In Java (from 1.5), enums are represented usingenumdata type. Java enums are more powerful thanC/C++ enums. In Java, we can also add variables, methods, and constructors to it. The main objective of enum is to define our own data types(Enumerated Data Types). Declaration of enum in...
* in its enum declaration, where the initial constant is assigned * an ordinal of zero). * * Most programmers will have no use for this method. It is * designed for use by sophisticated enum-based data structures, such * as {@link java.util.EnumSet} and {@link java.util.EnumMap}. ...
publicabstractclassEnum<EextendsEnum<E>>implementsComparable<E>, Serializable {/*** The name of this enum constant, as declared in the enum declaration. * Most programmers should use the {@link#toString} method rather than * accessing this field.*/privatefinalString name; ... } enum 定义的...
其次,MyFirstEnum居然继承了一个类,java.lang.Enum,o my god,以前完全没听说过这个类啊,让我们看下这个类里有什么东西。 /** * The name of this enum constant, as declared in the enum declaration. * Most programmers should use the {@link #toString} method rather than * accessing this field....
* Returns the name of this enum constant, as contained in the * declaration. This method may be overridden... */ public String toString() { return name; } 从源码注释上看,两个方法都是返回'this enum constant,但是name()方法是final而toString()是public,显然final是不可被重写的。针对TurnOnOff...
* @see java.util.EnumMap * @since 1.5 */ public abstract class Enum<E extends Enum<E>> implements Comparable<E>, Serializable { /** * The name of this enum constant, as declared in the enum declaration. * Most programmers should use the {@link #toString} method rather than ...
String toString()Returns the name of this enum constant, as contained in the declaration. static <T extends Enum<T>> valueOf(Class<T> enumType, String name)Returns the enum constant of the specified enum type with the specified name. ...
Returns the name of this enum constant, as contained in the declaration. static <T extendsEnum<T>> TvalueOf(Class<T> enumType,Stringname) Returns the enum constant of the specified enum type with the specified name. Methods inherited from class java.lang.Object ...
Enumerated Type Declaration When you define an enum type, the blueprint for the variable is created. Here's how you can create variables of enum types. enum boolean {false, true}; enum boolean check; // declaring an enum variable
position * in its enum declaration, where the initial constant is assigned * an ordinal of zero). * * Most programmers will have no use for this method. It is * designed for use by sophisticated enum-based data structures, such * as {@link java.util.EnumSet} and {@link java...