Vector (Java SE 26 & JDK 26)
- Type Parameters:
E- Type of component elements
- All Implemented Interfaces:
Serializable, Cloneable, Iterable<E>, Collection<E>, List<E>, RandomAccess, SequencedCollection<E>
- Direct Known Subclasses:
Stack
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Field Summary
Fields
protected intThe amount by which the capacity of the vector is automatically incremented when its size becomes greater than its capacity.
protected intThe number of valid components in this
Vectorobject.The array buffer into which the components of the vector are stored.
Fields declared in class AbstractList
protected intThe number of times this list has been structurally modified.
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Constructor Summary
Constructors
Vector()Constructs an empty vector so that its internal data array has size
10and its standard capacity increment is zero.Vector(int initialCapacity) Constructs an empty vector with the specified initial capacity and with its capacity increment equal to zero.
Vector(int initialCapacity, int capacityIncrement) Constructs an empty vector with the specified initial capacity and capacity increment.
Constructs a vector containing the elements of the specified collection, in the order they are returned by the collection's iterator.
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Method Summary
voidInserts the specified element at the specified position in this Vector.
booleanAppends the specified element to the end of this Vector.
booleanInserts all of the elements in the specified Collection into this Vector at the specified position.
booleanAppends all of the elements in the specified Collection to the end of this Vector, in the order that they are returned by the specified Collection's Iterator.
voidaddElement(E obj) Adds the specified component to the end of this vector, increasing its size by one.
intcapacity()Returns the current capacity of this vector.
voidclear()Removes all of the elements from this Vector.
clone()Returns a clone of this vector.
booleanReturns
trueif this vector contains the specified element.booleanReturns true if this Vector contains all of the elements in the specified Collection.
voidCopies the components of this vector into the specified array.
elementAt(int index) Returns the component at the specified index.
elements()Returns an enumeration of the components of this vector.
voidensureCapacity(int minCapacity) Increases the capacity of this vector, if necessary, to ensure that it can hold at least the number of components specified by the minimum capacity argument.
booleanCompares the specified Object with this Vector for equality.
Returns the first component (the item at index
0) of this vector.voidPerforms the given action for each element of the
Iterableuntil all elements have been processed or the action throws an exception.get(int index) Returns the element at the specified position in this Vector.
inthashCode()Returns the hash code value for this Vector.
intReturns the index of the first occurrence of the specified element in this vector, or -1 if this vector does not contain the element.
intReturns the index of the first occurrence of the specified element in this vector, searching forwards from
index, or returns -1 if the element is not found.voidinsertElementAt(E obj, int index) Inserts the specified object as a component in this vector at the specified
index.booleanisEmpty()Tests if this vector has no components.
iterator()Returns an iterator over the elements in this list in proper sequence.
Returns the last component of the vector.
intReturns the index of the last occurrence of the specified element in this vector, or -1 if this vector does not contain the element.
intReturns the index of the last occurrence of the specified element in this vector, searching backwards from
index, or returns -1 if the element is not found.Returns a list iterator over the elements in this list (in proper sequence).
listIterator(int index) Returns a list iterator over the elements in this list (in proper sequence), starting at the specified position in the list.
remove(int index) Removes the element at the specified position in this Vector.
booleanRemoves the first occurrence of the specified element in this Vector If the Vector does not contain the element, it is unchanged.
booleanRemoves from this Vector all of its elements that are contained in the specified Collection.
voidRemoves all components from this vector and sets its size to zero.
booleanRemoves the first (lowest-indexed) occurrence of the argument from this vector.
voidremoveElementAt(int index) Deletes the component at the specified index.
booleanRemoves all of the elements of this collection that satisfy the given predicate (optional operation).
protected voidremoveRange(int fromIndex, int toIndex) Removes from this list all of the elements whose index is between
fromIndex, inclusive, andtoIndex, exclusive.voidReplaces each element of this list with the result of applying the operator to that element (optional operation).
booleanRetains only the elements in this Vector that are contained in the specified Collection.
Replaces the element at the specified position in this Vector with the specified element.
voidsetElementAt(E obj, int index) Sets the component at the specified
indexof this vector to be the specified object.voidsetSize(int newSize) Sets the size of this vector.
intsize()Returns the number of components in this vector.
subList(int fromIndex, int toIndex) Returns a view of the portion of this List between fromIndex, inclusive, and toIndex, exclusive.
toArray()Returns an array containing all of the elements in this Vector in the correct order.
<T> T[]toArray(T[] a) Returns an array containing all of the elements in this Vector in the correct order; the runtime type of the returned array is that of the specified array.
toString()Returns a string representation of this Vector, containing the String representation of each element.
voidTrims the capacity of this vector to be the vector's current size.
Methods declared in class Object
finalize, getClass, notify, notifyAll, wait, wait, waitprotected voidDeprecated, for removal: This API element is subject to removal in a future version.
Returns the runtime class of this
Object.final voidWakes up a single thread that is waiting on this object's monitor.
final voidWakes up all threads that are waiting on this object's monitor.
final voidCauses the current thread to wait until it is awakened, typically by being notified or interrupted.
final voidwait(long timeoutMillis) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
final voidwait(long timeoutMillis, int nanos) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
Methods declared in interface Collection
parallelStream, stream, toArrayReturns a possibly parallel
Streamwith this collection as its source.Returns a sequential
Streamwith this collection as its source.default <T> T[]Returns an array containing all of the elements in this collection, using the provided
generatorfunction to allocate the returned array.Methods declared in interface List
addFirst, addLast, getFirst, getLast, removeFirst, removeLast, reversed, sortdefault voidAdds an element as the first element of this collection (optional operation).
default voidAdds an element as the last element of this collection (optional operation).
default EGets the first element of this collection.
default EGets the last element of this collection.
default ERemoves and returns the first element of this collection (optional operation).
default ERemoves and returns the last element of this collection (optional operation).
Returns a reverse-ordered view of this collection.
default voidSorts this list according to the order induced by the specified
Comparator(optional operation).
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Field Details
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elementData
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elementCount
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capacityIncrement
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Constructor Details
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Vector
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Vector
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Vector
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Vector
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Method Details
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copyInto
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trimToSize
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ensureCapacity
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setSize
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capacity
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size
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isEmpty
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elements
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contains
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indexOf
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indexOf
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lastIndexOf
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lastIndexOf
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elementAt
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firstElement
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lastElement
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setElementAt
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removeElementAt
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insertElementAt
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addElement
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removeElement
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removeAllElements
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clone
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toArray
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toArray
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get
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set
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add
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remove
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add
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remove
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clear
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containsAll
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addAll
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removeAll
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retainAll
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removeIf
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addAll
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equals
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hashCode
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toString
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subList
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removeRange
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listIterator
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listIterator
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iterator
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forEach
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replaceAll
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spliterator
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