如何获得一个月第一天的名字？ [英] How to get name of the first day of a month?

问题描述

如何获得本月的第一天？因此，对于今年1月份，它将在周日返回。然后在二月它会在周三返回。

How would I go about getting the first day of the month? So for January, of this year, it would return Sunday. And then for February it would return Wednesday.

推荐答案

要获得当月的第一个日期，请使用 java.util.Calendar中。首先获取它的实例并将字段 Calendar.DAY_OF_MONTH 设置为该月的第一个日期。由于任何月份的第一天为1，取代 cal.getActualMinimum（Calendar.DAY_OF_MONTH），此处可以使用1。

To get the first date of the current month, use java.util.Calendar. First get an instance of it and set the field Calendar.DAY_OF_MONTH to the first date of the month. Since the first day of any month is 1, inplace of cal.getActualMinimum(Calendar.DAY_OF_MONTH), 1 can be used here.

private Date getFirstDateOfCurrentMonth() {
  Calendar cal = Calendar.getInstance();
  cal.set(Calendar.DAY_OF_MONTH, cal.getActualMinimum(Calendar.DAY_OF_MONTH));
  return cal.getTime();
}

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