Here you can find the source of singleQuote(Object thing)
public static String singleQuote(Object thing)
//package com.java2s; /*//from ww w.j a v a2s.c om * Copyright 2013 the original author or authors. * * 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 { protected static final String SINGLE_QUOTE = "\'"; /** * Surrounds given object's {@link Object#toString()} with single quotes. Given <code>null</code>, returns * <code>null</code>. */ public static String singleQuote(Object thing) { return thing == null ? (String) null : new StringBuilder().append(SINGLE_QUOTE).append(thing).append(SINGLE_QUOTE).toString(); } }