Found 9326 Articles for Object Oriented Programming

Import the following package for to work with Calendar class in Java, import java.util.Calendar;Create a calendar class now.Calendar cal = Calendar.getInstance();To display entire time information, use the following fields.cal.get(Calendar.HOUR_OF_DAY) cal.get(Calendar.HOUR) cal.get(Calendar.MINUTE) cal.get(Calendar.SECOND) cal.get(Calendar.MILLISECOND)The following is the final example.Example Live Demoimport java.util.Calendar; public class Demo {    public static void main(String[] args) {       Calendar cal = Calendar.getInstance();       // current date and time       System.out.println(cal.getTime().toString());       // time information       System.out.println("Hour (24 hour format) : " + cal.get(Calendar.HOUR_OF_DAY));       System.out.println("Hour (12 hour format) : " + cal.get(Calendar.HOUR));     ... Read More

For using Calendar class, import the following package.import java.util.Calendar;Using the Calendar class, create an object.Calendar calendar = Calendar.getInstance();Now, create a string array of the month names.String[] month = new String[] {"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" };Display the month name.month[calendar.get(Calendar.MONTH)]The following is an example.Example Live Demoimport java.util.Calendar; public class Demo {    public static void main(String[] args) {       Calendar calendar = Calendar.getInstance();       String[] month = new String[] {"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" };       System.out.println("Current Month = " + month[calendar.get(Calendar.MONTH)]); ... Read More

For using Calendar class, import the following package.import java.util.Calendar;Using the Calendar class, create an object.Calendar calendar = Calendar.getInstance();Now, create a string array of the day names.String[] days = new String[] { "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" };Display the day name.days[calendar.get(Calendar.DAY_OF_WEEK) - 1]The following is the final example.Example Live Demoimport java.util.Calendar; public class Demo {    public static void main(String[] args) {       Calendar calendar = Calendar.getInstance();       System.out.println("Day: " + (calendar.get(Calendar.DATE)));       System.out.println("Month: " + (calendar.get(Calendar.MONTH) + 1));       System.out.println("Year: " + (calendar.get(Calendar.YEAR)));       String[] days = new String[] ... Read More

To get the day of the week, use Calendar.DAY_OF_WEEK.Firstly, declare a calendar object and get the current date and time.Calendar calendar = Calendar.getInstance(); System.out.println(calendar.getTime().toString());Now, fetch the day of the week in an integer variable.int day = calendar.get(Calendar.DAY_OF_WEEK);The following is the final example.Example Live Demoimport java.util.Calendar; public class Demo {    public static void main(String[] args) {       Calendar calendar = Calendar.getInstance();       System.out.println(calendar.getTime().toString());       int day = calendar.get(Calendar.DAY_OF_WEEK);       System.out.println("Day: " + day);       int hour = calendar.get(Calendar.HOUR_OF_DAY);       System.out.println("Hour: " + hour);       int minute = ... Read More

To display the current time in another time zone, use the TimeZone class. To use it, import the following package.import java.util.TimeZone;Firstly, set the TimeZone.cal.setTimeZone(TimeZone.getTimeZone("Europe/Sofia"));Now, display the date using the Calendar object.cal.get(Calendar.HOUR_OF_DAY) cal.get(Calendar.MINUTE) cal.get(Calendar.SECOND) cal.get(Calendar.MILLISECOND)The following is the final example.Example Live Demoimport java.util.Calendar; import java.util.TimeZone; public class Demo {    public static void main(String[] args) {       Calendar cal = Calendar.getInstance();       System.out.println("Europe/Sofia TimeZone...");       cal.setTimeZone(TimeZone.getTimeZone("Europe/Sofia"));       System.out.println("Hour = " + cal.get(Calendar.HOUR_OF_DAY));       System.out.println("Minute = " + cal.get(Calendar.MINUTE));       System.out.println("Second = " + cal.get(Calendar.SECOND));       System.out.println("Millisecond = " ... Read More

For using Calendar class, import the following package.import java.util.Calendar;Now, let us create an object of Calendar class.Calendar calendar = Calendar.getInstance();Set the date, month and year.calendar.set(Calendar.YEAR, 2018); calendar.set(Calendar.MONTH, 11); calendar.set(Calendar.DATE, 18);Create a Date object using Calendar class.java.util.Date dt = calendar.getTime();The following is an example.Example Live Demoimport java.util.Calendar; public class Demo {    public static void main(String[] args) {       Calendar calendar = Calendar.getInstance();       // Set year, month and date       calendar.set(Calendar.YEAR, 2018);       calendar.set(Calendar.MONTH, 11);       calendar.set(Calendar.DATE, 18);       // util date object       java.util.Date dt = ... Read More

To get the day of the week, use the Calendar.DAY_OF_WEEK.Firstly, let us get the current date.java.util.Date utilDate = new java.util.Date(); java.sql.Date dt = new java.sql.Date(utilDate.getTime());Now, using GregorianCalendar, set the time.java.util.GregorianCalendar cal = new java.util.GregorianCalendar(); cal.setTime(dt);The last step would display the day of the week as shown in the following example.Example Live Demoimport java.text.ParseException; public class Demo {    public static void main(String[] args) throws ParseException {       java.util.Date utilDate = new java.util.Date();       java.sql.Date dt = new java.sql.Date(utilDate.getTime());       System.out.println("Today's date: "+dt);       java.util.GregorianCalendar cal = new java.util.GregorianCalendar();       cal.setTime(dt);   ... Read More

Import the following package to work with Date class.import java.util.Date;No create a Date object.Date d = new Date();Let us convert the current date to milliseconds.d.getTime()The following is an example.Example Live Demoimport java.util.Date; public class Demo {    public static void main(String[] args) {       Date d = new Date();       System.out.println("Date = " + d);       System.out.println("Milliseconds since January 1, 1970, 00:00:00 GMT = " + d.getTime());    } }OutputDate = Mon Nov 19 06:30:11 UTC 2018 Milliseconds since January 1, 1970, 00:00:00 GMT = 1542609011369

Firstly, create a Calendar class object.Calendar calendar = Calendar.getInstance();Now, import the following package.import java.sql.Date;Using a Date class now and creating an object would belong to the above package. Convert the current time to the java.sql.Date Object.Date sqlDate = new Date((calendar.getTime()).getTime());The following is an example.Example Live Demoimport java.util.Calendar; import java.sql.Date; import java.text.ParseException; public class Demo {    public static void main(String[] args) throws ParseException {       Calendar calendar = Calendar.getInstance();       // object       Date sqlDate = new Date((calendar.getTime()).getTime());       System.out.println(sqlDate);    } }Output2018-11-19Read More

First, let us create a java.util.Date object.// util object java.util.Date utilObj = new java.util.Date();Now, create a java.sql.Date object.java.sql.Date sqlObj = new java.sql.Date();Converting from a java.util.Date object to a java.sql.Date object.java.sql.Date sqlObj = new java.sql.Date(utilObj.getTime());The following is an example.Example Live Demoimport java.util.Date; public class Example {    public static void main(String args[]) {       // util object       java.util.Date utilObj = new java.util.Date();       // sql object       java.sql.Date sqlObj = new java.sql.Date(utilObj.getTime());       System.out.println("Util Date = " + utilObj);       System.out.println("SQL Date = " + sqlObj);    } }OutputUtil ... Read More