it.unimi.dsi.fastutil.doubles.DoubleLists.EmptyList

All Implemented Interfaces:: DoubleCollection, DoubleIterable, DoubleList, Serializable, Cloneable, Comparable<List<? extends Double>>, Iterable<Double>, Collection<Double>, List<Double>, RandomAccess

Enclosing class:: DoubleLists

public static class DoubleLists.EmptyList
extends DoubleCollections.EmptyCollection
implements DoubleList, RandomAccess, Serializable, Cloneable

An immutable class representing an empty type-specific list.

This class may be useful to implement your own in case you subclass a type-specific list.

See Also:: Serialized Form

Method Summary

Modifier and Type	Method	Description
`void`	`add(int index, double k)`	Inserts the specified element at the specified position in this list (optional operation).
`void`	`add(int index, Double k)`	Deprecated. Please use the corresponding type-specific method instead.
`boolean`	`add(Double k)`	Deprecated. Please use the corresponding type-specific method instead.
`boolean`	`addAll(int i, DoubleCollection c)`	Inserts all of the elements in the specified type-specific collection into this type-specific list at the specified position (optional operation).
`boolean`	`addAll(int i, DoubleList c)`	Inserts all of the elements in the specified type-specific list into this type-specific list at the specified position (optional operation).
`boolean`	`addAll(int i, Collection<? extends Double> c)`
`boolean`	`addAll(DoubleList c)`	Appends all of the elements in the specified type-specific list to the end of this type-specific list (optional operation).
`void`	`addElements(int index, double[] a)`	Add (hopefully quickly) elements to this type-specific list.
`void`	`addElements(int index, double[] a, int offset, int length)`	Add (hopefully quickly) elements to this type-specific list.
`Object`	`clone()`
`int`	`compareTo(List<? extends Double> o)`
`boolean`	`equals(Object o)`
`Double`	`get(int index)`	Deprecated. Please use the corresponding type-specific method instead.
`double`	`getDouble(int i)`	Returns the element at the specified position in this list.
`void`	`getElements(int from, double[] a, int offset, int length)`	Copies (hopefully quickly) elements of this type-specific list into the given array.
`int`	`hashCode()`
`int`	`indexOf(double k)`	Returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.
`int`	`indexOf(Object k)`	Deprecated. Please use the corresponding type-specific method instead.
`DoubleListIterator`	`iterator()`	Returns a type-specific iterator on the elements of this collection.
`int`	`lastIndexOf(double k)`	Returns the index of the last occurrence of the specified element in this list, or -1 if this list does not contain the element.
`int`	`lastIndexOf(Object k)`	Deprecated. Please use the corresponding type-specific method instead.
`DoubleListIterator`	`listIterator()`	Returns a type-specific list iterator on the list.
`DoubleListIterator`	`listIterator(int i)`	Returns a type-specific list iterator on the list starting at a given index.
`boolean`	`rem(double k)`	Removes a single instance of the specified element from this collection, if it is present (optional operation).
`Double`	`remove(int k)`	Deprecated. Please use the corresponding type-specific method instead.
`double`	`removeDouble(int i)`	Removes the element at the specified position in this list (optional operation).
`void`	`removeElements(int from, int to)`	Removes (hopefully quickly) elements of this type-specific list.
`double`	`set(int index, double k)`	Replaces the element at the specified position in this list with the specified element (optional operation).
`Double`	`set(int index, Double k)`	Deprecated. Please use the corresponding type-specific method instead.
`void`	`setElements(double[] a)`	Set (hopefully quickly) elements to match the array given.
`void`	`setElements(int index, double[] a)`	Set (hopefully quickly) elements to match the array given.
`void`	`setElements(int index, double[] a, int offset, int length)`	Set (hopefully quickly) elements to match the array given.
`void`	`size(int s)`	Sets the size of this list.
`void`	`sort(DoubleComparator comparator)`	Sort a list using a type-specific comparator.
`void`	`sort(Comparator<? super Double> comparator)`	Deprecated.
`DoubleList`	`subList(int from, int to)`	Returns a type-specific view of the portion of this list from the index `from`, inclusive, to the index `to`, exclusive.
`String`	`toString()`
`void`	`unstableSort(DoubleComparator comparator)`	Sorts this list using a sort not assured to be stable.
`void`	`unstableSort(Comparator<? super Double> comparator)`	Deprecated.

Methods inherited from class it.unimi.dsi.fastutil.doubles.DoubleCollections.EmptyCollection

addAll, addAll, clear, contains, removeAll, removeAll, retainAll, retainAll, size, toArray

Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDoubleCollection

add, contains, containsAll, remove, toArray, toDoubleArray, toDoubleArray

Methods inherited from class java.util.AbstractCollection

containsAll, isEmpty, toArray

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

parallelStream, stream, toArray

Methods inherited from interface it.unimi.dsi.fastutil.doubles.DoubleCollection

addAll, contains, containsAll, removeAll, removeIf, removeIf, retainAll, toArray, toDoubleArray, toDoubleArray

Methods inherited from interface it.unimi.dsi.fastutil.doubles.DoubleIterable

forEach, forEach

Methods inherited from interface it.unimi.dsi.fastutil.doubles.DoubleList

add, contains, remove

Methods inherited from interface java.util.List

addAll, clear, containsAll, isEmpty, removeAll, replaceAll, retainAll, size, spliterator, toArray, toArray

Method Details
- getDouble
  
  public double getDouble(int i)
  
  Description copied from interface: DoubleList
  
  Returns the element at the specified position in this list.
  
  Specified by:
  
  getDouble in interface DoubleList
  
  See Also:
  
  List.get(int)
- rem
  
  public boolean rem(double k)
  
  Description copied from class: AbstractDoubleCollection
  
  Removes a single instance of the specified element from this collection, if it is present (optional operation).
  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().
  This implementation iterates over the elements in the collection, looking for the specified element and tries to remove it.
  
  Specified by:
  
  rem in interface DoubleCollection
  
  Overrides:
  
  rem in class AbstractDoubleCollection
  
  See Also:
  
  Collection.remove(Object)
- removeDouble
  
  public double removeDouble(int i)
  
  Description copied from interface: DoubleList
  
  Removes the element at the specified position in this list (optional operation).
  
  Specified by:
  
  removeDouble in interface DoubleList
  
  See Also:
  
  List.remove(int)
- add
  
  public void add(int index, double k)
  
  Description copied from interface: DoubleList
  
  Inserts the specified element at the specified position in this list (optional operation).
  
  Specified by:
  
  add in interface DoubleList
  
  See Also:
  
  List.add(int,Object)
- set
  
  public double set(int index, double k)
  
  Description copied from interface: DoubleList
  
  Replaces the element at the specified position in this list with the specified element (optional operation).
  
  Specified by:
  
  set in interface DoubleList
  
  See Also:
  
  List.set(int,Object)
- indexOf
  
  public int indexOf(double k)
  
  Description copied from interface: DoubleList
  
  Returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.
  
  Specified by:
  
  indexOf in interface DoubleList
  
  See Also:
  
  List.indexOf(Object)
- lastIndexOf
  
  public int lastIndexOf(double k)
  
  Description copied from interface: DoubleList
  
  Returns the index of the last occurrence of the specified element in this list, or -1 if this list does not contain the element.
  
  Specified by:
  
  lastIndexOf in interface DoubleList
  
  See Also:
  
  List.lastIndexOf(Object)
- addAll
  
  public boolean addAll(int i, Collection<? extends Double> c)
  
  Specified by:
  
  addAll in interface List<Double>
- addAll
  
  public boolean addAll(DoubleList c)
  
  Description copied from interface: DoubleList
  
  Appends all of the elements in the specified type-specific list to the end of this type-specific list (optional operation).
  
  Specified by:
  
  addAll in interface DoubleList
  
  See Also:
  
  List.add(int,Object)
- addAll
  
  public boolean addAll(int i, DoubleCollection c)
  
  Description copied from interface: DoubleList
  
  Inserts all of the elements in the specified type-specific collection into this type-specific list at the specified position (optional operation).
  
  Specified by:
  
  addAll in interface DoubleList
  
  See Also:
  
  List.addAll(int,java.util.Collection)
- addAll
  
  public boolean addAll(int i, DoubleList c)
  
  Description copied from interface: DoubleList
  
  Inserts all of the elements in the specified type-specific list into this type-specific list at the specified position (optional operation).
  
  Specified by:
  
  addAll in interface DoubleList
  
  See Also:
  
  List.add(int,Object)
- add
  
  @Deprecated public void add(int index, Double k)
  
  Deprecated.
  Please use the corresponding type-specific method instead.
  
  Specified by:
  
  add in interface DoubleList
  
  Specified by:
  
  add in interface List<Double>
- get
  
  @Deprecated public Double get(int index)
  
  Deprecated.
  Please use the corresponding type-specific method instead.
  
  Specified by:
  
  get in interface DoubleList
  
  Specified by:
  
  get in interface List<Double>
- add
  
  @Deprecated public boolean add(Double k)
  
  Deprecated.
  Please use the corresponding type-specific method instead.
  
  Specified by:
  
  add in interface Collection<Double>
  
  Specified by:
  
  add in interface DoubleCollection
  
  Specified by:
  
  add in interface DoubleList
  
  Specified by:
  
  add in interface List<Double>
  
  Overrides:
  
  add in class AbstractDoubleCollection
- set
  
  @Deprecated public Double set(int index, Double k)
  
  Deprecated.
  Please use the corresponding type-specific method instead.
  
  Specified by:
  
  set in interface DoubleList
  
  Specified by:
  
  set in interface List<Double>
- remove
  
  @Deprecated public Double remove(int k)
  
  Deprecated.
  Please use the corresponding type-specific method instead.
  
  Specified by:
  
  remove in interface DoubleList
  
  Specified by:
  
  remove in interface List<Double>
- indexOf
  
  @Deprecated public int indexOf(Object k)
  
  Deprecated.
  Please use the corresponding type-specific method instead.
  
  Specified by:
  
  indexOf in interface DoubleList
  
  Specified by:
  
  indexOf in interface List<Double>
- lastIndexOf
  
  @Deprecated public int lastIndexOf(Object k)
  
  Deprecated.
  Please use the corresponding type-specific method instead.
  
  Specified by:
  
  lastIndexOf in interface DoubleList
  
  Specified by:
  
  lastIndexOf in interface List<Double>
- sort
  
  public void sort(DoubleComparator comparator)
  
  Description copied from interface: DoubleList
  
  Sort a list using a type-specific comparator.
  Pass null to sort using natural ordering.
  
  Specified by:
  
  sort in interface DoubleList
  
  See Also:
  
  List.sort(java.util.Comparator)
- unstableSort
  
  public void unstableSort(DoubleComparator comparator)
  
  Description copied from interface: DoubleList
  
  Sorts this list using a sort not assured to be stable.
  Pass null to sort using natural ordering.
  This differs from List.sort(java.util.Comparator) in that the results are not assured to be stable, but may be a bit faster.
  Unless a subclass specifies otherwise, the results of the method if the list is concurrently modified during the sort are unspecified.
  
  Specified by:
  
  unstableSort in interface DoubleList
- sort
  
  @Deprecated public void sort(Comparator<? super Double> comparator)
  
  Deprecated.
  
  Description copied from interface: DoubleList
  
  Specified by:
  
  sort in interface DoubleList
  
  Specified by:
  
  sort in interface List<Double>
- unstableSort
  
  @Deprecated public void unstableSort(Comparator<? super Double> comparator)
  
  Deprecated.
  
  Description copied from interface: DoubleList
  
  Sorts this list using a sort not assured to be stable.
  
  Specified by:
  
  unstableSort in interface DoubleList
- listIterator
  
  public DoubleListIterator listIterator()
  
  Description copied from interface: DoubleList
  
  Returns a type-specific list iterator on the list.
  
  Specified by:
  
  listIterator in interface DoubleList
  
  Specified by:
  
  listIterator in interface List<Double>
  
  See Also:
  
  List.listIterator()
- iterator
  
  public DoubleListIterator iterator()
  
  Description copied from interface: DoubleCollection
  
  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 Collection<Double>
  
  Specified by:
  
  iterator in interface DoubleCollection
  
  Specified by:
  
  iterator in interface DoubleIterable
  
  Specified by:
  
  iterator in interface DoubleList
  
  Specified by:
  
  iterator in interface Iterable<Double>
  
  Specified by:
  
  iterator in interface List<Double>
  
  Overrides:
  
  iterator in class DoubleCollections.EmptyCollection
  
  Returns:
  
  a type-specific iterator on the elements of this collection.
  
  See Also:
  
  Iterable.iterator()
- listIterator
  
  public DoubleListIterator listIterator(int i)
  
  Description copied from interface: DoubleList
  
  Returns a type-specific list iterator on the list starting at a given index.
  
  Specified by:
  
  listIterator in interface DoubleList
  
  Specified by:
  
  listIterator in interface List<Double>
  
  See Also:
  
  List.listIterator(int)
- subList
  
  public DoubleList subList(int from, int to)
  
  Description copied from interface: DoubleList
  
  Returns a type-specific view of the portion of this list from the index from, inclusive, to the index to, exclusive.
  Note that this specification strengthens the one given in List.subList(int,int).
  
  Specified by:
  
  subList in interface DoubleList
  
  Specified by:
  
  subList in interface List<Double>
  
  See Also:
  
  List.subList(int,int)
- getElements
  
  public void getElements(int from, double[] a, int offset, int length)
  
  Description copied from interface: DoubleList
  
  Copies (hopefully quickly) elements of this type-specific list into the given array.
  
  Specified by:
  
  getElements in interface DoubleList
  
  Parameters:
  
  from - the start index (inclusive).
  
  a - the destination array.
  
  offset - the offset into the destination array where to store the first element copied.
  
  length - the number of elements to be copied.
- removeElements
  
  public void removeElements(int from, int to)
  
  Description copied from interface: DoubleList
  
  Removes (hopefully quickly) elements of this type-specific list.
  
  Specified by:
  
  removeElements in interface DoubleList
  
  Parameters:
  
  from - the start index (inclusive).
  
  to - the end index (exclusive).
- addElements
  
  public void addElements(int index, double[] a, int offset, int length)
  
  Description copied from interface: DoubleList
  
  Add (hopefully quickly) elements to this type-specific list.
  
  Specified by:
  
  addElements in interface DoubleList
  
  Parameters:
  
  index - the index at which to add elements.
  
  a - the array containing the elements.
  
  offset - the offset of the first element to add.
  
  length - the number of elements to add.
- addElements
  
  public void addElements(int index, double[] a)
  
  Description copied from interface: DoubleList
  
  Add (hopefully quickly) elements to this type-specific list.
  
  Specified by:
  
  addElements in interface DoubleList
  
  Parameters:
  
  index - the index at which to add elements.
  
  a - the array containing the elements.
- setElements
  
  public void setElements(double[] a)
  
  Description copied from interface: DoubleList
  
  Set (hopefully quickly) elements to match the array given.
  
  Specified by:
  
  setElements in interface DoubleList
  
  Parameters:
  
  a - the array containing the elements.
- setElements
  
  public void setElements(int index, double[] a)
  
  Description copied from interface: DoubleList
  
  Set (hopefully quickly) elements to match the array given.
  
  Specified by:
  
  setElements in interface DoubleList
  
  Parameters:
  
  index - the index at which to start setting elements.
  
  a - the array containing the elements.
- setElements
  
  public void setElements(int index, double[] a, int offset, int length)
  
  Description copied from interface: DoubleList
  Set (hopefully quickly) elements to match the array given. Sets each in this list to the corresponding elements in the array, as if by
  ListIterator iter = listIterator(index); int i = 0; while (i < length) { iter.next(); iter.set(a[offset + i++]); }
  However, the exact implementation may be more efficient, taking into account whether random access is faster or not, or at the discretion of subclasses, abuse internals.
  Specified by:
  
  setElements in interface DoubleList
  
  Parameters:
  
  index - the index at which to start setting elements.
  
  a - the array containing the elements
  
  offset - the offset of the first element to add.
  
  length - the number of elements to add.
- size
  
  public void size(int s)
  
  Description copied from interface: DoubleList
  
  Sets the size of this list.
  If the specified size is smaller than the current size, the last elements are discarded. Otherwise, they are filled with 0/null/false.
  
  Specified by:
  
  size in interface DoubleList
  
  Parameters:
  
  s - the new size.
- compareTo
  
  public int compareTo(List<? extends Double> o)
  
  Specified by:
  
  compareTo in interface Comparable<List<? extends Double>>
- clone
  
  public Object clone()
- hashCode
  
  public int hashCode()
  
  Specified by:
  
  hashCode in interface Collection<Double>
  
  Specified by:
  
  hashCode in interface List<Double>
  
  Overrides:
  
  hashCode in class DoubleCollections.EmptyCollection
- equals
  
  public boolean equals(Object o)
  
  Specified by:
  
  equals in interface Collection<Double>
  
  Specified by:
  
  equals in interface List<Double>
  
  Overrides:
  
  equals in class DoubleCollections.EmptyCollection
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class AbstractDoubleCollection

Class DoubleLists.EmptyList