关于周的计算

来源：互联网发布：键盘组合键软件编辑：程序博客网时间：2024/04/29 11:43

package com.sais.inkaNet.reportStatistics.operationBeanavior.service;

import java.util.Calendar;
import java.util.LinkedHashMap;
import java.util.Map;

public class FindWeek {
private Map<String,String> week;

public Map<String, String> getWeek() {
return week;
}

public void setWeek(Map<String, String> week) {
this.week = week;
}

/**
* @param args
*/
public void main(String[] args) {

  getMonthWeek(2011,7);

}
//根据年、月、和月的第几周，得到这是哪年的第几周

public int getFirstDate(int year,int month,int week) {

  Calendar c = Calendar.getInstance();
  c.set(Calendar.YEAR, year);
  c.set(Calendar.MONTH, month-1);
  c.set(Calendar.WEEK_OF_MONTH, week);
  //String day2=new SimpleDateFormat("yyyy-MM-dd").format(c.getTime());

  //System.out.print(day2);
  return c.get(Calendar.WEEK_OF_YEAR);
  }

//计算出哪年的那月有几周

public Map<String,String> getMonthWeek(int year,int month){

     Calendar c = Calendar.getInstance();
        c.set(Calendar.YEAR, year); // 2010年
        c.set(Calendar.MONTH, month-1); // 6 月
//        System.out.println("------------" + c.get(Calendar.YEAR) + "年" + (c.get(Calendar.MONTH)+1 ) + "月的天数和周数-------------");
//        System.out.println("天数：" + c.getActualMaximum(Calendar.DAY_OF_MONTH));
        System.out.println("周数：" + c.getActualMaximum(Calendar.WEEK_OF_MONTH));
       // return c.getActualMaximum(Calendar.WEEK_OF_MONTH);
        int tem= Integer.valueOf(c.getActualMaximum(Calendar.WEEK_OF_MONTH));
        week = new LinkedHashMap<String,String>();
        for(int i=1;i<=tem;i++){
         week.put("0"+i, String.valueOf(i));
        }
        return week;
    }

}