// A Java program to demonstrate working on enum // in switch case (Filename Test. Java) import java.util.Scanner; // An Enum class enum Day { SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY; } // Driver class that contains an object of "day" and // main(). public...
We can change the int constants value inThreadStatesConstantclass but the above program will not throw any exception. Our program might not work as expected but if we change the enum constants, we will get compile time error that removes any possibility of runtime issues. Java Enum Methods No...
Enumeration (enum) was not originally available in Java though it was available in other language like C and C++ but eventually Java realized and added to version 5 of Java were the safe type enumerations (Type Safe Enums), which allows you to create enums in Java, just as they exist ...
JDK1.5 之前没有 Enum 这个类型,那时候一般用接口常量来替代。有了 JavaEnum 之后,可以更贴近的表示这种常量。 2. 如何使用 Java Enum 简单的用法: JavaEnum 简单的用法一般用于代表一组常用常量,可用来代表一类相同类型的常量值。如: 性别: publicenumSexEnum{ male,female; } 颜色: publicenumColor { RED,BL...
toStringin classObject Returns: the name of this enum constant hashCode public final int hashCode() Returns a hash code for this enum constant. Overrides: hashCodein classObject Returns: a hash code for this enum constant. See Also: Object.equals(java.lang.Object),System.identityHashCode(java....
Typesafe enums offer a better alternative to Java's traditional enumerated types. Here's how to use typesafe enums correctly in your Java code. Credit: Yarkovoy/Shutterstock This article introduces you to the difference between enumerated types and typesafe enums. You will learn how to ...
In this program, we will create a vehicle enumeration using enum inside the class Main. Then we will access the enum constant inside the main() method and print it.Java program to create an enum inside the classThe source code to create an enum inside the class is given below. The ...
JavaJava Enum Video Player is loading. Current Time0:00 / Duration-:- Loaded:0% Dieses Tutorial zeigt, wie Sie Enum in Java in Int konvertieren. Konvertieren Sie Enum in Int in Java Java bietet keine integrierte Funktionalität zum Konvertieren von enum in int oder umgekehrt, aber wir ...
Need to convert an integer to an enum in Java? The bad news is that it is not as easy as itshouldbe, but the good news is that it is still easy! Consider the enum below. publicenumPageType { ABOUT(1), CODING(2), DATABASES(3);privateintvalue;privatestaticMapmap =newHashMap<>()...
In the above program, we have created an enum type Size. We then declared a variable pizzaSize of the Size type. Here, the variable pizzaSize can only be assigned with 4 values (SMALL, MEDIUM, LARGE, EXTRALARGE). Notice the statement, Test t1 = new Test(Size.MEDIUM); It will call ...