To display weekday names in Java, use the getWeekdays() method.For that, firstly import the following package.import java.text.DateFormatSymbols;Now, create a string array and get all the weekday names using the getWeekdays() method.String[] weekDays = new DateFormatSymbols().getWeekdays();Example Live Demoimport java.text.DateFormatSymbols; public class Demo {    public static void main(String[] args) {       String[] weekDays = new DateFormatSymbols().getWeekdays();       System.out.println("Weekday names...");       for(String days: weekDays){       System.out.println(days);    } } }OutputWeekday names... Sunday Monday Tuesday Wednesday Thursday Friday Saturday

To work with the GregorianCalendar class, import the following package −import java.util.GregorianCalendar;To get the day of week in month, use the following field −cal.get(Calendar.DAY_OF_WEEK_IN_MONTH)Above, cal is the GregorianCalendar object we created before −GregorianCalendar cal = new GregorianCalendar();The following is an example −Example Live Demoimport java.util.GregorianCalendar; import java.util.Calendar; import java.util.Date; public class Demo {    public static void main(String[] args) {       GregorianCalendar cal = new GregorianCalendar();       // date information       System.out.println("Date Information..........");       System.out.println("Year = " + cal.get(Calendar.YEAR));       System.out.println("Month = " + (cal.get(Calendar.MONTH) + 1));       System.out.println("Date ... Read More

For GregorianCalendar class, import the following package.import java.util.GregorianCalendar;Create an object.GregorianCalendar cal = (GregorianCalendar) GregorianCalendar.getInstance();Now, use the following field and add() method with a negative one (-1) to display the previous day.cal.add((GregorianCalendar.DATE), -1)Example Live Demoimport java.util.Calendar; import java.util.GregorianCalendar; public class Demo {    public static void main(String[] a) {       GregorianCalendar cal = (GregorianCalendar) GregorianCalendar.getInstance();       System.out.println("Current date: " + cal.getTime());       // past date       cal.add((GregorianCalendar.DATE), -1);       System.out.println("Modified date (Previous Day): " + cal.getTime());    } }OutputCurrent date: Mon Nov 19 18:12:53 UTC 2018 Modified date (Previous Day): Sun Nov ... Read More

The GregorianCalendar class in Java allows us to manipulate dates and times easily. In this example, we will create a GregorianCalendar object and use it to display the current date and the date of the previous month. Problem Statement Write a Java program and create a GregorianCalendar object, display the current date, and then modify this date to show the date of the previous month. Output Current date: Mon Nov 19 18:07:03 UTC 2018 Input Modified date (Previous Month): Fri Oct 19 18:07:03 UTC 2018 Steps to display previous month from GregorianCalendar Below are the steps to display previous ... Read More

To set a Date object to noon to the closest possible millisecond of the day, we will make sure that the hour is set to noon, and both the minutes, seconds, and milliseconds are set to zero. This precise setting can be achieved using the Calendar class in Java. By setting these specific fields, we can ensure that the time is 12:00:00.000 PM, providing the closest possible millisecond representation of noon. Returning a date set to noon to the closest possible millisecond of the day in Java is quite easy. Let's learn the following ways: ... Read More

To convert String to Float Object, you can use a method Float.valueOf() method or you can even achieve this without using the in-built method.Let us see both the examples.The following is an example that converts String to Float Object using Float.valueOf() method.Example Live Demopublic class Demo {    public static void main(String args[]) {       Float f = Float.valueOf("30.67");       System.out.println(f);    } }Output30.67Let us see another example.Example Live Demopublic class Demo {    public static void main(String args[]) {       Float f = new Float("45.88");       System.out.println(f);    } }Output45.88

The Float wrapper class provides methods to convert a Float object into various numeric primitive data types like short, int, float, and double in Java. This is particularly useful when handling float values and representing them in different numeric forms.This article will show two approaches to convert a Float object to numeric primitive types using the Float class methods. Using Float Wrapper Class Methods In this approach, we use predefined methods of the Float class, such as shortValue(), intValue(), floatValue(), and doubleValue(), to convert a Float object into various primitive types. These methods directly perform the required conversions. ... Read More

The Float.valueOf() method is used in Java to convert string to float.The following are our string values.String str1 = "100.5"; String str2 = "200.5";To convert the string value to float, try the method valueOf()float val1 = (Float.valueOf(str1)).floatValue(); float val2 = (Float.valueOf(str2)).floatValue();The following is the complete example with output.Example Live Demopublic class Demo {    public static void main(String args[]) throws Exception {       String str1 = "100.5";       String str2 = "200.5";       float val1 = (Float.valueOf(str1)).floatValue();       float val2 = (Float.valueOf(str2)).floatValue();       System.out.println("Multiplication = " + (val1 * val2));    } }OutputMultiplication = 20150.25

To display the month number, use the SimpleDateFormat(“M”)// displaying month number Format f = new SimpleDateFormat("M"); String strMonth = f.format(new Date()); System.out.println("Month Number = "+strMonth);Since, we have used the Format and SimpleDateFormat class above, therefore import the following packages. With that, we have also used the Date.import java.text.Format; import java.text.SimpleDateFormat; import java.util.Date;Example Live Demoimport java.text.Format; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Calendar; public class Demo {    public static void main(String[] args) throws Exception {       // displaying current date and time       Calendar cal = Calendar.getInstance();       SimpleDateFormat simpleformat = new SimpleDateFormat("dd/MMMM/yyyy hh:mm:s");     ... Read More

Let us see how we can format date with SimpleDateFormat('MM/dd/yy')// displaying date Format f = new SimpleDateFormat("MM/dd/yy"); String strDate = f.format(new Date()); System.out.println("Current Date = "+strDate);Since, we have used the Format and SimpleDateFormat class above, therefore import the following packages. With that, we have also used the Date.import java.text.Format; import java.text.SimpleDateFormat; import java.util.Date;Example Live Demoimport java.text.Format; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Calendar; public class Demo {    public static void main(String[] args) throws Exception {       // displaying current date and time       Calendar cal = Calendar.getInstance();       SimpleDateFormat simpleformat = new SimpleDateFormat("dd/MMMM/yyyy hh:mm:s");   ... Read More