Java tutorial
//package com.java2s; /* * Copyright (C) 2015 iChano incorporation's 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 { public static String hexToString(String s) { int i = 0; StringBuffer buf = new StringBuffer(1000); if (s == null) return ""; // if null we return null (to avoid any errors) while (i <= s.length() - 6) { char c = s.charAt(i); char next = s.charAt(i + 1); if (c == '\\' && (next == 'u' || next == 'U')) { String tmp = s.substring(i + 2, i + 6); try { int code = Integer.parseInt(tmp, 16); char unicode = (char) code; buf.append(unicode); i += 6; } catch (NumberFormatException e) { e.printStackTrace(); buf.append(c); i++; } } else { buf.append(c); i++; } } return buf.toString(); } public static int parseInt(String num) { Integer intNum = 0; try { intNum = Integer.parseInt(num); } catch (NumberFormatException e) { e.printStackTrace(); } return intNum; } }