java - 如何在 Java 中按日期推断信息

Question

我有以下格式的对象日期:2014-05-20 18:17:26.337

我尝试这样做:

Calendar c = Calendar.getInstance();
c.setTime(myDate); 
int dayOfWeek = c.get(Calendar.DAY_OF_WEEK);
int dayOfMonth = c.get(Calendar.DAY_OF_MONTH);
int Month = c.get(Calendar.MONTH);
int year = c.get(Calendar.YEAR);

但是信息是错误的..

如何解决？

Answer 1

这是期望值，请仔细阅读javadoc: http://docs.oracle.com/javase/7/docs/api/java/util/Calendar.html#MONTH

月份:

Field number for get and set indicating the month. This is a calendar-specific value. The first month of the year in the Gregorian and Julian calendars is JANUARY which is 0; the last depends on the number of months in a year.

对于星期几:

public static final int DAY_OF_WEEK Field number for get and set indicating the day of the week. This field takes values SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, and SATURDAY.