AbstractCharCollection (fastutil 7.0.13)

java.lang.Object
- java.util.AbstractCollection<java.lang.Character>
- - it.unimi.dsi.fastutil.chars.AbstractCharCollection

All Implemented Interfaces:

CharCollection, CharIterable, java.lang.Iterable<java.lang.Character>, java.util.Collection<java.lang.Character>

Direct Known Subclasses:

AbstractCharBigList, AbstractCharList, AbstractCharSet, CharCollections.EmptyCollection, CharCollections.IterableCollection
```
public abstract class AbstractCharCollection
extends java.util.AbstractCollection<java.lang.Character>
implements CharCollection
```
An abstract class providing basic methods for collections implementing a type-specific interface.
In particular, this class provide iterator(), add(), remove(Object) and contains(Object) methods that just call the type-specific counterpart.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`boolean`	`add(char k)`
`boolean`	`add(java.lang.Character o)` Delegates to the corresponding type-specific method.
`boolean`	`addAll(CharCollection c)` Adds all elements of the given type-specific collection to this collection.
`boolean`	`addAll(java.util.Collection<? extends java.lang.Character> c)` Adds all elements of the given collection to this collection.
`CharIterator`	`charIterator()` Deprecated.
`boolean`	`contains(char k)`
`boolean`	`contains(java.lang.Object o)` Delegates to the corresponding type-specific method.
`boolean`	`containsAll(CharCollection c)` Checks whether this collection contains all elements from the given type-specific collection.
`boolean`	`containsAll(java.util.Collection<?> c)` Checks whether this collection contains all elements from the given collection.
`boolean`	`isEmpty()`
`abstract CharIterator`	`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`	`rem(java.lang.Object o)` Delegates to the corresponding type-specific method.
`boolean`	`remove(java.lang.Object ok)` Delegates to the type-specific `rem()` method.
`boolean`	`removeAll(CharCollection c)` Remove from this collection all elements in the given type-specific collection.
`boolean`	`removeAll(java.util.Collection<?> c)` Remove from this collection all elements in the given collection.
`boolean`	`retainAll(CharCollection c)` Retains in this collection only elements from the given type-specific collection.
`boolean`	`retainAll(java.util.Collection<?> c)` Retains in this collection only elements from the given collection.
`java.lang.Object[]`	`toArray()`
`char[]`	`toArray(char[] a)` Returns a primitive type array containing the items of this collection.
`<T> T[]`	`toArray(T[] a)` Returns an containing the items of this collection; the runtime type of the returned array is that of the specified array.
`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.
`java.lang.String`	`toString()`

Methods inherited from class java.util.AbstractCollection
clear, size

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection
clear, equals, hashCode, parallelStream, removeIf, size, spliterator, stream

Methods inherited from interface java.lang.Iterable
forEach

- Method Detail
  - toArray
```
public char[] toArray(char[] a)
```
    Description copied from interface: CharCollection
    
    Returns a primitive type array containing the items of this collection.
    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.
    
    Specified by:
    
    toArray in interface CharCollection
    
    Parameters:
    
    a - if this array is big enough, it will be used to store this collection.
    
    Returns:
    
    a primitive type array containing the items of this collection.
    
    See Also:
    
    Collection.toArray(Object[])
  - toCharArray
```
public char[] toCharArray()
```
    Description copied from interface: CharCollection
    
    Returns a primitive type array containing the items of this collection.
    
    Specified by:
    
    toCharArray in interface CharCollection
    
    Returns:
    
    a primitive type array containing the items of this collection.
    
    See Also:
    
    Collection.toArray()
  - toCharArray
```
public char[] toCharArray(char[] a)
```
    Description copied from interface: CharCollection
    
    Returns a primitive type array containing the items of this collection.
    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.
    
    Specified by:
    
    toCharArray in interface CharCollection
    
    Parameters:
    
    a - if this array is big enough, it will be used to store this collection.
    
    Returns:
    
    a primitive type array containing the items of this collection.
    
    See Also:
    
    Collection.toArray(Object[])
  - addAll
```
public boolean addAll(CharCollection c)
```
    Adds all elements of the given type-specific collection to this collection.
    
    Specified by:
    
    addAll in interface CharCollection
    
    Parameters:
    
    c - a type-specific collection.
    
    Returns:
    
    true if this collection changed as a result of the call.
    
    See Also:
    
    Collection.addAll(Collection)
  - containsAll
```
public boolean containsAll(CharCollection c)
```
    Checks whether this collection contains all elements from the given type-specific collection.
    
    Specified by:
    
    containsAll in interface CharCollection
    
    Parameters:
    
    c - a type-specific collection.
    
    Returns:
    
    true if this collection contains all elements of the argument.
    
    See Also:
    
    Collection.containsAll(Collection)
  - retainAll
```
public boolean retainAll(CharCollection c)
```
    Retains in this collection only elements from the given type-specific collection.
    
    Specified by:
    
    retainAll in interface CharCollection
    
    Parameters:
    
    c - a type-specific collection.
    
    Returns:
    
    true if this collection changed as a result of the call.
    
    See Also:
    
    Collection.retainAll(Collection)
  - removeAll
```
public boolean removeAll(CharCollection c)
```
    Remove from this collection all elements in the given type-specific collection.
    
    Specified by:
    
    removeAll in interface CharCollection
    
    Parameters:
    
    c - a type-specific collection.
    
    Returns:
    
    true if this collection changed as a result of the call.
    
    See Also:
    
    Collection.removeAll(Collection)
  - toArray
```
public java.lang.Object[] toArray()
```
    Specified by:
    
    toArray in interface java.util.Collection<java.lang.Character>
    
    Overrides:
    
    toArray in class java.util.AbstractCollection<java.lang.Character>
  - toArray
```
public <T> T[] toArray(T[] a)
```
    Description copied from interface: CharCollection
    
    Returns an containing the items of this collection; the runtime type of the returned array is that of the specified array.
    Warning: 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.
    
    Specified by:
    
    toArray in interface CharCollection
    
    Specified by:
    
    toArray in interface java.util.Collection<java.lang.Character>
    
    Overrides:
    
    toArray in class java.util.AbstractCollection<java.lang.Character>
    
    Parameters:
    
    a - if this array is big enough, it will be used to store this collection.
    
    Returns:
    
    a primitive type array containing the items of this collection.
    
    See Also:
    
    Collection.toArray(Object[])
  - addAll
```
public boolean addAll(java.util.Collection<? extends java.lang.Character> c)
```
    Adds all elements of the given collection to this collection.
    
    Specified by:
    
    addAll in interface java.util.Collection<java.lang.Character>
    
    Overrides:
    
    addAll in class java.util.AbstractCollection<java.lang.Character>
    
    Parameters:
    
    c - a collection.
    
    Returns:
    
    true if this collection changed as a result of the call.
  - add
```
public boolean add(char k)
```
    Specified by:
    
    add in interface CharCollection
    
    See Also:
    
    Collection.add(Object)
  - charIterator
```
@Deprecated
public CharIterator charIterator()
```
    Deprecated.
    
    Delegates to the new covariantly stronger generic method.
    
    Specified by:
    
    charIterator in interface CharCollection
    
    See Also:
    
    CharCollection.iterator()
  - iterator
```
public abstract CharIterator iterator()
```
    Description copied from interface: CharCollection
    
    Returns a type-specific iterator on the elements of this collection.
    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.
    
    Specified by:
    
    iterator in interface CharCollection
    
    Specified by:
    
    iterator in interface CharIterable
    
    Specified by:
    
    iterator in interface java.lang.Iterable<java.lang.Character>
    
    Specified by:
    
    iterator in interface java.util.Collection<java.lang.Character>
    
    Specified by:
    
    iterator in class java.util.AbstractCollection<java.lang.Character>
    
    Returns:
    
    a type-specific iterator on the elements of this collection.
  - remove
```
public boolean remove(java.lang.Object ok)
```
    Delegates to the type-specific rem() method.
    
    Specified by:
    
    remove in interface java.util.Collection<java.lang.Character>
    
    Overrides:
    
    remove in class java.util.AbstractCollection<java.lang.Character>
  - add
```
public boolean add(java.lang.Character o)
```
    Delegates to the corresponding type-specific method.
    
    Specified by:
    
    add in interface java.util.Collection<java.lang.Character>
    
    Overrides:
    
    add in class java.util.AbstractCollection<java.lang.Character>
  - rem
```
public boolean rem(java.lang.Object o)
```
    Delegates to the corresponding type-specific method.
  - contains
```
public boolean contains(java.lang.Object o)
```
    Delegates to the corresponding type-specific method.
    
    Specified by:
    
    contains in interface java.util.Collection<java.lang.Character>
    
    Overrides:
    
    contains in class java.util.AbstractCollection<java.lang.Character>
  - contains
```
public boolean contains(char k)
```
    Specified by:
    
    contains in interface CharCollection
    
    See Also:
    
    Collection.contains(Object)
  - rem
```
public boolean rem(char k)
```
    Description copied from interface: CharCollection
    
    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. For simplicity, the set interfaces reinstates remove().
    
    Specified by:
    
    rem in interface CharCollection
    
    See Also:
    
    Collection.remove(Object)
  - containsAll
```
public boolean containsAll(java.util.Collection<?> c)
```
    Checks whether this collection contains all elements from the given collection.
    
    Specified by:
    
    containsAll in interface java.util.Collection<java.lang.Character>
    
    Overrides:
    
    containsAll in class java.util.AbstractCollection<java.lang.Character>
    
    Parameters:
    
    c - a collection.
    
    Returns:
    
    true if this collection contains all elements of the argument.
  - retainAll
```
public boolean retainAll(java.util.Collection<?> c)
```
    Retains in this collection only elements from the given collection.
    
    Specified by:
    
    retainAll in interface java.util.Collection<java.lang.Character>
    
    Overrides:
    
    retainAll in class java.util.AbstractCollection<java.lang.Character>
    
    Parameters:
    
    c - a collection.
    
    Returns:
    
    true if this collection changed as a result of the call.
  - removeAll
```
public boolean removeAll(java.util.Collection<?> c)
```
    Remove from this collection all elements in the given collection. If the collection is an instance of this class, it uses faster iterators.
    
    Specified by:
    
    removeAll in interface java.util.Collection<java.lang.Character>
    
    Overrides:
    
    removeAll in class java.util.AbstractCollection<java.lang.Character>
    
    Parameters:
    
    c - a collection.
    
    Returns:
    
    true if this collection changed as a result of the call.
  - isEmpty
```
public boolean isEmpty()
```
    Specified by:
    
    isEmpty in interface java.util.Collection<java.lang.Character>
    
    Overrides:
    
    isEmpty in class java.util.AbstractCollection<java.lang.Character>
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.util.AbstractCollection<java.lang.Character>

Class AbstractCharCollection

Method Summary

Methods inherited from class java.util.AbstractCollection

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Collection

Methods inherited from interface java.lang.Iterable

Method Detail

toArray

toCharArray

toCharArray

addAll

containsAll

retainAll

removeAll

toArray

toArray

addAll

add

charIterator

iterator

remove

add

rem

contains

contains

rem

containsAll

retainAll

removeAll

isEmpty

toString