Here you can find the source of appendByteAsHex(StringBuilder sb, byte b)
public static void appendByteAsHex(StringBuilder sb, byte b)
//package com.java2s; /**/*from w ww . j a v a 2 s . co m*/ * Copyright 2011 bccapi.com * * 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. */ public class Main { public static void appendByteAsHex(StringBuilder sb, byte b) { int unsignedByte = b & 0xFF; if (unsignedByte < 16) { sb.append("0"); } sb.append(Integer.toHexString(unsignedByte)); } }