To list weekday names, use the getWeekdays () from the DateFormatSymbols class in Java.DateFormatSymbols is a class for encapsulating localizable date-time formatting data.Get weekday month names in an array −String[] days = new DateFormatSymbols().getWeekdays ();Display the weekdays −for (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().getWeekdays();       for (int i = 0; i < days.length; i++) {          String weekday ... Read More

The bits of an integer number can be reversed to obtain another number. An example of this is given as follows −Number = 11 Binary representation = 1011 Reversed binary representation = 1101 Reversed number = 13A program that demonstrates this is given as follows −Example Live Demopublic class Example {    public static void main(String[] args) {       int num = 14;       int n = num;       int rev = 0;       while (num > 0) {          rev = 1;       }       ... Read More

The length of the longest consecutive 1’s in the binary representation of a given integer involves the length of the longest series of 1’s that occur together. An example of this is given as follows −Number = 13 Binary representation = 1101The length of the longest consecutive 1’s in binary representation of 13 = 2A program that demonstrates this is given as follows −Example Live Demopublic class Example {    public static void main(String strings[]) {       int num = 55;       int n = num;       int count = 0;       while (num!=0) {          num = (num & (num

Use the ‘d’ date conversion character to display two-digit day of the month, for example, 27, 28, 20, etc.System.out.printf("Two-digit day of the month: %td", d);Above, d is a date object −Date d = new Date();The following is an example −Example Live Demoimport java.util.Date; import java.text.DateFormat; import java.text.SimpleDateFormat; public class Demo {    public static void main(String[] args) throws Exception {       Date d = new Date();       DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss a");       String format = dateFormat.format(d);       System.out.println("Current date and time = " + format);       System.out.printf("Four-digit Year ... Read More

Use the ‘m’ date conversion character to display two-digit month.System.out.printf("Two-digit month: %tm", d);Above, d is a date object −Date d = new Date();The following is an example −Example Live Demoimport java.util.Date; import java.text.DateFormat; import java.text.SimpleDateFormat; public class Demo {    public static void main(String[] args) throws Exception {       Date d = new Date();       DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss a");       String format = dateFormat.format(d);       System.out.println("Current date and time = " + format);       System.out.printf("Four-digit Year = %TY", d);       System.out.printf("Two-digit Year = %ty", d);   ... Read More

Use the ‘j’ date conversion character to display three-digit day of the year.System.out.printf("Three-digit Day of the Year: %tj/%Tj", d, d);Above, d is a date object −Date d = new Date();The following is an example −Example Live Demoimport java.util.Date; import java.text.DateFormat; import java.text.SimpleDateFormat; public class Demo {    public static void main(String[] args) throws Exception {       Date d = new Date();       DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss a");       String format = dateFormat.format(d);       System.out.println("Current date and time = " + format);       System.out.printf("Four-digit Year = %TY", d);     ... Read More

Use the ‘y’ date conversion character to display two-digit year.System.out.printf("Two-digit Year = %TY", d);Above, d is a date object −Date d = new Date();The following is an example −Example Live Demoimport java.util.Date; import java.text.DateFormat; import java.text.SimpleDateFormat; public class Demo {    public static void main(String[] args) throws Exception {       Date d = new Date();       DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss a");       String format = dateFormat.format(d);       System.out.println("Current date and time = " + format);       System.out.printf("Four-digit Year = %TY", d);       System.out.printf("Two-digit Year = %ty", d); ... Read More

Use the ‘Y’ date conversion character to display four-digit year.System.out.printf("Four-digit Year = %TY",d);Above, d is a date object −Date d = new Date();The following is an example −Example Live Demoimport java.util.Date; import java.text.DateFormat; import java.text.SimpleDateFormat; public class Demo {    public static void main(String[] args) throws Exception {       Date d = new Date();       DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss a");       String format = dateFormat.format(d);       System.out.println("Current date and time = " + format);       System.out.printf("Four-digit Year = %TY",d);    } }OutputCurrent date and time = 26/11/2018 11:56:26 AM Four-digit Year = 2018

Use the ‘C’ date conversion character to display two digits of year −System.out.printf("Two-digit Year (Century Name) = %tC/%TC", d, d);Above, d is a date object −Date d = new Date();The following is an example −Example Live Demoimport java.util.Date; import java.text.DateFormat; import java.text.SimpleDateFormat; public class Demo {    public static void main(String[] args) throws Exception {       Date d = new Date();       DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss a");       String format = dateFormat.format(d);       System.out.println("Current date and time = " + format);       System.out.printf("Localized day name = %tA/%TA", d, d); ... Read More

Use the ‘a’ date conversion character to display short day-in-week.System.out.printf("Localized short day name = %ta/%Ta", d, d);Above, d is a date object −Date d = new Date();The following is an example −Example Live Demoimport java.util.Date; import java.text.DateFormat; import java.text.SimpleDateFormat; public class Demo { public static void main(String[] args) throws Exception { Date d = new Date(); DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss a"); String format = dateFormat.format(d); System.out.println("Current date and time = " + ... Read More