package J20250808.localDateTime; import java.time.LocalDateTime; /** * @author WanJl * @version 1.0 * @title Demo04_LocalDateTimeTest * @description * @create 2025/8/8 */ public class Demo04_LocalDateTimeTest { public static void main(String[] args) { LocalDateTime dateTime = LocalDateTime.of(2012, 2, 3, 15, 6, 35); //添加或者减去年 public LocalDateTime plusYears (long years) LocalDateTime dateTime1 = dateTime.plusYears(10); System.out.println(dateTime1); LocalDateTime dateTime2 = dateTime.plusYears(-20); System.out.println(dateTime2); //添加或者减去月 public LocalDateTime plusMonths(long months) //添加或者减去日 public LocalDateTime plusDays(long days) //添加或者减去时 public LocalDateTime plusHours(long hours) //添加或者减去分 public LocalDateTime plusMinutes(long minutes) //添加或者减去秒 public LocalDateTime plusSeconds(long seconds) //添加或者减去周 public LocalDateTime plusWeeks(long weeks) } }