【寒假练习】Java实现万年历

import java.util.Scanner;
public class Main {
			//判断给定的年份是否为闰年，true:闰年；false：平年
			//判断方法：闰年年份需满足：能被4整除且能被100整除||能被400整除
			public  boolean isLeapYear(int year){
				return ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0));
			}


			//根据指定年份和月份求出该月份的天数
			public int getMonthDay(int year,int month){
				int total = 0;
				switch(month){
				case 1: total = 31;break;
				case 3: total = 31;break;
				case 5: total = 31;break;
				case 7: total = 31;break;
				case 8: total = 31;break;
				case 10: total = 31;break;
				case 12: total = 31;break;
				
				case 4: total = 30;break;
				case 6: total = 30;break;
				case 9: total = 30;break;
				case 11: total = 30;break;
				
				case 2: if(isLeapYear(year))//2月单独进行判断
							{total = 29;}
						else
							{total = 28;}
						break;
			}
				return total;
			}
			
			//判断某一年第一天星期几
			public int getFirtdayOfYear(int year) {
				int total = 0;
				int YearDay = 0;
				for(int i=1;i