Java Day Of Week Enum

The equals() Method example in Java. A day-of-week, such as 'Tuesday'. atan2(y, x), which computes the arctangent value of y/x that is in the range from -π to π. C# / C Sharp Forums on Bytes. getValue() ; // 1 = Monday, 7 = Sunday. The Powerful Python page contains links to more articles as well as a list of future articles. I come from Java, which is a strong typed language, but incidentally also did not have enums for a long time. In Java 8, a whole new date and time library was introduced for a number of good reasons. In Java, the enumerated, or enum, type is a very powerful tool. Visual Studio's Intellisense is very nice with Enums because it lists all the options for the programmer to choose from. For example, this enumeration is the type of the property value for the DateTime. Attendees; CalendarContract. enum flag {const1, const2, , constN}; By default, const1 is 0, const2 is 1 and so on. 8 이전에는 날짜 연산이 쉽지 않았다. Guide to What's New in java 8?. Even though enum was not included into Java from the very beginning, it was introduced since version 1. GregorianCalendar is a concrete subclass of Calendar and provides the standard calendar used by most of the world.  For example, it can be used to create a. Set is the ADT of finite sets of elements of some other type E. The enum keyword is used to declare an enumeration. 이 클래스에는 Question (단일) 이라는 열거 형 이 있습니다. By Chaitanya Singh | Filed Under: Java Date In this tutorial, we will see how to display the Day of the week in the date. boolean: isWeekend() Returns true if this day of the week is a weekend day (Saturday or Sunday). Enum was introduced in Java 5 and since then it's been very popular among Java developers and widely used in different Java applications. For example, java. These were only suitable for the most basic tasks. IllegalArgumentException − if the specified enum type has no constant with the specified name, or the specified class object does not represent an enum type. Monday; But there is more with this function Culture is also possible. Now a lot of extra utility classes have been added which work on top of these enums. the DayOfWeek enum cannot accept anything other than the days of the week that were defined. Enum in C# language is a value type with a set of related named constants often referred to as an enumerator list. Java Date Time - DayOfWeek of(int dayOfWeek) example. DayOfWeek enums in Java 8 Date-Time API describes the days of the week. DayOfWeek lunes = DayOfWeek. MONDAY through DayOfWeek. How to get the integer value of day of week The correct way to get the integer value of an Enum such as DayOfWeek as a string is: pass array to method Java;. Set is the ADT of finite sets of elements of some other type E. println(c);. In addition to the textual enum name, each day-of-week has an int value. Introduction. * Non-fixed dates are those that are on a particular day of week and week of. For example, this enumeration is the type of the property value for the DateTime. It inherits Enum and AbstractMap classes. Returns an array containing the constants of this enum type, in the order they are declared. IceWarp Server For Windows (Windows 7/2008/Vista/2003/XP) & Linux Copyright (c) 1999-2011 IceWarp Ltd. Java DayOfWeek class methods. Monday; Java enums are implemented using a parameterized class (ie generic) called Enum; Java enums are objects, not primitive values. 라인이 짧을 때는 상관없지만, 코딩이 100줄 200줄이 되면 알아보기도 힘들뿐더러 오류가 생겼을 때 잡는 것도 여간 쉬운 일이 아니다. Java DayOfWeek explanation with example : DayOfWeek is an enum in Java that represents all seven days of a week. Enum in Java is a keyword, a feature which is used to represent fixed number of well known values in Java, For example Number of days in Week, Number of planets in Solar system etc. Create a JAVA program for a simple scheduler with the following requirements: There will be a DayOfWeek enum where each of the days is included (MONDAY, TUESDAY, etc. Wherever you were expecting a DayOfWeek enum, it would have to be something that represented one of the days. So Java programmers came up with a few different kind of solutions to simulate them. This video is unavailable. Some of the Java enum examples, and how to use it, nothing special, just for self-reference. It implements TemporalAccessor and TemporalAdjuster. Op zijn meest elementaire , hij neemt een structuur die lijkt op de enum type C - gebaseerde talen , maar het is veel krachtiger. Java now includes the java. ToString(String, IFormatProvider) method with either the "ddd" or "dddd" format strings. I use RulePoint version RulePoint-5. Dalam Java, string bukan merupakan array dari karakter. Java enumeration is a class type, enum can have constructors, instance variables, methods. For example, java. Enum was introduced in Java 5 and since then it's been very popular among Java developers and widely used in different Java applications. NET Framework contains an Enum called DayOfWeek. Enums are a very well-known Java language feature. Java DayOfWeek is an enum that represents all seven days of the week. LocalDate class is an immutable class which represents a date without time-zone information, such as 2017-05-15. Net MVC May 24, 2013. C C++ C++14 C# Java Perl PHP Python Python 3 Scala HTML & JS. Copy Reset Shortcuts. This requires a basic understanding of C#. Existe un enum donde se definen todos los días de la semana. It is used to impose compile-time safety. DayOfWeek implements the TemporalAccessor and TemporalAdjuster interfaces so DayOfWeek provides implementation methods for those interface methods. ZipInputStreamから org. Sounds like a good idea @dajester2013. Summary: Ed Wilson, Microsoft Scripting Guy, talks about working with enums in Windows PowerShell 5. It declares a Java class to use in the code below the import statement. Per the ISO 8601 standard, the week is defined as Monday-Sunday, numbered 1-7. The equals() Method example in Java. biweekly is an iCalendar library written in Java. public enum GearType{ AUTO, MANUAL }; 이런 식으로 설정을 해주어야 했다. A day-of-week, such as 'Tuesday'. SimpleDateFormat class. View my complete profile. Monday; Java enums are implemented using a parameterized class (ie generic) called Enum; Java enums are objects, not primitive values. Java DayOfWeek is an enum that represents all seven days of the week. Java DayOfWeek explanation with example : DayOfWeek is an enum in Java that represents all seven days of a week. Looking at the way of request on the tip above the DayOfWeek is also working this way and more. The following program shows how to convert an enum to List in C# as well as VB. It is defined as : public enum DayOfWeek The name of the enum values are Monday,Tuesday, Wednesday, Thursday,Friday, Saturday and Sunday. Dalam Java, string bukan merupakan array dari karakter. The problem with this is that Java enums are always singletons. class); //모든 DayOfWeek Enum의 값을 담고있는 Set을 반환 EnumSet enumSet2 = EnumSet. Enums are a very well-known Java language feature. int dayNumber = DayOfWeek. DateTimeFormat);. enum in Java Enumerations serve the purpose of representing a group of named constants in a programming language. The switch statement executes the case corresponding to the value of the expression. Serializable, which are already implicitly implemented by each enumeration:. * For M use 1 for January, 2 for February, and so forth. Would be more useful as instance methods. DayOfWeek is an enum representing the 7 days of the week - Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. An enum is an "enumerated type", which resembles a class very much. WriteLine. now(), ChronoUnit. Enum was introduced in Java 5 and since then it's been very popular among Java developers and widely used in different Java applications. DayOfWeek enums in Java 8 Date-Time API describes the days of the week. This enumeration ranges from zero, indicating Sunday, to six, indicating Saturday. Any feedback is appreciated. Watch Queue Queue. These were only suitable for the most basic tasks. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML. No, you can't do this in Java. EnumMap keep order of their collection, which is same as the order of enum constants. QSpiders - Enum Java Topic 1. The Enum is the direct superclass of an enum type. And, spring, summer and winter are values of type season. Scribd is the world's largest social reading and publishing site. Tue is thrown as the valueOf method expects the full name of the enum constant; For example TUESDAY. Then, when parsing the month parameter to an integer, remember to subtract 1 since months in Calendar go from 0 to 12. Time is represented to nanosecond precision. Second section is the gate keeper, if it returns true, we run the statements in the loop, if it returns false, we exit the loop. Parse(GetType(DayOfWeek), strDay), DayOfWeek) (The reason we have to say System. values()) System. day of type DayofWeek time of type String o o "Data protection will ensure that the first 1-4 characters are numeric and the last character is either a or p (e. DateTime type has a DayOfWeek property for that purpose. For example, you need a list that contains days of the week. We would do so with the following declaration: enum WeekDays { MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY, SUNDAY;}. Calendar are now legacy, supplanted by java. Syntax: public DayOfWeek getDayOfWeek() Parameter: This method does not accepts any parameter. But if you are moving your application to Java SE 8, its time to consider moving on to java. EnumMap is not synchronized and it has to be synchronized manually before using it in a concurrent or multi-threaded environment. Since can some1 help with my. 【Java】与えられた年月日から直近の営業日を求めるサンプルを作ってみました。 プログラミング言語Javaの基本を中心に復習・学習するブログです。. Learn Online C Programming Language, C++ Programming Language, Java Programming Language, Android Application Development, Linux Operating System, Data Structure with Documentation, Aptitude Questions & Answers, Interview Questions & Answers, MS DOS and Many more…. Pass around objects of this enum rather than mere integers 1-7 to make your code more self-documenting, provide type-safety, and ensure a range of valid values. I know how get the date in a script, but how can I tell whether it’s a Monday or a Tuesday or whatever?. For example, consider the days of the week, they are a set of fixed constants, therefore we can have an enum defined:. It doesn't implement Temporal interface so it's not temporal-based. Bien qu’il ne soit pas visible au premier coup d’œil, il existe une relation entre enums et les classes génériques en Java. In this tutorial we understood how to get day of week for a given date using java. I also include a Java program for reading and writing image BLOB from/to the database, based on this example: "TestImageBLOB. for beginners and professionals. An enum type can have constructors, methods and variables just like a regular Java class. Java's enums are special values and have no integer/number equivalent (unless you define some special conversion method). Straight up Java @Test public void get_day_of_week_java () { Calendar cal = Calendar. Search; List By Company; List By Topic; Legacy; Tests. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. So Java programmers came up with a few different kind of solutions to simulate them. No Java 8, após uma longa história de sofrimento dos desenvolvedores com as classes java. getValue() ; // 1 = Monday, 7 = Sunday. Enum in C# language is a value type with a set of related named constants often referred to as an enumerator list. ComputerName + " This is a system generated email Please contact the MineStar System Administrator";. DayOfWeek implements the TemporalAccessor and TemporalAdjuster interfaces so DayOfWeek provides implementation methods for those interface methods. values()[today] ought to do as well. "The members of the DayOfWeek enumeration are not localized. Enumについて Enum(列挙型)とは、複数の定数をひとつにまとめておくことができる型のことです。 Enumで定義する定数のことを列挙子と呼びます。 C言語でも列挙型は使われ、定義の方法は似ている部分がありますが、Javaの列挙型はクラスですので、フィールド. Java DayOfWeek is an enum that represents all seven days of the week. The sample code above clears the persistence context after every 10,000 persists. DayOfWeek qui définit des constantes pour chacun des sept jours de la semaine. jar You may use this program to compare answers in your test plan. 5 release (released 30th September 2004, codenamed Tiger), a lot of Java programmers are still unaware of several good features that were introduced. 5 and Later. Because I'm working on a transit database, I need a column that lets me store specific combinations of days, like Monday to Friday, or Saturday and Sunday. Hi Vitallis, Wow!! that was something though the method used is very lengthy , considering the number of ENUMs i have in c++ to be used in java, for the time being, i am just passing the index of the enum value which i get form the C++ code and return it to the java app as int. Calendar has the Field: public static final int DAY_OF_WEEK Field Number for Get and Set indicating the day of the week. Now we need to see, if there is no Enum in some situations. Calender Program in C Programming Language : Display Day of the month Calender Program in C Programming Language : Program will accept Year,Month and Date from the user and will display the day of the month. Apr 27, 2016 · java. Enum in Java is a keyword, a feature which is used to represent fixed number of well known values in Java, For example Number of days in Week, Number of planets in Solar system etc. Some of the features I requested, such as enums, are now part of Java. Short answer: No. Now a lot of extra utility classes have been added which work on top of these enums. Attendees; CalendarContract. Below programs illustrate the getDayOfWeek() method of LocalDate in Java:. Use the '*' character to declare all the classes belonging to the package. Using name() method to compare enum to String in Java. 0 in Windows 10. The Enum is the direct superclass of an enum type. , Monday) for a given date (e. Java enum type examples: A simplest enum type declared inside a class: class Foo { enum DayOfWeek {MON, TUE, WED, THU, FRI, SAT, SUN}; } A simple enum type declared in a separate Java file: public enum ErrorCode { LOW, HIGH, SEVERE }. The DayOfWeek property returns a DayOfWeek enum. * This has the numeric value of {@code 1}. pdf), Text File (. DayOfWeek is an enum representing the 7 days of the week - Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. Search; List By Company; List By Topic; Legacy; Tests. Guide to What's New in java 8?. b) Enums are compiled to a. Enum implements Calendrical, CalendricalMatcher. That will work as desired and give you the output - Day of week- TUESDAY. You can have 8 enum classes as well, if you override any methods, which make enums even more quirky. DayOfWeek is an Enum, and Enum has the Parse method. The purpose of enums is to provide a type with a predefined set of allowed values. There are alternatives available as well e. NullPointerException - if the argument is null Parameters: name - the name of the enum constant to be returned. a naming convention. ) There will be an appointment class with three properties: o day of type DayOfWeek o time of type String. When using the get method for Calendar. DayOfWeek dow = DateTime. If you write a lot of Java code, then you should read that. A day-of-week, such as 'Tuesday'. Parse(GetType(DayOfWeek), strDay), DayOfWeek). A new method is needed, therefore out final enum becomes:. WriteLine("The {0}th month of the year is {1}", (int)Months. Would be more useful as instance methods. Enumerations (or Enums, for short) are special classes that contain a set of related constants. In Java the Month is an enum representing the 12 months of the year. How to implement an enum with string values in TypeScript Published 2015-10-08 I currently work an a single-page application (SPA), where we use TypeScript to access web services. For example, consider the days of the week, they are a set of fixed constants, therefore we can have an enum defined:. The C compiler does not prevent assigning values to an enum type that are not in the enumerated list. Java 8 - LocalDate example Posted on May 14, 2017 The java. 优点是您可以免费进行比较(因为在这种情况下,值比较和参考比较是等效的). This method may be used to iterate over the constants as follows: for (TimeInterval c : TimeInterval. values()) System. CREATE TABLE ACTIVE_DAY_OF_WEEK ( ID INT NOT NULL,-ID of USERS table DAY_OF_WEEK INT NOT NULL-treats active days as numbers ); When this day is defined and converted by Enum TypeHandler, the class that converts the code of DAY_OF_WEEK to Enum is made as follows, like my Qiita article. For example, the value "2nd October 2007 at 13:45. Next by calling DayOfWeek. Java Date Time - DayOfWeek of(int dayOfWeek) example. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Serializable, which are already implicitly implemented by each enumeration:. The "with" methods return a new instance based on the target instance modified by the value passed to the "with" method. The purpose of enums is to provide a type with a predefined set of allowed values. hint: It means you cannot assign an instance of different Enum type to an Enum variable. Learn the difference and when. public enum DayOfWeek {/*. It makes the code much simpler: public enum Day {. currentMonth(). I thought I'd share this bit of code with you. To follow along fully you'll need to be fairly knowledgeable (or at least curious) about how programming languages are designed and implemented. persistence. */ MONDAY, /** * The singleton instance for the day-of-week of Tuesday. Net , MVC , Templating , Uncategorized Asp. This enumeration is based on the DayOfWeek class (available on SDK 26 or higher). Another selection statement if-else-if ladder in Java also executes one of the code block based on the evaluation of the condition, switch-case in Java provides an easier and more readable alternative to do the same rather than using a large if-else-if ladder. To overcome all this we use enum construct in java and we will learn this construct with the simplest example by implementing Days of the Week Enums. A day-of-week, such as 'Tuesday'. My first objective in the program is to display a list of the days,. A day-of-week, such as 'Tuesday'. Enum implements Calendrical, CalendricalMatcher. 今回はenumの使い方、enumの列挙子を文字列で取得する方法についてわかりやすく解説します! enumとは enumキーワードは、列挙型を宣言するために使います。列挙型とは、名前の付いた定数の集まりです。列挙型で定義される定数は列挙子リストと呼ばれます。. Month or MonthOfYear? - participate in the naming of the New Date and Time (JSR-310)! The New Date And Time targeted for JDK 1. for beginners and professionals. LocalDate getDayOfWeek() gets the day-of-week field, which is an enum DayOfWeek. ) However, the scheduling framework has more flexibility than cron. What are Enumerations. Because JSR 310 objects are immutable, they provide "with" methods rather than "set" methods. This method may be used to iterate over the constants as follows: for (Hours. Enumeration in Java (or enum) is a special type in Java whose fields consist of constants. You can change default values of enum elements during declaration (if necessary). The DayOfWeek enum consists of seven constants that describe the days of the week: MONDAY through SUNDAY. ComputerName + " This is a system generated email Please contact the MineStar System Administrator";. This is the first time I've ever done enumeration and I want to make sure I am doing it in the way that a professional Java dev would do it. Dalam Java string bersifat immutable, yang berarti sekali kita membuat objek string, maka string yang berada dalam objek tersebut tidak dapat diubah lagi. With the move towards more readable code and OOP, it seems silly to declare variables with the enu. Java DayOfWeek enum In Java the DayOfWeek is an enum representing the 7 days of the week. Hi Vitallis, Wow!! that was something though the method used is very lengthy , considering the number of ENUMs i have in c++ to be used in java, for the time being, i am just passing the index of the enum value which i get form the C++ code and return it to the java app as int. Constants, often i. The DayOfWeek property, and the DayOfWeek enum type, can be used for this purpose. For example, day of week can only be Monday, Tuesday, Wednesday, Thursday, Friday, Saturday or Sunday. Now a lot of extra utility classes have been added which work on top of these enums. How to use. GregorianCalendar is a concrete subclass of Calendar and provides the standard calendar used by most of the world. DayOfWeek properties. We can get day name by numeric value and can get numeric value by DAY also. Under the hood, one can see what it's doing is converting the given date to an `EpochDay`, taking the `floorMod` of that by 7, and then returning the index of the DayOfWeek enum. Quel est le but de la classe Enum qui a été introduit dans Java 5? Mes suggestions: 1) soit enum s existent seulement avant la compilation (comme les génériques, mais je n'ai jamais rien entendu à ce sujet alors qu'il est écrit partout que les génériques sont en train de s'effacer après la compilation). Returns true if the DayOfWeek is a weekday. A day-of-week, such as 'Tuesday'. Your code will work until Microsoft will decide to change the DayOfWeek day names Listen to the news, you might be. They represent a playing card and a deck of cards. Da Java Tutorial:. Using the defined constants (Month. (8) switch文を使用し、DAY_OF_WEEKフィールドで返される値と、各曜日のフィールドの値を比較し合致する曜日をStringBuffer変数dowに代入します。appendメソッドは引数に指定された文字列をStringBuffer変数に追記するメソッドです。. A day-of-week, such as 'Tuesday'. DayOfWeek lunes = DayOfWeek. toString(). In C programming, an enumeration type (also called enum) is a data type that consists of integral constants. In switch case,The execution goes to next statement after all switch cases if any switch case is broken. Now we need to see, if there is no Enum in some situations. Java enumeration is a class type, enum can have constructors, instance variables, methods. Solution Use LocalDate, LocalDateTime, or ZonedDateTime(Java 8) Several notes on the code snippet below: you need to set the Date to Calendar by calling setTime() method months are 0 based. Enum ExampleA program that demonstrates enum in C# is given as follows:Source Code: Program that demonstrates enum in C#using System; namespace EnumDemo { class Example { enum Months { January = 1, February, March, April, May, June, July, August, September, October, November, December }; static void Main(string[] args) { Console. Java enum FAQ: Can you share a Java enum toString example?. As we would expect, the Month enum type represents the months from JANUARY to DECEMBER, and the DayOfWeek enum type represents the days of the week from MONDAY to SUNDAY. Java入門の基礎知識からコード確認、索引、目的別検索までWebエンジニアの為Javaコード辞典。. Set is the ADT of finite sets of elements of some other type E. name() -- returns the enum constant with the given name. Enum constants are implicitly static and final and you can not change their value once created. DayOfWeek enum into a bitfield enum. NullPointerException − if enumType or name is null. In most cases it is best to define an enum directly within a namespace so that all classes in the namespace can access it with equal convenience. "The members of the DayOfWeek enumeration are not localized. Java switch case statement with 4 examples and code. Create a dropdown list from an Enum in Asp. To define enums, the enum keyword is used. SystemInformation. String name) Throws: java. The sample code above clears the persistence context after every 10,000 persists. We would do so with the following declaration: enum WeekDays { MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY, SUNDAY;}. Therefore, holding 1,000,000 managed Point instances in the persistence context might consume too much memory. As an example, if you were to specify “15W” as the value for the day-of-month field, the meaning is: “the nearest weekday to the 15th of the month”. tuesday, and so on) have no underlying data type. In this article, we will discuss important methods or APIs of the Java DayOfWeek enum from the java. It is a keyword, a feature which is used to represent fixed number of well-known values in Java, For example, Number of days in Week. Java Month Enum. This may seem academic or pedantic, but it is actually why a lot of the other reasons on this list can be problems! 2. Enums et classe générique. Java enum type examples: A simplest enum type declared inside a class: class Foo { enum DayOfWeek {MON, TUE, WED, THU, FRI, SAT, SUN}; } A simple enum type declared in a separate Java file: public enum ErrorCode { LOW, HIGH, SEVERE }. get (Calendar. Since Enum in Java is much more versatile than Enum in C or C++, it also presents lots of interesting use cases, couple of them, we have seen in my article 10 ways to use Enum in Java. String name) Throws: java. IllegalArgumentException: No enum const class DayOfWeek. Get latest updates and posts on Java from Buggybread. This tech-recipe provides a detailed example and walks through an explanation of the looping process. Net , Enum , MVC , Resources , Resx , Templating paulthecyclist A common situation you can find in MVC, is to have an Enum in your model and want that rendered as a dropdown list in the browser. Then, when parsing the month parameter to an integer, remember to subtract 1 since months in Calendar go from 0 to 12. The month enum can be used to create LocalDate and is returned by. Returns true if the DayOfWeek is a weekday. This video is unavailable. Java DayOfWeek Enum The DayOfWeek is an immutable and thread-safe enum that represents 7 days of the week – Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. And, if you're looking for a more detailed article on the new date-time library, have a look here. Java Date Time - DayOfWeek of(int dayOfWeek) example. LocalDate getDayOfWeek() gets the day-of-week field, which is an enum DayOfWeek. For example the 4 suits in a deck of playing cards may be 4 enumerators named Club, Diamond, Heart, and Spade, belonging to an enumerated type named Suit. Quel est le but de la classe Enum qui a été introduit dans Java 5? Mes suggestions: 1) soit enum s existent seulement avant la compilation (comme les génériques, mais je n'ai jamais rien entendu à ce sujet alors qu'il est écrit partout que les génériques sont en train de s'effacer après la compilation). Apr 27, 2016 · java. « Shared API for package java. Java 8 code tip shows how to get localized day of week and month for a date(LocalDate/LocalDateTime) in French and Spanish using java. Calendar has the Field: public static final int DAY_OF_WEEK Field Number for Get and Set indicating the day of the week. values()) System. The month enum can be used to create LocalDate and is returned by. These enums also have their integer values where 1 is equal to MONDAY and 7 is equal to SUNDAY. We walk through implementing a program (in Java + Eclipse) that calculates the day of the week (e. Note Consider the Enum type if your program consists of a fixed set of constants, like seasons of the year, operations calculator, user status and etc. Enumerations (or Enums, for short) are special classes that contain a set of related constants. DayOfWeek is an enum representing the 7 days of the week - Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. 11831-FINAL with JBoss 5. time package. An enum type can have constructors, methods and variables just like a regular Java class. It can be used for days of the week (SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY and SATURDAY) , directions (NORTH, SOUTH, EAST and WEST) etc. DayOfWeek enum. An alternative syntax is day = CType([Enum]. Scribd is the world's largest social reading and publishing site. Java Enum Tutorial With Example | Enumeration Class in Java is today's topic. Usually you define 7 constants, to represent 7 days in the week. 123456789" can be stored in a LocalDateTime. using the following I can get it to output the Day as "Thursday" but not sure how to get it to output to the Number can someone point me in the right direction. Because negative values count backward they will usually be aligned differently within the month than positive values. Enumeration in Java (or enum) is a special type in Java whose fields consist of constants. ENGLISH) this actually returns You string with name of the month in English that You desire 🙂 works for me (change from my language to English). A new method is needed, therefore out final enum becomes:. Given below is a list of more Java 8 Date-Time tutorials for your reference. Since Enums can be any integral type (short, byte, int, etc. So Java programmers came up with a few different kind of solutions to simulate them. How to find date difference in C# A date and time format string defines the text representation of a DateTime value that results from a formatting operation. DayOfWeek day has a numeric value too. DayOfWeek enum into a bitfield enum.