java.time.LocalDateTime.withHour() 方法示例 java.time.LocalDateTime.withDayOfYear() 方法示例 java.time.LocalDateTime.withMinute() Method Example java.time.LocalDateTime.withHour() 方法示例 package com.codingdict; import java.time.LocalDateTime; public class LocalDateTimeDemo { public static void main(String[] args) { LocalDateTime date = LocalDateTime.parse("2017-01-03T10:15:30"); LocalDateTime result = date.withHour(3); System.out.println(result); } } java.time.LocalDateTime.withDayOfYear() 方法示例 java.time.LocalDateTime.withMinute() Method Example