package com.itheima_67;

import java.util.Calendar;

/*
   public abstract void add(int field,int amount);根据日历的规则，将指定的时间量添加或减去给定的日历字段
   public final void set(int yer,int month,int date);设置当前日历的年月日
 */
public class CalendarDemo {
    public static void main(String[] args) {
        //创建日历类对象
        Calendar c = Calendar.getInstance();
//        int year = c.get(Calendar.YEAR);
//        int month = c.get(Calendar.MONTH);
//        int date = c.get(Calendar.DATE);
//        System.out.println(year + "年" + month + "月"  + date + "日");

        //public abstract void add(int field,int amount);根据日历的规则，将指定的时间量添加或减去给定的日历字段
        //需求1:3年前的今天
//        c.add(Calendar.YEAR,-3);
//        int year = c.get(Calendar.YEAR);
//        int month = c.get(Calendar.MONTH);
//        int date = c.get(Calendar.DATE);
//        System.out.println(year + "年" + month + "月"  + date + "日");

        //需求2:10年后的5天前
//        c.add(Calendar.YEAR,10);
//        c.add(Calendar.DATE,-5);
//        int year = c.get(Calendar.YEAR);
//        int month = c.get(Calendar.MONTH);
//        int date = c.get(Calendar.DATE);
//        System.out.println(year + "年" + month + "月"  + date + "日");
        //public final void set(int yer,int month,int date);设置当前日历的年月日
        c.set(2048,11,11);
        int year = c.get(Calendar.YEAR);
        int month = c.get(Calendar.MONTH);
        int date = c.get(Calendar.DATE);
        System.out.println(year + "年" + month + "月"  + date + "日");
    }
}