Java Tools class Date date class app

Directly on the code:

Package Test;import Java.text.dateformat;import Java.text.parseexception;import java.text.simpledateformat;import Java.util.date;public class Test {public static void main (string[] args) {Date date = new Date ();//Get system Current time System.out.pri NTLN (date);//print system current time long times = Date.gettime ();D ate d2 = new Date;//Use a defined date formatting tool class DateFormat df = dateformat.getd Ateinstance (Dateformat.default); System.out.println (Df.format (date));//convert string to date object try {date D3 = Df.parse ("15-03-04"); SYSTEM.OUT.PRINTLN (D3);} catch (ParseException e) {//TODO auto-generated catch Blocke.printstacktrace ();} Custom format format date and time//note: month mm minutes mm seconds: ss MS: Ssssimpledateformat SDF = new SimpleDateFormat ("Yyyy/mm/dd Hh:mm:ss:SSS"); System.out.println (Sdf.format (New Date ()));//Use System.currenttimemillis () to get the current time long time2 = System.currenttimemillis ();D ate d = new Date (time); System.out.println (d);/*calendar Calendar = Calendar.getinstance ();//system.out.println (calendar.tostring ());// Print the obtained calendarint year = Calendar.get (Calendar.yeaR);//Gets the year int month = Calendar.get (calendar.month);//Gets the month int day = calendar.get (calendar. Day_of_month);//Get the month to note that the month and the actual difference in the one month array subscript is 0 start//Indicates the month's Get and set field numbers. This is a calendar-specific value. The first month of the year in the Gregorian and Julian calendars is January, which is 0; the last one months depend on the number of months in the year. Int week = Calendar.get (Calendar.day_of_week);//Get DaySystem.out.println (year+ "-" +month+ "-" +day);//Print Date 2015-7-10/ /SYSTEM.OUT.PRINTLN (year); string[] months = {"January", "February", "March", "April", "May", "June", "July", "August"};//if you want to achieve printing the actual month can be achieved SYSTEM.OUT.PRINTLN (Months[month] );///0-11 so that you can print the correct month string[] weeks = {"", "Sunday", "Monday", "Tuesday"};//week of storage because it was developed by foreigners, so the first storage is Sunday So it's the same way as the month. SYSTEM.OUT.PRINTLN (Weeks[week]); System.out.println (Calendar.get (calendar.day_of_month)); System.out.println (Calendar.get (Calendar.hour_of_day));//24 hours String str = String.Format ("%d-%d month-%d Day", Year,month, day);//Gets the string of the format we want System.out.println (str);//%s string%c char%d int%f float Double the various types of SYSTEM.OUT.PRINTLN (String.Format ("%.2f", 10/3.0) to be used when formatting, *2015-7-108 month Monday10212015-July-10th 3.33 * */}} 

Hope to be useful to everyone

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

Java Tools class Date date class app