLong >>> 56) & 0xFF); return toHexString(bytes); } /** * Turns a double into a byte array, then applies * toHexString(byte[]). * @param aLong * @return */ public static String toHexString(double aDouble) { return toHexString(Double.doubleToLongBits(aDouble)); } /** * Turns an int into a byte array, then applies * toHexString(byte[]). * @param anInt * @return */ public static String toHexString(int anInt) { byte[] b = new byte[4]; b[3] = (byte) (anInt & 0xFF); b[2] = (byte) ((anInt & 0xFF00) >> 8); b[1] = (byte) ((anInt & 0xFF0000) >> 16); b[0] = (byte) ((anInt & 0xFF000000) >> 24); return toHexString(b); } }