Here you can find the source of convertStringToHex(String str)
public static String convertStringToHex(String str)
//package com.java2s; /*/*from www .ja v a2s . c om*/ * Copyright (c). * * * The MIT License (MIT) * * Copyright (c) 2015 Win Tun Lin * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * */ import javax.xml.bind.DatatypeConverter; public class Main { public static String convertStringToHex(String str) { char[] chars = str.toCharArray(); StringBuffer hex = new StringBuffer(); for (int i = 0; i < chars.length; i++) { hex.append(Integer.toHexString((int) chars[i])).append(" "); } return hex.toString(); } public static String toHexString(byte[] array) { return DatatypeConverter.printHexBinary(array); } }