enumeration class

1. Automatic box packing and unpacking.The wrapper class in Java.Wrapper classes are wrapping basic data in Java, and you can wrap a base type into a class type.Basic data typesFour categories of eight.1. Integer byte short int long2. Float type

Season SPRING = Season ("SPRING", "SPRING Outing" Season SUMMER = Season ("SUMMER", "SUMMER Fever" Season FALL = Season ("Autumn ", "Season WINTER = Season (" WINTER "," Snow watching ". name =. desc = Season getSeason (1 2 3 4     + ", This is a

The following code is used as an example of alternating lights: Copy Code code as follows: public class Test { public static void Main (string[] args) { TrafficLight light = trafficlight.red; System.out.println (Light.time);

usingSystem;usingSystem.Collections.Generic;usingSystem.Diagnostics;usingSystem.Runtime.InteropServices;usingSystem.Text;usingSystem.Windows;usingSystem.Xml;//Author:andy, 20140521//WPF under Form enumerationnamespaceDrawcanvas { Public

Marshine (Original layout format: http://www.marshine.com) Reversion: 2004/5/28Change Description: ThanksNinputerThe CLs compatibility problem was mentioned. At the same time, the equals rewriting not mentioned in the original version was

JAVA enumeration classI. enumeration is a standard that standardizes the form of parameters, in this way, you do not need to consider the Type mismatch and explicitly Replace the fuzzy conceptual enumeration that the int type parameter may bring. It

Closure (closures) If you have used other languages, you should be familiar with the code block. The closure in SWIFT is similar to the block in C and OC. Indicates the self-contained function code block, which can be passed and used in the code. In

The enumeration type is a new feature of JDK1.5. Obviously, the enum is very much like a special class, in fact the type of the enum declaration definition is one. These classes are subclasses of the Enum class in the class library (java.lang.enum). 

[New Features of Java 5] EnumerationWhat is Enumeration type? If you define a class to complete the employee information of an enterprise, the employee information includes the name, age, and position information (the job has only three roles:

Java enumeration introduction and usage In actual programming, there are often such "datasets", their values are stable in the program, and the elements in the "dataset" are limited. For example, seven data elements from Monday to Sunday constitute

Enum Class (enum), which is the same as the class and interface keywords.An enumeration class is a special class that can have its own member variables, methods, constructors, and can implement one or more interfaces. There can be only one enum

Improving coding efficiency in the special topics of Linq -- Article 3 enumeration classes you need to know:   As we all know, if a class can be enumerated, this class must implement the IEnumerable interface, while all of our linq classes are

Disclaimer: This blog is an original blog. Without consent. No reprint! The original link is http://blog.csdn.net/bettarwang/article/details/27262809.Starting with the enumeration class from Java 5, it is important to note that the class defined by

Reference 55049192This explains why an enumeration class cannot be inherited: it has inherited the parent enum class, and its parent implements the serializable interface, which means that all enum classes implement serializationThe Enum class also

Before the enumeration to give an example, we all know that the published Csdn blog needs to be audited, then the status of the audit there are so many: audit, Audit pass, Audit does not pass (assuming that the current requirements are required to

Saw something, found that the Java enumeration is not very understanding, and then look for a check to remember.Why use enumerations? The enumeration was not jdk1.5 until after 1.5, and Java was not supported for enumeration. Why use enumerations?If

Use and Analysis of Enum and use analysis of Enum Example: package test;public enum ColorEnum { RED, YELLOW, BLUE, GREEN, BLACK,;} Obviously, enum is similar to a special class. In fact, the type defined by enum is a class. These

Package com.btp.t4;/* * I. Enumeration class * 1. How to customize the enumeration class * 2. How to define enum classes with the enum keyword * > Common methods: Values (), ValueOf (String name) * > How to Let the enumeration class implement the

Recently doing Android development, need to use the enumeration value, so that can be assigned continuously, I write as before C + +, as follows: Public enum ColorSelect { = 0, green_bage, blue_bage; }Compile but.I

What is an enumeration? Enumerations are new features introduced by JDK5. In some cases, the objects of a class are fixed and can be defined as enumerations. In practice, enumeration types can also be used as a specification to guarantee the safety