{"id":6606,"date":"2024-04-22T00:11:01","date_gmt":"2024-04-22T07:11:01","guid":{"rendered":"https:\/\/zentut.com\/java-tutorial\/java-enum\/"},"modified":"2024-04-22T00:11:46","modified_gmt":"2024-04-22T07:11:46","slug":"java-enum","status":"publish","type":"page","link":"https:\/\/www.zentut.com\/java-tutorial\/java-enum\/","title":{"rendered":"Java Enum"},"content":{"rendered":"\n

Summary<\/strong>: in this tutorial, you’ll learn about Java enum and how to use it effectively to make your code more readable and concise.<\/p>\n\n\n\n

Introduction to the Java enum type<\/h2>\n\n\n\n

In Java, an enum (short for “enumeration”) is a special type that represents a fixed set of related constant values.<\/p>\n\n\n\n

To declare an enum, you use the enum keyword followed by the enum’s name, and a pair of curly braces contains its constants:<\/p>\n\n\n

enum<\/span> MyEnum {\n   VALUE1, VALUE2,...\n};<\/code><\/span>Code language:<\/span> Java<\/span> (<\/span>java<\/span>)<\/span><\/small><\/pre>\n\n\n
By convention, the enum’s constants are uppercase. The enum<\/code> keyword denotes that it is a special type of class<\/strong> that extends the java.lang.Enum<\/code> class:<\/p>\n\n\n\n
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It means that MyEnum<\/code> inherits all methods of the Enum<\/code> class. We’ll cover some of them shortly. In addition, enums may have methods<\/a> and constructors<\/a> like regular classes.<\/p>\n\n\n\n
For example, the following declares an enum that represents the days of the week:<\/p>\n\n\n
enum<\/span> Day {\n   SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY\n}<\/code><\/span>Code language:<\/span> Java<\/span> (<\/span>java<\/span>)<\/span><\/small><\/pre>\n\n\n
In this example, we declare the Day<\/code> enum that includes seven constants, each representing the day of the week.<\/p>\n\n\n\n
All constants, which you declare in an enum, are instances<\/strong> of the enum class. They are implicitly static<\/code>, public<\/code>, and final<\/code>:<\/p>\n\n\n\n