Here you can find the source of unicode(String ipStr)
public static String unicode(String ipStr)
//package com.java2s; /**/*from w ww . j a v a 2 s .c o m*/ * Copyright 2014 Yahoo! Inc. 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. * See accompanying LICENSE file. */ public class Main { public static String unicode(String ipStr) { if (ipStr == null) return ipStr; switch (ipStr) { case "\\u0001": return "\u0001"; case "\\u0002": return "\u0002"; case "\\u0003": return "\u0003"; case "\\u0004": return "\u0004"; case "\\u0005": return "\u0005"; case "\\u0006": return "\u0006"; case "\\n"://TODO: This is not a unicode , find a proper home for this. return "\n"; } return ipStr; } }