Java provides the Date class available in java.util package, this class encapsulates the current date and time. Java Dates are LocalDate, Represents a date (year, month, day (yyyy-MM-dd)). Java Time are LocalTime, Represents a time (hour, minute, second and nanoseconds (HH-mm-ss-ns)). Calendar class in Java is an abstract class that provides methods for converting date between a specific instant in time and a set of calendar fields such as MONTH, YEAR, HOUR, etc
import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; @SuppressWarnings("ALL") public class DataTimeDemo { public static void main(String[] args) { System.out.println(System.currentTimeMillis()); long year=(System.currentTimeMillis()/1000/60/60/24/365); System.out.println(year); //System.out.println(Long.MAX_VALUE); //System.out.println((Long.MAX_VALUE/1000/60/60/24/365)); //Date d =new Date(System.currentTimeMillis()); //Java 8 Date d =new Date();//MM-DD-YYYY System.out.println(d); System.out.println("Date : "+d.getDate()); System.out.println("Day : "+d.getDay()); //0 Sunday to 7-Saturday System.out.println("Month : "+d.getMonth());//0 Jan to 11 Dec System.out.println("Year : "+(d.getYear()+1900)); System.out.println("Time : "+d.getTime()); System.out.println("Hours : "+d.getHours()); System.out.println("Minutes : "+d.getMinutes()); System.out.println("Seconds : "+d.getSeconds()); GregorianCalendar o =new GregorianCalendar(); //System.out.println(o); System.out.println(o.isLeapYear(2020)); System.out.println("Date : "+o.get(Calendar.DATE)); System.out.println("Month : "+o.get(Calendar.MONTH)); System.out.println("Year : "+o.get(Calendar.YEAR)); System.out.println("Day of Week : "+o.get(Calendar.DAY_OF_WEEK)); //1-Sun to 7-Sat System.out.println("Day of Year : "+o.get(Calendar.DAY_OF_YEAR)); } }
1647422013418 52 Wed Mar 16 14:43:33 IST 2022 Date : 16 Day : 3 Month : 2 Year : 2022 Time : 1647422013422 Hours : 14 Minutes : 43 Seconds : 33 true Date : 16 Month : 2 Year : 2022 Day of Week : 4 Day of Year : 75To download raw file Click Here
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