public class DoubleArraySet extends AbstractDoubleSet implements java.io.Serializable, java.lang.Cloneable
The main purpose of this implementation is that of wrapping cleanly the brute-force approach to the storage of a very small number of items: just put them into an array and scan linearly to find an item.
| Constructor and Description |
|---|
DoubleArraySet()
Creates a new empty array set.
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DoubleArraySet(java.util.Collection<? extends java.lang.Double> c)
Creates a new array set copying the contents of a given set.
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DoubleArraySet(double[] a)
Creates a new array set using the given backing array.
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DoubleArraySet(double[] a,
int size)
Creates a new array set using the given backing array and the given number of elements of the array.
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DoubleArraySet(DoubleCollection c)
Creates a new array set copying the contents of a given collection.
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DoubleArraySet(int capacity)
Creates a new empty array set of given initial capacity.
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| Modifier and Type | Method and Description |
|---|---|
boolean |
add(double k) |
void |
clear() |
DoubleArraySet |
clone()
Returns a deep copy of this set.
|
boolean |
contains(double k) |
boolean |
isEmpty() |
DoubleIterator |
iterator()
Returns a type-specific iterator on the elements of this collection.
|
boolean |
remove(double k)
Removes an element from this set.
|
int |
size() |
equals, hashCode, removeadd, addAll, addAll, contains, containsAll, containsAll, doubleIterator, rem, rem, removeAll, removeAll, retainAll, retainAll, toArray, toArray, toArray, toDoubleArray, toDoubleArray, toStringaddAll, containsAll, doubleIterator, rem, removeAll, retainAll, toArray, toArray, toDoubleArray, toDoubleArraypublic DoubleArraySet(double[] a)
It is responsibility of the caller that the elements of a are distinct.
a - the backing array.public DoubleArraySet()
public DoubleArraySet(int capacity)
capacity - the initial capacity.public DoubleArraySet(DoubleCollection c)
c - a collection.public DoubleArraySet(java.util.Collection<? extends java.lang.Double> c)
c - a collection.public DoubleArraySet(double[] a,
int size)
It is responsibility of the caller that the first size elements of a are distinct.
a - the backing array.size - the number of valid elements in a.public DoubleIterator iterator()
DoubleCollectionNote that this specification strengthens the one given in
Iterable.iterator(), which was already
strengthened in the corresponding type-specific class,
but was weakened by the fact that this interface extends Collection.
iterator in interface DoubleCollectioniterator in interface DoubleIterableiterator in interface DoubleSetiterator in interface java.lang.Iterable<java.lang.Double>iterator in interface java.util.Collection<java.lang.Double>iterator in interface java.util.Set<java.lang.Double>iterator in class AbstractDoubleSetpublic boolean contains(double k)
contains in interface DoubleCollectioncontains in class AbstractDoubleCollectionCollection.contains(Object)public int size()
size in interface java.util.Collection<java.lang.Double>size in interface java.util.Set<java.lang.Double>size in class java.util.AbstractCollection<java.lang.Double>public boolean remove(double k)
DoubleSetNote that the corresponding method of the type-specific collection is rem().
This unfortunate situation is caused by the clash
with the similarly named index-based method in the List interface.
remove in interface DoubleSetremove in class AbstractDoubleSetCollection.remove(Object)public boolean add(double k)
add in interface DoubleCollectionadd in class AbstractDoubleCollectionCollection.add(Object)public void clear()
clear in interface java.util.Collection<java.lang.Double>clear in interface java.util.Set<java.lang.Double>clear in class java.util.AbstractCollection<java.lang.Double>public boolean isEmpty()
isEmpty in interface java.util.Collection<java.lang.Double>isEmpty in interface java.util.Set<java.lang.Double>isEmpty in class AbstractDoubleCollectionpublic DoubleArraySet clone()
This method performs a deep copy of this hash set; the data stored in the set, however, is not cloned. Note that this makes a difference only for object keys.
clone in class java.lang.Object