集册 Java实例教程 使用日期获取日期和时间

使用日期获取日期和时间

欢马劈雪     最近更新时间:2020-01-02 10:19:05

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在Java 8中使用日期时间API获取日期和时间

import java.time.DayOfWeek;

import java.time.LocalDateTime;

import java.time.Month;// from N o w  J a v a  .   c o m


public class Main {


  public static void main(String[] args) {

    LocalDateTime ldt = LocalDateTime.now();

    System.out.println("Local Date and Time: " + ldt);


    // Obtain the LocalDateTime object of the date 11/11/2000 at 12:00

    LocalDateTime ldt2 = LocalDateTime.of(2000, Month.NOVEMBER, 11, 12, 00);

    System.out.println("Specified Date and Time: " + ldt2);


    // Obtain the month from LocalDateTime object

    Month month = ldt.getMonth();

    int monthValue = ldt.getMonthValue();
    /*
    N o w J a v a . c o m - 时  代  Java 提供
    */

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

    System.out.println("Month Value: " + monthValue);


    // Obtain day of Month, Week, and Year

    int day = ldt.getDayOfMonth();

    DayOfWeek dayWeek = ldt.getDayOfWeek();

    int dayOfYr = ldt.getDayOfYear();

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

    System.out.println("Day Of Week: " + dayWeek);

    System.out.println("Day of Year: " + dayOfYr);


    // Obtain year

    int year = ldt.getYear();

    System.out.println("Date: " + monthValue + "/" + day + "/" + year);


    int hour = ldt.getHour();

    int minute = ldt.getMinute();

    int second = ldt.getSecond();

    System.out.println("Current Time: " + hour + ":" + minute + ":" + second);


    // Calculation of Months, etc.

    LocalDateTime currMinusMonths = ldt.minusMonths(12);

    LocalDateTime currMinusHours
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