Here you can find the source of toByteArrays(String s)
public static byte[] toByteArrays(String s)
//package com.java2s; /* ======================================================================== * PlantUML : a free UML diagram generator * ======================================================================== * * (C) Copyright 2009-2017, Arnaud Roques * * Project Info: http://plantuml.com//from w w w . j av a 2 s.c o m * * This file is part of PlantUML. * * 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. * * * Original Author: Arnaud Roques */ public class Main { public static byte[] toByteArrays(String s) { final byte[] result = new byte[s.length() / 2]; for (int i = 0; i < result.length; i++) { result[i] = (byte) Integer.parseInt( s.substring(i * 2, i * 2 + 2), 16); } return result; } }