what enum

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.An enum provides a base class for an enumeration whose underlying type can be any integral type except Char. If you do not explicitly declare

An enumerated constant is a value of the enumerated type, that is, an enumerated value. The enumeration type is User The type defined. It can only be used after being defined in a program. You usually use the enumerated type to define a group

1. About Java Enum: Anyone who has studied C/C ++ or other languages should have a slight knowledge of the Enum type. Enum is generally used to represent a group of constants of the same type. Such as gender, date, month, and color. The benefit of

An enum, called enumeration, is a new feature introduced in JDK 1.5 and is housed in a Java.lang package.An enum is a keyword that feels like it is tied to class, interface, and cannot be used with final,abstract because it defaults to the final

How to use enumeration types: Enum is a custom type of C language An enum value is an integer value that can be customized as needed The value of the first enum defaults to 0 By default, the enum value is based on the previous

Today in the execution of the development of the work order, the source batch import execution time found a lot of warning prompts truncate for column xxxxx. After the import is complete, after you use the Select query, you find that large amounts

The use of enum enumeration in C ++ programming language is hard to grasp. Today, we have provided four simple code examples to help you understand the specific meaning and application methods of the C ++ enum enumeration, so as to facilitate your

In practice, Enum is rarely used and is easily ignored. In fact, Enum is of the same user-defined type as struct and class. Since it is a custom type, you can have its data members and member functions! For example:Enum E {A = 1, B = 2, c = 4 };So:00

3.7 Enum TypesIn addition to the numerical data and text data we introduced before, in the real world, often encounter such a kind of data: a single choice of answer can only be a, B, C, D four one of the options; the color of the traffic lights can

An enum provides a base class for an enumeration whose underlying type can be any integral type except Char. If you do not explicitly declare an underlying type, use Int32. Programming languages typically provide syntax to declare enumerations that

In the Android API you can find a lot of places that use integer sets as parameters, and look at the examples first. LinearLayout is a familiar UI basic element that has a directional attribute in it, which can be set in the following ways:

There is a keyword in C that is enum, enum type, do not know people usually use it, but the enum keyword in some cases is very important, the following is the use of the enum keyword several situations.一、一次 defines multiple constants.For example,

Features of Enum in Java 5:1. Enum is a class;2. Enum is final and cannot be inherited, and the value cannot be overwritten;3. You can use "=" and "equals ()" to compare enum;Enum before Java 5: 1 Package Com. Kay. java5.test1; 2 3

1.enum keywordsThe enum keyword in the C language is used to define enum types(1)enum is a custom type in C language(2) anenum value is an integer value that can be customized as needed(3) The first defined enum value defaults to 0(4) by default,

#出处: http://www.cnblogs.com/codingmylife/archive/2013/05/31/3110656.html"""From the C language came to use Python, very hard to adapt to write code do not play curly braces, suddenly one day found it incredibly wood has enumerated ... So

C # enum,int,string conversion [goto]C # enum,int,string The reciprocal conversion enum provides a base class for enumerations whose underlying type can be any integral type except Char. If you do not explicitly declare an underlying type, use Int32.

Recently read the source code of the Hadoop#yarn section. Read to the state machine that part of the time, feel the use of ENMU is too flexible, in the concurrent programming network to translate an article, just met an article. Quickly translate

Enum is a kind of structure that everyone prefers to use. It helps to provide clear logic and a bit of skill can make it more useful. Enum em { A = 0, B, C, none = 0 xffffffff }    This is often seen in the pastCodeI don't know how to

I. Appearance of the background:Before JDK1.5, we defined constants as this: public static final String red = "red";With the addition of enumeration types in JDK1.5, we are able to group related constants into an enumeration class:public enum Color {

Turn from: C # enum,int,string conversion to each otherC # enum,int,string The reciprocal conversion enum provides a base class for enumerations whose underlying type can be any integral type except Char. If you do not explicitly declare an