content: package com.zhongou.common.calendarcommon;
  
  import java.util.Calendar;
  
  public class SpecialCalendar {
  
  	private int daysOfMonth = 0;      //某月的天数
  	private int dayOfWeek = 0;        //具体某一天是星期几
  
  
  
  
  	// 判断是否为闰年
  	public boolean isLeapYear(int year) {
  		if (year % 100 == 0 && year % 400 == 0) {
  			return true;
  		} else if (year % 100 != 0 && year % 4 == 0) {
  			return true;
  		}
  		return false;
  	}
  
  	//得到某月有多少天数
  	public int getDaysOfMonth(boolean isLeapyear, int month) {
  		switch (month) {
  			case 1:
  			case 3:
  			case 5:
  			case 7:
  			case 8:
  			case 10:
  			case 12:
  				daysOfMonth = 31;
  				break;
  			case 4:
  			case 6:
  			case 9:
  			case 11:
  				daysOfMonth = 30;
  				break;
  			case 2:
  				if (isLeapyear) {
  					daysOfMonth = 29;
  				} else {
  					daysOfMonth = 28;
  				}
  
  		}
  		return daysOfMonth;
  	}
  
  	//指定某年中的某月的第一天是星期几
  	public int getWeekdayOfMonth(int year, int month){
  		Calendar cal = Calendar.getInstance();
  		cal.set(year, month-1, 1);
  		dayOfWeek = cal.get(Calendar.DAY_OF_WEEK)-1;
  		return dayOfWeek;
  	}
  
  
  }
  