public class Char2DoubleMaps extends Object
Maps
,
Collections
Modifier and Type | Class and Description |
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static class |
Char2DoubleMaps.EmptyMap
An immutable class representing an empty type-specific map.
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static class |
Char2DoubleMaps.Singleton
An immutable class representing a type-specific singleton map.
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static class |
Char2DoubleMaps.SynchronizedMap
A synchronized wrapper class for maps.
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static class |
Char2DoubleMaps.UnmodifiableMap
An unmodifiable wrapper class for maps.
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Modifier and Type | Field and Description |
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static Char2DoubleMaps.EmptyMap |
EMPTY_MAP
An empty type-specific map (immutable).
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Modifier and Type | Method and Description |
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static Char2DoubleMap |
singleton(Character key,
Double value)
Returns a type-specific immutable map containing only the specified pair.
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static Char2DoubleMap |
singleton(char key,
double value)
Returns a type-specific immutable map containing only the specified pair.
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static Char2DoubleMap |
synchronize(Char2DoubleMap m)
Returns a synchronized type-specific map backed by the given type-specific map.
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static Char2DoubleMap |
synchronize(Char2DoubleMap m,
Object sync)
Returns a synchronized type-specific map backed by the given type-specific map, using an assigned object to synchronize.
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static Char2DoubleMap |
unmodifiable(Char2DoubleMap m)
Returns an unmodifiable type-specific map backed by the given type-specific map.
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public static final Char2DoubleMaps.EmptyMap EMPTY_MAP
public static Char2DoubleMap singleton(char key, double value)
Note that albeit the returned map is immutable, its default return value may be changed.
key
- the only key of the returned map.value
- the only value of the returned map.<key,value>
.public static Char2DoubleMap singleton(Character key, Double value)
Note that albeit the returned map is immutable, its default return value may be changed.
key
- the only key of the returned map.value
- the only value of the returned map.<key,value>
.public static Char2DoubleMap synchronize(Char2DoubleMap m)
m
- the map to be wrapped in a synchronized map.Collections.synchronizedMap(Map)
public static Char2DoubleMap synchronize(Char2DoubleMap m, Object sync)
m
- the map to be wrapped in a synchronized map.sync
- an object that will be used to synchronize the access to the map.Collections.synchronizedMap(Map)
public static Char2DoubleMap unmodifiable(Char2DoubleMap m)
m
- the map to be wrapped in an unmodifiable map.Collections.unmodifiableMap(Map)