| Package | Description | 
|---|---|
| java.lang | Provides classes that are fundamental to the design of the Java
 programming language. | 
| java.util | Contains the collections framework, legacy collection classes, event model,
date and time facilities, internationalization, and miscellaneous utility
classes (a string tokenizer, a random-number generator, and a bit array). | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | Enum<E extends Enum<E>>This is the common base class of all Java language enumeration types. | 
| Modifier and Type | Method and Description | 
|---|---|
| static <T extends Enum<T>> | Enum. valueOf(Class<T> enumType,
       String name)Returns the enum constant of the specified enum type with the
 specified name. | 
| Modifier and Type | Method and Description | 
|---|---|
| Class<? extends Enum> | EnumConstantNotPresentException. enumType()Returns the type of the missing enum constant. | 
| Constructor and Description | 
|---|
| EnumConstantNotPresentException(Class<? extends Enum> enumType,
                               String constantName)Constructs an EnumConstantNotPresentException for the
 specified constant. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | EnumMap<K extends Enum<K>,V>A specialized  Mapimplementation for use with enum type keys. | 
| class  | EnumSet<E extends Enum<E>>A specialized  Setimplementation for use with enum types. | 
| Modifier and Type | Method and Description | 
|---|---|
| static <E extends Enum<E>> | EnumSet. allOf(Class<E> elementType)Creates an enum set containing all of the elements in the specified
 element type. | 
| static <E extends Enum<E>> | EnumSet. complementOf(EnumSet<E> s)Creates an enum set with the same element type as the specified enum
 set, initially containing all the elements of this type that are
 not contained in the specified set. | 
| static <E extends Enum<E>> | EnumSet. copyOf(Collection<E> c)Creates an enum set initialized from the specified collection. | 
| static <E extends Enum<E>> | EnumSet. copyOf(EnumSet<E> s)Creates an enum set with the same element type as the specified enum
 set, initially containing the same elements (if any). | 
| static <E extends Enum<E>> | EnumSet. noneOf(Class<E> elementType)Creates an empty enum set with the specified element type. | 
| static <E extends Enum<E>> | EnumSet. of(E e)Creates an enum set initially containing the specified element. | 
| static <E extends Enum<E>> | EnumSet. of(E first,
  E... rest)Creates an enum set initially containing the specified elements. | 
| static <E extends Enum<E>> | EnumSet. of(E e1,
  E e2)Creates an enum set initially containing the specified elements. | 
| static <E extends Enum<E>> | EnumSet. of(E e1,
  E e2,
  E e3)Creates an enum set initially containing the specified elements. | 
| static <E extends Enum<E>> | EnumSet. of(E e1,
  E e2,
  E e3,
  E e4)Creates an enum set initially containing the specified elements. | 
| static <E extends Enum<E>> | EnumSet. of(E e1,
  E e2,
  E e3,
  E e4,
  E e5)Creates an enum set initially containing the specified elements. | 
| static <E extends Enum<E>> | EnumSet. range(E from,
     E to)Creates an enum set initially containing all of the elements in the
 range defined by the two specified endpoints. | 
| Modifier and Type | Method and Description | 
|---|---|
| static <E extends Enum<E>> | EnumSet. of(E first,
  E... rest)Creates an enum set initially containing the specified elements. | 
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