Here you can find the source of format(final LocalDate source)
public static String format(final LocalDate source)
//package com.java2s; /*/*w w w . jav a 2 s. c o m*/ * DISCLAIMER * * Copyright 2018 ArangoDB GmbH, Cologne, Germany * * 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. * * Copyright holder is ArangoDB GmbH, Cologne, Germany */ import java.time.Instant; import java.time.LocalDate; import java.time.LocalDateTime; import java.time.OffsetDateTime; import java.time.ZonedDateTime; import java.time.format.DateTimeFormatter; public class Main { public static String format(final Instant source) { return DateTimeFormatter.ISO_INSTANT.format(source); } public static String format(final LocalDate source) { return DateTimeFormatter.ISO_LOCAL_DATE.format(source); } public static String format(final OffsetDateTime source) { return DateTimeFormatter.ISO_OFFSET_DATE_TIME.format(source); } public static String format(final LocalDateTime source) { return DateTimeFormatter.ISO_LOCAL_DATE_TIME.format(source); } public static String format(final ZonedDateTime source) { return DateTimeFormatter.ISO_ZONED_DATE_TIME.format(source); } }