Java tutorial
//package com.java2s; /* * Copyright (C) 2014 The Android Open Source Project * * 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 { /** * Returns a byte array containing values parsed from the hex string provided. * * @param hexString The hex string to convert to bytes. * @return A byte array containing values parsed from the hex string provided. */ public static byte[] getBytesFromHexString(String hexString) { byte[] data = new byte[hexString.length() / 2]; for (int i = 0; i < data.length; i++) { int stringOffset = i * 2; data[i] = (byte) ((Character.digit(hexString.charAt(stringOffset), 16) << 4) + Character.digit(hexString.charAt(stringOffset + 1), 16)); } return data; } }