Here you can find the source of getYYYYMMDDFormat()
SimpleDateFormat
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SimpleDateFormat
public static SimpleDateFormat getYYYYMMDDFormat()
//package com.java2s; /*//from www. j av a2 s . com * Copyright 2017 Marcus Portmann * * 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. */ import java.text.SimpleDateFormat; public class Main { private static ThreadLocal<SimpleDateFormat> yyyymmddFormat = new ThreadLocal<SimpleDateFormat>() { @Override protected SimpleDateFormat initialValue() { return new SimpleDateFormat("yyyy-MM-dd"); } }; /** * Returns the <b>yyyy-MM-dd</b> thread-local <code>SimpleDateFormat</code>. * * @return the <b>yyyy-MM-dd</b> thread-local <code>SimpleDateFormat</code> */ public static SimpleDateFormat getYYYYMMDDFormat() { return yyyymmddFormat.get(); } }