Java日期操作：加减天数与获取星期-优快云博客

本文链接：https://blog.youkuaiyun.com/ADA_Ivan/article/details/121486047

本文介绍了如何使用Java的LocalDate类进行日期操作，包括获取当前日期、指定日期的获取以及日期加减天数后对应星期的计算。通过实例展示了如何计算给定日期后的第5天和减去10天的日期及其星期值。

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//获得当前日期
   LocalDate localDate=LocalDate.now();//2021-11-23

   //获得固定日期
   LocalDate selfLocalDate=LocalDate.of(2021, 11, 23);//2021-11-23
   //获取年份
   int year = selfLocalDate.getYear(); // 2021
   //获取月份
   int month = selfLocalDate.getMonthValue(); // 11
   //获取日期
   int day = selfLocalDate.getDayOfMonth(); // 23
   //获取星期
   DayOfWeek weekday = selfLocalDate.getDayOfWeek();
   int value = weekday .getValue(); //2

   //日期加5天
   LocalDate tenDaysLater = selfLocalDate.plusDays(5);//2021-11-28
   int yearPlus = tenDaysLater.getYear(); // 2021
   int monthPlus = tenDaysLater.getMonthValue(); // 11
   int dayPlus = tenDaysLater.getDayOfMonth(); // 28
   DayOfWeek weekdayPlus = tenDaysLater.getDayOfWeek();
   int valuePlus = weekdayPlus .getValue(); //7

   //日期减5天
   LocalDate tenDaysAhead= selfLocalDate.minusDays(10);//2020-11-18
   int yearAhead = tenDaysLater.getYear(); // 2021
   int monthAhead = tenDaysLater.getMonthValue(); // 11
   int dayAhead = tenDaysLater.getDayOfMonth(); // 18
   DayOfWeek weekdayAhead = tenDaysAhead.getDayOfWeek();
   int valueAhead = weekdayAhead .getValue(); //4

日期获取java