Package it.unimi.dsi.fastutil.longs

Class LongCollections.EmptyCollection

    • Method Detail

      • contains

        public boolean contains​(long k)
        Description copied from class: AbstractLongCollection
        Returns true if this collection contains the specified element.

        This implementation iterates over the elements in the collection, looking for the specified element.

        Specified by:
        contains in interface LongCollection
        Overrides:
        contains in class AbstractLongCollection
        See Also:
        Collection.contains(Object)

      • toArray

        public java.lang.Object[] toArray()
        Specified by:
        toArray in interface java.util.Collection<java.lang.Long>
        Overrides:
        toArray in class java.util.AbstractCollection<java.lang.Long>

      • iterator

        public LongBidirectionalIterator iterator()
        Description copied from interface: LongCollection
        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.Long>
        Specified by:
        iterator in interface java.lang.Iterable<java.lang.Long>
        Specified by:
        iterator in interface LongCollection
        Specified by:
        iterator in interface LongIterable
        Specified by:
        iterator in class AbstractLongCollection
        Returns:
        a type-specific iterator on the elements of this collection.
        See Also:
        Iterable.iterator()

      • size

        public int size()
        Specified by:
        size in interface java.util.Collection<java.lang.Long>
        Specified by:
        size in class java.util.AbstractCollection<java.lang.Long>

      • clear

        public void clear()
        Specified by:
        clear in interface java.util.Collection<java.lang.Long>
        Overrides:
        clear in class java.util.AbstractCollection<java.lang.Long>

      • hashCode

        public int hashCode()
        Specified by:
        hashCode in interface java.util.Collection<java.lang.Long>
        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.Long>
        Overrides:
        equals in class java.lang.Object

      • addAll

        public boolean addAll​(java.util.Collection<? extends java.lang.Long> c)
        Specified by:
        addAll in interface java.util.Collection<java.lang.Long>
        Overrides:
        addAll in class java.util.AbstractCollection<java.lang.Long>

      • removeAll

        public boolean removeAll​(java.util.Collection<?> c)
        Specified by:
        removeAll in interface java.util.Collection<java.lang.Long>
        Overrides:
        removeAll in class java.util.AbstractCollection<java.lang.Long>

      • retainAll

        public boolean retainAll​(java.util.Collection<?> c)
        Specified by:
        retainAll in interface java.util.Collection<java.lang.Long>
        Overrides:
        retainAll in class java.util.AbstractCollection<java.lang.Long>

      • addAll

        public boolean addAll​(LongCollection c)
        Description copied from interface: LongCollection
        Adds all elements of the given type-specific collection to this collection.
        Specified by:
        addAll in interface LongCollection
        Overrides:
        addAll in class AbstractLongCollection
        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​(LongCollection c)
        Description copied from interface: LongCollection
        Remove from this collection all elements in the given type-specific collection.
        Specified by:
        removeAll in interface LongCollection
        Overrides:
        removeAll in class AbstractLongCollection
        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​(LongCollection c)
        Description copied from interface: LongCollection
        Retains in this collection only elements from the given type-specific collection.
        Specified by:
        retainAll in interface LongCollection
        Overrides:
        retainAll in class AbstractLongCollection
        Parameters:
        c - a type-specific collection.
        Returns:
        true if this collection changed as a result of the call.
        See Also:
        Collection.retainAll(Collection)