package com.date;

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.Date;

/**

* @Author: EnjoyCoding

* @Date: 2020\5\1 0001 16:17

* @Description:

*/

public class CalendarDemo {

public static void setCalendarTime() throws ParseException {

String dateStr="2018-07-07 07:08:11";

SimpleDateFormat simpleDateFormat=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

Date date = simpleDateFormat.parse(dateStr);

Calendar calendar = Calendar.getInstance();

//通过calendar设置时间

calendar.setTime(date);

//获取calendar对应的时间

Date time = calendar.getTime();

System.out.println(time);

}

public static void setCalendarMonthDay() {

Calendar calendar = Calendar.getInstance();

//通过Calendar设置年月日

calendar.set(Calendar.MONTH, 7);

calendar.set(Calendar.DAY_OF_MONTH, 7);

calendar.set(Calendar.YEAR, 2018);

calendar.set(Calendar.HOUR_OF_DAY,19);

//通过Calendar获取时间，年月日

Date date = calendar.getTime();

int year = calendar.get(Calendar.YEAR);

//Calendar的月份是从0开始计算的，所以要加一才是真实的月份

int month = calendar.get(Calendar.MONTH) + 1;

int day = calendar.get(Calendar.DAY_OF_MONTH);

int hour = calendar.get(Calendar.HOUR_OF_DAY);

System.out.println(date);

System.out.println("year:" + year);

System.out.println("month:" + month);

System.out.println("day:" + day);

System.out.println("hour:" + hour);

}

}