Import the following package for Calendar class in Javaimport java.util.Calendar;Firstly, create a Calendar object and display the current dateCalendar calendar = Calendar.getInstance(); System.out.println("Current Date = " + calendar.getTime());Now, let us decrement the date using the add() method and Calendar.DATE constant. Set a negative value since we are decrementing the datecalendar.add(Calendar.DATE, -3);The following is an exampleExample Live Demoimport java.util.Calendar; public class Demo {    public static void main(String[] args) {       Calendar calendar = Calendar.getInstance();       System.out.println("Current Date = " + calendar.getTime());       // Decrementing date by 3       calendar.add(Calendar.DATE, -3);       ... Read More

Import the following package for Calendar class in Javaimport java.util.Calendar;Firstly, create a Calendar object and display the current dateCalendar calendar = Calendar.getInstance(); System.out.println("Current Date = " + calendar.getTime());Now, let us increment the date using the add() method and Calendar.DATE constantcalendar.add(Calendar.DATE, 2);The following is the complete exampleExample Live Demoimport java.util.Calendar; public class Demo {    public static void main(String[] args) {       Calendar calendar = Calendar.getInstance();       System.out.println("Current Date = " + calendar.getTime());       // Incrementing date by 2       calendar.add(Calendar.DATE, 2);       System.out.println("Updated Date = " + calendar.getTime());    } }OutputCurrent ... Read More

The Calendar.before() method returns whether this Calendar's time is before the time represented by the specified Object.First, let us set a date which is in the past (past date)Calendar beforeDate = Calendar.getInstance(); beforeDate.set(Calendar.YEAR, 2010); beforeDate.set(Calendar.MONTH, 05); beforeDate.set(Calendar.DATE, 30);Here is our date, which is 11-22-2018Calendar currentDate = Calendar.getInstance();Now, use the before() method to compare both the dates as shown in the following exampleExample Live Demoimport java.util.Calendar; public class Demo {    public static void main(String[] args) {       Calendar beforeDate = Calendar.getInstance();       beforeDate.set(Calendar.YEAR, 2010);       beforeDate.set(Calendar.MONTH, 05);       beforeDate.set(Calendar.DATE, 30);       ... Read More

The Calendar.after() method returns whether this Calendar's time is after the time represented by the specified Object.First, let us set a date which is after (future date) the current dateCalendar afterDate = Calendar.getInstance(); afterDate.set(Calendar.YEAR, 2025); afterDate.set(Calendar.MONTH, 05); afterDate.set(Calendar.DATE, 30);Here is our date, which is 11-22-2018Calendar currentDate = Calendar.getInstance();Now, use the after() method to compare both the dates as shown in the following exampleExample Live Demoimport java.util.Calendar; public class Demo {    public static void main(String[] args) {       Calendar afterDate = Calendar.getInstance();       afterDate.set(Calendar.YEAR, 2025);       afterDate.set(Calendar.MONTH, 05);       afterDate.set(Calendar.DATE, 30);     ... Read More

Set the month format as MMMM, while including the date-time format in SimpleDateFormat object.Firstly, set the date objectDate dt = new Date();Now, set the format for date-timeSimpleDateFormat dateFormat = new SimpleDateFormat("EEEE MMMM dd yyyy kk:mm:ss");Display the date with the format you wantdateFormat.format(dt)The following is an exampleExample Live Demoimport java.text.SimpleDateFormat; import java.util.Date; public class Demo {    public static void main(String[] argv) throws Exception {       Date dt = new Date();       SimpleDateFormat dateFormat;       dateFormat = new SimpleDateFormat("EEEE MMMM dd yyyy kk:mm:ss");       System.out.println(dateFormat.format(dt));    } }OutputThursday November 22 2018 11:45:14

Use the SimpleDateFormat class to display time in 24-hour format.Set the formatDate dt = new Date(); SimpleDateFormat dateFormat; dateFormat = new SimpleDateFormat("kk:mm:ss");Now, the following will display time in 24-hour formatdateFormat.format(dt)The following is an exampleExample Live Demoimport java.text.SimpleDateFormat; import java.util.Date; public class Demo {    public static void main(String[] argv) throws Exception {       Date dt = new Date();       SimpleDateFormat dateFormat;       dateFormat = new SimpleDateFormat("kk:mm:ss");       System.out.println("Time in 24 hr format = "+dateFormat.format(dt));    } }OutputTime in 24 hr format = 11:40:52

Use the SimpleDateFormat class to display time in 12-hour format.Set the formatDate dt = new Date(); SimpleDateFormat dateFormat; dateFormat = new SimpleDateFormat("hh:mm:ss a");Now, the following will display time in 12-hour formatdateFormat.format(dt)The following is an exampleExample Live Demoimport java.text.SimpleDateFormat; import java.util.Date; public class Demo {    public static void main(String[] argv) throws Exception {       Date dt = new Date();       SimpleDateFormat dateFormat;       dateFormat = new SimpleDateFormat("hh:mm:ss a");       System.out.println("Time in 12 hr format = "+dateFormat.format(dt));    } }OutputTime in 12 hr format = 11:33:53 AM

To list short weekday names, use the getShortWeekdays() from the DateFormatSymbols class in Java.DateFormatSymbols is a class for encapsulating localizable date-time formatting data.Get short weekday names in an arrayString[] days = new DateFormatSymbols().getShortWeekdays();Display the weekdayfor (int i = 0; i < days.length; i++) { String weekday = days[i]; System.out.println(weekday); }The following is an example −Example Live Demoimport java.text.DateFormatSymbols; public class Demo {    public static void main(String[] args) {       String[] days = new DateFormatSymbols().getShortWeekdays();       for (int i = 0; i < days.length; i++) {          String weekday = days[i];          System.out.println(weekday);       }    } }OutputSun Mon Tue Wed Thu Fri Sat

To list short months, use the getShortMonths() from the DateFormatSymbols class in Java.DateFormatSymbols is a class for encapsulating localizable date-time formatting data.Get short month names in an arrayString[] months = new DateFormatSymbols().getShortMonths();Display the monthsfor (int i = 0; i < months.length - 1; i++) { String month = months[i]; System.out.println("Month ["+i+"] = " + month); }The following is an example −Example Live Demoimport java.text.DateFormatSymbols;    public class Demo {       public static void main(String[] args) {       // short months       String[] months = new DateFormatSymbols().getShortMonths();       for (int i = 0; i ... Read More

For date formatting symbols, use the DateFormatSymbols class.Firstly, set weekdays using a string arrayString[] weekDays2 = { "", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday" };Now, set short week days withDateFormatSymbols mySymbols = new DateFormatSymbols(); mySymbols.setShortWeekdays(weekDays2);Get the date −dateFormat = new SimpleDateFormat("EEEE, dd MMM yyyy", mySymbols); System.out.println(dateFormat.format(new Date()));The following is an example −Example Live Demoimport java.text.SimpleDateFormat; import java.text.DateFormat; import java.text.DateFormatSymbols; import java.util.Date; public class Demo {    public static void main(String[] args) {       String[] weekDays1 = { "", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday" };       String[] weekDays2 = { "", "monday", "tuesday", "wednesday", "thursday", ... Read More