JAVA 编一个计算某天是星期几，且处于单双周的程序？

public static void displayDayOfWeek(Date date){

Calendar c = Calendar.getInstance()

c.setTime(date)

int week_num =c.get(Calendar.WEEK_OF_YEAR)

System.out.print("是第"+week_num+"周")

int dayOfWeek = c.get(Calendar.DAY_OF_WEEK)

switch(dayOfWeek){

case 1:System.out.println("星期日!")break

case 2:System.out.println("星期一!")break

case 3:System.out.println("星期二!")break

case 4:System.out.println("星期三!")break

case 5:System.out.println("星期四!")break

case 6:System.out.println("星期五!")break

case 7:System.out.println("星期六!")break

}

1、使用Calendar类\x0d\x0a/**\x0d\x0a* 获取当前日期是星期几

\x0d\x0a*\x0d\x0a* @param dt\x0d\x0a* @return 当前日期是星期几\x0d\x0a*/\x0d\x0apublic static String getWeekOfDate(Date dt) {\x0d\x0aString[] weekDays = {"星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"}\x0d\x0aCalendar cal = Calendar.getInstance()\x0d\x0acal.setTime(dt)\x0d\x0aint w = cal.get(Calendar.DAY_OF_WEEK) - 1\x0d\x0aif (w 回答于 2022-11-16

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