How to get the day of the week for a specified date in java

To get the day of the week for a specified date, you can use the following two methods to get the day of the week:

1. UseCalendarClass

//根据日期取得星期几 public static String getWeek(Date date){ String[] weeks = {"星期日","星期一","星期二","星期三","星期四","星期五","星期六"}; Calendar cal = Calendar.getInstance(); cal.setTime(date); int week_index = cal.get(Calendar.DAY_OF_WEEK) - 1; if(week_index<0){ week_index = 0; } return weeks[week_index]; }

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2. UseSimpleDateFormatClass

//根据日期取得星期几 public static String getWeek(Date date){ SimpleDateFormat sdf = new SimpleDateFormat("EEEE"); String week = sdf.format(date); return week; }

Note: The format string is case-sensitive

For the parameters passed in when creatingSimpleDateFormat: EEEE represents the day of the week, such as "Thursday"; MMMM represents the Chinese month, such as "October" "January"; MM represents the month, such as "11"; yyyy represents the year, such as "2010"; dd represents the day, such as "25".

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