Java--LocalTime类获取时间信息

Java–LocalTime类获取时间信息

LocalTime nowTime = LocalTime.now();
System.out.println(nowTime);//获取时间
System.out.println(nowTime.getHour());//获取时
System.out.println(nowTime.getMinute());//获取分
System.out.println(nowTime.getSecond());//获取秒
System.out.println(nowTime.getNano());//获取纳秒

System.out.println(nowTime.withHour(19));//修改时
System.out.println(nowTime.withMinute(18));//修改分
System.out.println(nowTime.withSecond(17));//修改秒
System.out.println(nowTime.withNano(16));//修改纳秒

System.out.println(nowTime.minusHours(1));//一小时前
System.out.println(nowTime.minusMinutes(1));//一分钟前
System.out.println(nowTime.minusSeconds(1));//一秒钟前
System.out.println(nowTime.minusNanos(1));//一纳秒前

System.out.println(nowTime.plusHours(1));//一小时后
System.out.println(nowTime.plusMinutes(1));//一分钟后
System.out.println(nowTime.plusSeconds(1));//一秒钟后
System.out.println(nowTime.plusNanos(1));//一纳秒后

LocalTime other = LocalTime.now().minusHours(1);//一小时前
System.out.println(nowTime.isBefore(other));//比较当前时间是否在other对象时间之前
System.out.println(nowTime.isAfter(other));//比较当前对象时间是否在other对象时间之后
System.out.println(nowTime.compareTo(other));//比较当前对象时间与other对象时间在时间上的大小，为正，则nowTime晚

System.out.println(LocalTime.of(8, 20));//时分
System.out.println(LocalTime.of(8, 20, 30));//时分秒
System.out.println(LocalTime.of(8, 20, 30, 150));//时分秒纳秒
LocalTime mTime = LocalTime.of(8, 20, 30, 150);
System.out.println(LocalTime.ofSecondOfDay(mTime.toSecondOfDay()));//参数为距离当天零时的秒数
System.out.println(LocalTime.ofNanoOfDay(mTime.toNanoOfDay()));//参数为距离当天零时的纳秒数

System.out.println(LocalTime.parse("08:20:30"));
System.out.println(LocalTime.parse("082030", DateTimeFormatter.ofPattern("HHmmss")));