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java.lang.Objectit.unimi.dsi.fastutil.chars.AbstractCharCollection
it.unimi.dsi.fastutil.chars.CharCollections.EmptyCollection
public abstract static class CharCollections.EmptyCollection
An immutable class representing an empty type-specific collection.
This class may be useful to implement your own in case you subclass a type-specific collection.
Method Summary | |
---|---|
boolean |
add(char k)
|
boolean |
addAll(CharCollection c)
Adds all elements of the given type-specific collection to this collection. |
void |
clear()
|
boolean |
contains(char k)
|
boolean |
containsAll(CharCollection c)
Checks whether this collection contains all elements from the given type-specific collection. |
boolean |
equals(java.lang.Object o)
|
int |
hashCode()
|
CharListIterator |
iterator()
Returns a type-specific iterator on the elements of this collection. |
boolean |
rem(char k)
Note that this method should be called remove() , but the clash
with the similarly named index-based method in the List interface
forces us to use a distinguished name. |
boolean |
removeAll(CharCollection c)
Remove from this collection all elements in the given type-specific collection. |
boolean |
retainAll(CharCollection c)
Retains in this collection only elements from the given type-specific collection. |
int |
size()
|
java.lang.Object[] |
toArray()
|
char[] |
toCharArray()
Returns a primitive type array containing the items of this collection. |
char[] |
toCharArray(char[] a)
Returns a primitive type array containing the items of this collection. |
Methods inherited from class it.unimi.dsi.fastutil.chars.AbstractCharCollection |
---|
add, addAll, charIterator, contains, containsAll, isEmpty, rem, remove, removeAll, retainAll, toArray, toArray, toString |
Methods inherited from class java.lang.Object |
---|
getClass, notify, notifyAll, wait, wait, wait |
Method Detail |
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public boolean add(char k)
add
in interface CharCollection
add
in class AbstractCharCollection
Collection.add(Object)
public boolean contains(char k)
Collection.contains(Object)
public java.lang.Object[] toArray()
toArray
in interface java.util.Collection<java.lang.Character>
toArray
in class AbstractCharCollection
public char[] toCharArray(char[] a)
CharCollection
Note that, contrarily to Collection.toArray(Object[])
, this
methods just writes all elements of this collection: no special
value will be added after the last one.
toCharArray
in interface CharCollection
toCharArray
in class AbstractCharCollection
a
- if this array is big enough, it will be used to store this collection.
Collection.toArray(Object[])
public char[] toCharArray()
CharCollection
toCharArray
in interface CharCollection
toCharArray
in class AbstractCharCollection
Collection.toArray()
public boolean rem(char k)
CharCollection
remove()
, but the clash
with the similarly named index-based method in the List
interface
forces us to use a distinguished name. For simplicity, the set interfaces reinstates
remove()
.
rem
in interface CharCollection
rem
in class AbstractCharCollection
Collection.remove(Object)
public boolean addAll(CharCollection c)
AbstractCharCollection
addAll
in interface CharCollection
addAll
in class AbstractCharCollection
c
- a type-specific collection.
true
if this collection changed as a result of the call.Collection.addAll(Collection)
public boolean removeAll(CharCollection c)
AbstractCharCollection
removeAll
in interface CharCollection
removeAll
in class AbstractCharCollection
c
- a type-specific collection.
true
if this collection changed as a result of the call.Collection.removeAll(Collection)
public boolean retainAll(CharCollection c)
AbstractCharCollection
retainAll
in interface CharCollection
retainAll
in class AbstractCharCollection
c
- a type-specific collection.
true
if this collection changed as a result of the call.Collection.retainAll(Collection)
public boolean containsAll(CharCollection c)
AbstractCharCollection
containsAll
in interface CharCollection
containsAll
in class AbstractCharCollection
c
- a type-specific collection.
true
if this collection contains all elements of the argument.Collection.containsAll(Collection)
public CharListIterator iterator()
CharCollection
Note 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 CharCollection
iterator
in interface CharIterable
iterator
in interface java.lang.Iterable<java.lang.Character>
iterator
in interface java.util.Collection<java.lang.Character>
iterator
in class AbstractCharCollection
public int size()
public void clear()
clear
in interface java.util.Collection<java.lang.Character>
clear
in class AbstractCharCollection
public int hashCode()
hashCode
in interface java.util.Collection<java.lang.Character>
hashCode
in class java.lang.Object
public boolean equals(java.lang.Object o)
equals
in interface java.util.Collection<java.lang.Character>
equals
in class java.lang.Object
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