calendar js网页制作的日历`````````

calendar js 时间:2022-02-24 阅读:()

JAVA设计实现日历计算程序

展开全部 import java.text.*; import java.util.*; public class Test36 { public static void main(String[] args) { try { SimpleDateFormat farmatter = new SimpleDateFormat("yyyy-MM-dd"); Date d1, d2; int year, month; String temp; Scanner scan = new Scanner(System.in); System.out.print("请输入一个年月值年份："); year = scan.nextInt(); System.out.print("月份："); month = scan.nextInt(); MyCalendar.listCalendar(year, month); System.out.print("请输入一个日期(yyyy-MM-dd)："); temp = scan.next(); d1 = farmatter.parse(temp); System.out.println(d1.toLocaleString() + " 是 " + MyCalendar.getDayOfWeek(d1)); System.out.print("请输入两个日期(yyyy-MM-dd) "); System.out.print("日期1 : "); temp = scan.next(); d1 = farmatter.parse(temp); System.out.print("日期2 : "); temp = scan.next(); d2 = farmatter.parse(temp); int diff = MyCalendar.dateDiff(d1, d2); System.out.printf("%s 和 %s 之间相隔 %d 天 ", d1.toLocaleString(), d2.toLocaleString(), diff); } catch (Exception e) { e.printStackTrace(); } } } class MyCalendar{ //1）用户输入一个年份和月份，程序输出这个月的月历，每星期一行，星期天开始，星期六结束。 public static void listCalendar(int year, int month){ if(month<1 || month>12){ System.out.println(month + " 是非法的月份值，它的有效范围是 1~12"); return; } System.out.println(" " + year + " - " + month); System.out.println(" ---------------------------"); System.out.printf("%4s%4s%4s%4s%4s%4s%4s ", "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"); try{ Calendar c = Calendar.getInstance(); c.set(year, month-1, 1); int num = getDays(year, month); //本月天数 int i; for(i=0; i System.out.print(" "); } for(i=0; i c.set(year, month-1, i+1); System.out.printf("%4s", i+1); if(c.get(Calendar.DAY_OF_WEEK) == Calendar.SATURDAY){ System.out.println(); } } System.out.println(); } catch(Exception e){ e.printStackTrace(); } } //2）用户输入一个日期，程序显示这个日期当天是星期几。 public static String getDayOfWeek(Date d){ String[] weeks = new String[]{"星期天","星期一","星期二","星期三","星期四","星期五","星期六"}; Calendar c = Calendar.getInstance(); c.setTime(d); return weeks[c.get(Calendar.DAY_OF_WEEK)-1]; } //3）用户输入两个日期，程序计算这两个日期相差的天数。 public static int dateDiff(Date d1, Date d2) throws Exception { int i; int[] days = new int[]{31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; Calendar c1, c2; int y1, y2; int diff0 = 0, diff1 = 0, diff2 = 0; c1 = Calendar.getInstance(); c1.setTime(d1); y1 = c1.get(Calendar.YEAR); c2 = Calendar.getInstance(); c2.setTime(d2); y2 = c2.get(Calendar.YEAR); //计算d1日期到d1所在年份第一天相隔的天数 days[1] = isLeapYear(y1) ? 29 : 28; for(i=1; i<=c1.get(Calendar.MONTH); i++){ diff1 += days[i-1]; } //计算d2日期到d2所在年份第一天相隔的天数 days[1] = isLeapYear(y2) ? 29 : 28; for(i=1; i<=c2.get(Calendar.MONTH); i++){ diff2 += days[i-1]; } //计算d1、d2两个日期的年份相隔的天数 if(y1 < y2){ for(i=y1; i diff0 += isLeapYear(i) ? 366 : 365; } } else if(y1 > y2){ for(i=y2; i diff0 += isLeapYear(i) ? 366 : 365; } diff0 *= -1; } return diff0 + diff2 - diff1 + c2.get(Calendar.DATE) - c1.get(Calendar.DATE); } //判断一个年份是否是闰年 public static boolean isLeapYear(int year){ return ((year%400==0) || (year%4==0 && year%100!=0)) ? true : false; } //返回某月的天数 public static int getDays(int year, int month){ if(month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12){ return 31; } else if(month == 4 || month == 6 || month == 9 || month == 11){ return 30; } else{ if(isLeapYear(year) == true){ return 29; } else{ return 28; } } } } 运行测试：请输入一个年月值年份：2011 月份：6 2011 - 6 --------------------------- Sun Mon Tue Wed Thu Fri Sat 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 请输入一个日期(yyyy-MM-dd)：2011-6-15 2011-6-15 0:00:00 是星期三请输入两个日期(yyyy-MM-dd) 日期1 : 2009-3-10 日期2 : 2011-6-15 2009-3-10 0:00:00 和 2011-6-15 0:00:00 之间相隔 827 天