public class CharSets extends Object
Collections
Modifier and Type | Class and Description |
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static class |
CharSets.EmptySet
An immutable class representing the empty set and implementing a type-specific set interface.
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static class |
CharSets.Singleton
An immutable class representing a type-specific singleton set.
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static class |
CharSets.SynchronizedSet
A synchronized wrapper class for sets.
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static class |
CharSets.UnmodifiableSet
An unmodifiable wrapper class for sets.
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Modifier and Type | Field and Description |
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static CharSets.EmptySet |
EMPTY_SET
An empty set (immutable).
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Modifier and Type | Method and Description |
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static CharSet |
singleton(char element)
Returns a type-specific immutable set containing only the specified element.
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static CharSet |
singleton(Character element)
Returns a type-specific immutable set containing only the specified element.
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static CharSet |
synchronize(CharSet s)
Returns a synchronized type-specific set backed by the given type-specific set.
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static CharSet |
synchronize(CharSet s,
Object sync)
Returns a synchronized type-specific set backed by the given type-specific set, using an assigned object to synchronize.
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static CharSet |
unmodifiable(CharSet s)
Returns an unmodifiable type-specific set backed by the given type-specific set.
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public static final CharSets.EmptySet EMPTY_SET
The class of this objects represent an abstract empty set that is a subset of a (sorted) type-specific set.
public static CharSet singleton(char element)
element
- the only element of the returned set.element
.public static CharSet singleton(Character element)
element
- the only element of the returned set.element
.public static CharSet synchronize(CharSet s)
s
- the set to be wrapped in a synchronized set.Collections.synchronizedSet(Set)
public static CharSet synchronize(CharSet s, Object sync)
s
- the set to be wrapped in a synchronized set.sync
- an object that will be used to synchronize the access to the set.Collections.synchronizedSet(Set)
public static CharSet unmodifiable(CharSet s)
s
- the set to be wrapped in an unmodifiable set.Collections.unmodifiableSet(Set)