import java.time.*;

import java.time.format.*;

class CalendarDate8{

public static void main(String[] args) throws java.text.ParseException

{

//使用默认时区时钟瞬时时间创建 Clock.systemDefaultZone() -->即相对于 ZoneId.systemDefault()默认时区

LocalDateTime now = LocalDateTime.now();

System.out.println(now);

//自定义时区

LocalDateTime now2 = LocalDateTime.now(ZoneId.of("Europe/Paris"));

System.out.println(now2);//会以相应的时区显示日期

//构造一个对象

LocalDateTime d1 = LocalDateTime.of(2013, 12, 31, 23, 59, 59);

//解析String--->LocalDateTime

LocalDateTime d4 = LocalDateTime.parse("2013-12-31T23:59:59");

System.out.println(d4);

//使用DateTimeFormatter API 解析 和 格式化

DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm:ss");

LocalDateTime d6 = LocalDateTime.parse("2013/12/31 23:59:59", formatter);

System.out.println(formatter.format(d6));

//时间获取的一部分

System.out.println(d6.getYear());

System.out.println(d6.getMonth()); //这不是整数，而是枚举

System.out.println(d6.getDayOfYear());

System.out.println(d6.getDayOfMonth());

System.out.println(d6.getDayOfWeek());

System.out.println(d6.getHour());

System.out.println(d6.getMinute());

System.out.println(d6.getSecond());

System.out.println(d6.getNano()); //纳秒

//时间增减

LocalDateTime d7 = d6.minusDays(1);

LocalDateTime d8 = d6.plusHours(1).plusMinutes(30);

System.out.println(d7);

System.out.println(d8);

}

}