Here you can find the source of toHex(final byte... bin)
| Parameter | Description |
|---|---|
| bin | a parameter |
public static final String toHex(final byte... bin)
//package com.java2s; //License from project: Open Source License public class Main { private static final char[] hex = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' }; /**//from ww w .ja v a 2 s. com * Encodes a series of bytes into a hexidecimal string (potentially with leading zeroes) with no separators between each * source byte * * @param bin * * @return */ public static final String toHex(final byte... bin) { if (bin == null || bin.length == 0) return ""; final char[] buffer = new char[bin.length * 2]; // i tracks input position, j tracks output position for (int i = 0, j = 0; i < bin.length; i++) { final byte b = bin[i]; buffer[j++] = hex[(b >> 4) & 0x0F]; buffer[j++] = hex[b & 0x0F]; } return new String(buffer); } /** * Encodes a series of bytes into a hexidecimal string with each source byte (represented in the output as a 2 digit * hexidecimal pair) separated by <code>separator</code><br /> * * @param separator * The character to insert between each byte (for example, <code>':'</code>) * @param bin * the series of bytes to encode * * @return a hexidecimal string with each source byte (represented in the output as a 2 digit hexidecimal pair) separated by * <code>separator</code> */ public static final String toHex(final char separator, final byte... bin) { if (bin == null || bin.length == 0) return ""; char[] buffer = new char[(bin.length * 3) - 1]; int end = bin.length - 1; int base = 0; // Store the index of buffer we're inserting into for (int i = 0; i < bin.length; i++) { byte b = bin[i]; buffer[base++] = hex[(b >> 4) & 0x0F]; buffer[base++] = hex[b & 0x0F]; if (i != end) buffer[base++] = separator; } return new String(buffer); } }