java - 如何在java中只打印时间？

Question

DateFormat dateFormatOne = new SimpleDateFormat("HH:mm:ss");
dateFormatOne.setTimeZone(TimeZone.getTimeZone("UTC"));
Date dateOne = dateFormatOne.parse("10:00:00");

标签： java

Answer 1

• 格式将日期转换为字符串
• 解析将字符串转换为日期

public static void main(String[] args) throws ParseException {
    DateFormat dateFormatOne = new SimpleDateFormat("HH:mm:ss");
    dateFormatOne.setTimeZone(TimeZone.getTimeZone("UTC"));
    Date dateOne = dateFormatOne.parse("10:00:00");

    System.out.println(dateFormatOne.format(dateOne));
    System.out.println(dateFormatOne.format(new Date()));
}

输出

10:00:00
20:20:55

但我推荐 Java 8

System.out.print(LocalTime.of(10, 0, 0));