Here you can find the source of quoteString(String arg)
private static String quoteString(String arg)
//package com.java2s; /*/*from w w w .j av a 2 s. c o m*/ * Copyright (C) 2017 Baifendian Corporation * * 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 { private static String quoteString(String arg) { StringBuilder argbuf = new StringBuilder(arg.length() + 2); return argbuf.append('"').append(arg).append('"').toString(); } }