Here you can find the source of unquote(String s)
public static String unquote(String s)
//package com.java2s; /**//from w w w. j a va 2 s . co m * Copyright ? 2013 - 2017 WaveMaker, 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. */ public class Main { public static String unquote(String s) { if (s == null) { return null; } if (s.startsWith("'") && s.endsWith("'") || s.startsWith("\"") && s.endsWith("\"") || s.startsWith("`") && s.endsWith("`")) { s = s.substring(1, s.length() - 1); } return s; } private static String substring(String s, int i, String substring, int direction) { if (direction >= 0) { return s.substring(i + substring.length()); } else { return s.substring(0, i); } } }