Package it.unimi.dsi.fastutil.ints

Class IntCollections.UnmodifiableCollection

java.lang.Object

it.unimi.dsi.fastutil.ints.IntCollections.UnmodifiableCollection

All Implemented Interfaces:

IntCollection, IntIterable, java.io.Serializable, java.lang.Iterable<java.lang.Integer>, java.util.Collection<java.lang.Integer>

Direct Known Subclasses:

IntBigLists.UnmodifiableBigList, IntLists.UnmodifiableList, IntSets.UnmodifiableSet

Enclosing class:

IntCollections

public static class IntCollections.UnmodifiableCollection
extends java.lang.Object
implements IntCollection, java.io.Serializable

An unmodifiable wrapper class for collections.

See Also:

Serialized Form

Method Summary

Modifier and Type	Method	Description
boolean	add(int k)	Ensures that this collection contains the specified element (optional operation).
boolean	add(java.lang.Integer k)	Deprecated.
boolean	addAll(IntCollection c)	Adds all elements of the given type-specific collection to this collection.
boolean	addAll(java.util.Collection<? extends java.lang.Integer> c)
void	clear()
boolean	contains(int o)	Returns true if this collection contains the specified element.
boolean	contains(java.lang.Object k)	Deprecated.
boolean	containsAll(IntCollection c)	Checks whether this collection contains all elements from the given type-specific collection.
boolean	containsAll(java.util.Collection<?> c)
boolean	equals(java.lang.Object o)
int	hashCode()
boolean	isEmpty()
IntIterator	iterator()	Returns a type-specific iterator on the elements of this collection.
boolean	rem(int k)	Removes a single instance of the specified element from this collection, if it is present (optional operation).
boolean	remove(java.lang.Object k)	Deprecated.
boolean	removeAll(IntCollection c)	Remove from this collection all elements in the given type-specific collection.
boolean	removeAll(java.util.Collection<?> c)
boolean	retainAll(IntCollection c)	Retains in this collection only elements from the given type-specific collection.
boolean	retainAll(java.util.Collection<?> c)
int	size()
java.lang.Object[]	toArray()
int[]	toArray(int[] a)	Returns an array containing all of the elements in this collection; the runtime type of the returned array is that of the specified array.
<T> T[]	toArray(T[] a)
int[]	toIntArray()	Returns a primitive type array containing the items of this collection.
int[]	toIntArray(int[] a)	Deprecated.
java.lang.String	toString()

Methods inherited from interface java.util.Collection

parallelStream, spliterator, stream

Methods inherited from interface it.unimi.dsi.fastutil.ints.IntCollection

removeIf, removeIf

Methods inherited from interface it.unimi.dsi.fastutil.ints.IntIterable

forEach, forEach

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Detail

add

public boolean add(int k)

Description copied from interface: IntCollection

Ensures that this collection contains the specified element (optional operation).

Specified by:

add in interface IntCollection

See Also:

Collection.add(Object)

rem

public boolean rem(int k)

Description copied from interface: IntCollection

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().

Specified by:

rem in interface IntCollection

See Also:

Collection.remove(Object)

size

public int size()

Specified by:

size in interface java.util.Collection<java.lang.Integer>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Collection<java.lang.Integer>

contains

public boolean contains(int o)

Description copied from interface: IntCollection

Returns true if this collection contains the specified element.

Specified by:

contains in interface IntCollection

See Also:

Collection.contains(Object)

iterator

public IntIterator iterator()

Description copied from interface: IntCollection

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 java.util.Collection<java.lang.Integer>

Specified by:

iterator in interface IntCollection

Specified by:

iterator in interface IntIterable

Specified by:

iterator in interface java.lang.Iterable<java.lang.Integer>

Returns:

a type-specific iterator on the elements of this collection.

See Also:

Iterable.iterator()

clear

public void clear()

Specified by:

clear in interface java.util.Collection<java.lang.Integer>

toArray

public <T> T[] toArray(T[] a)

Specified by:

toArray in interface java.util.Collection<java.lang.Integer>

toArray

public java.lang.Object[] toArray()

Specified by:

toArray in interface java.util.Collection<java.lang.Integer>

containsAll

public boolean containsAll(java.util.Collection<?> c)

Specified by:

containsAll in interface java.util.Collection<java.lang.Integer>

addAll

public boolean addAll(java.util.Collection<? extends java.lang.Integer> c)

Specified by:

addAll in interface java.util.Collection<java.lang.Integer>

removeAll

public boolean removeAll(java.util.Collection<?> c)

Specified by:

removeAll in interface java.util.Collection<java.lang.Integer>

retainAll

public boolean retainAll(java.util.Collection<?> c)

Specified by:

retainAll in interface java.util.Collection<java.lang.Integer>

add

@Deprecated
public boolean add(java.lang.Integer k)

Deprecated.

Description copied from interface: IntCollection

Specified by:

add in interface java.util.Collection<java.lang.Integer>

Specified by:

add in interface IntCollection

contains

@Deprecated
public boolean contains(java.lang.Object k)

Deprecated.

Description copied from interface: IntCollection

Specified by:

contains in interface java.util.Collection<java.lang.Integer>

Specified by:

contains in interface IntCollection

remove

@Deprecated
public boolean remove(java.lang.Object k)

Deprecated.

Description copied from interface: IntCollection

Specified by:

remove in interface java.util.Collection<java.lang.Integer>

Specified by:

remove in interface IntCollection

toIntArray

public int[] toIntArray()

Description copied from interface: IntCollection

Returns a primitive type array containing the items of this collection.

Specified by:

toIntArray in interface IntCollection

Returns:

a primitive type array containing the items of this collection.

See Also:

Collection.toArray()

toIntArray

@Deprecated
public int[] toIntArray(int[] a)

Deprecated.

Description copied from interface: IntCollection

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:

toIntArray in interface IntCollection

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[])

toArray

public int[] toArray(int[] a)

Description copied from interface: IntCollection

Returns an array containing all of the elements in this collection; the runtime type of the returned array is that of the specified array.

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 IntCollection

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[])

containsAll

public boolean containsAll(IntCollection c)

Description copied from interface: IntCollection

Checks whether this collection contains all elements from the given type-specific collection.

Specified by:

containsAll in interface IntCollection

Parameters:

c - a type-specific collection.

Returns:

true if this collection contains all elements of the argument.

See Also:

Collection.containsAll(Collection)

addAll

public boolean addAll(IntCollection c)

Description copied from interface: IntCollection

Adds all elements of the given type-specific collection to this collection.

Specified by:

addAll in interface IntCollection

Parameters:

c - a type-specific collection.

Returns:

true if this collection changed as a result of the call.

See Also:

Collection.addAll(Collection)

removeAll

public boolean removeAll(IntCollection c)

Description copied from interface: IntCollection

Remove from this collection all elements in the given type-specific collection.

Specified by:

removeAll in interface IntCollection

Parameters:

c - a type-specific collection.

Returns:

true if this collection changed as a result of the call.

See Also:

Collection.removeAll(Collection)

retainAll

public boolean retainAll(IntCollection c)

Description copied from interface: IntCollection

Retains in this collection only elements from the given type-specific collection.

Specified by:

retainAll in interface IntCollection

Parameters:

c - a type-specific collection.

Returns:

true if this collection changed as a result of the call.

See Also:

Collection.retainAll(Collection)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Collection<java.lang.Integer>

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Specified by:

equals in interface java.util.Collection<java.lang.Integer>

Overrides:

equals in class java.lang.Object