boolean
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add(E e)
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Ensures that this collection contains the specified element (optional operation).
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boolean
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addAll(Collection c)
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Adds all of the elements in the specified collection to this collection (optional operation).
|
void
|
clear()
|
Removes all of the elements from this collection (optional operation).
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boolean
|
contains(Object o)
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Returns true if this collection contains the specified element.
|
boolean
|
containsAll(Collection c)
|
Returns true if this collection contains all of the elements in the specified collection.
|
boolean
|
equals(Object o)
|
Compares the specified object with this collection for equality.
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int
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hashCode()
|
Returns the hash code value for this collection.
|
boolean
|
isEmpty()
|
Returns true if this collection contains no elements.
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Iterator
|
iterator()
|
Returns an iterator over the elements in this collection.
|
default Stream
|
parallelStream()
|
Returns a possibly parallel Stream with this collection as its source.
|
boolean
|
remove(Object o)
|
Removes a single instance of the specified element from this collection, if it is present (optional operation).
|
boolean
|
removeAll(Collection c)
|
Removes all of this collection’s elements that are also contained in the specified collection (optional operation).
|
default boolean
|
removeIf(Predicate filter)
|
Removes all of the elements of this collection that satisfy the given predicate.
|
boolean
|
retainAll(Collection c)
|
Retains only the elements in this collection that are contained in the specified collection (optional operation).
|
int
|
size()
|
Returns the number of elements in this collection.
|
default Spliterator
|
spliterator()
|
Creates a Spliterator over the elements in this collection.
|
default Stream
|
stream()
|
Returns a sequential Stream with this collection as its source.
|
Object[]
|
toArray()
|
Returns an array containing all of the elements in this collection.
|
T[]
|
toArray(T[] 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.
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