Vector Class

Reference

Definition

Namespace:: Java.Util

Assembly:: Mono.Android.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

The Vector class implements a growable array of objects.

[Android.Runtime.Register("java/util/Vector", DoNotGenerateAcw=true)]
[Java.Interop.JavaTypeParameters(new System.String[] { "E" })]
public class Vector : Java.Util.AbstractList, IDisposable, Java.Interop.IJavaPeerable, Java.IO.ISerializable, Java.Lang.ICloneable, Java.Util.IRandomAccess

[<Android.Runtime.Register("java/util/Vector", DoNotGenerateAcw=true)>]
[<Java.Interop.JavaTypeParameters(new System.String[] { "E" })>]
type Vector = class
    inherit AbstractList
    interface ISerializable
    interface IJavaObject
    interface IDisposable
    interface IJavaPeerable
    interface ICloneable
    interface IList
    interface ICollection
    interface IIterable
    interface IRandomAccess

Inheritance: Object

Object

AbstractCollection

AbstractList
Vector

Derived: Java.Util.Stack

Attributes: RegisterAttribute JavaTypeParametersAttribute

Implements: IJavaObject IJavaPeerable ISerializable ICloneable IIterable ICollection IList IRandomAccess IDisposable

Remarks

The Vector class implements a growable array of objects. Like an array, it contains components that can be accessed using an integer index. However, the size of a Vector can grow or shrink as needed to accommodate adding and removing items after the Vector has been created.

Each vector tries to optimize storage management by maintaining a capacity and a capacityIncrement. The capacity is always at least as large as the vector size; it is usually larger because as components are added to the vector, the vector's storage increases in chunks the size of capacityIncrement. An application can increase the capacity of a vector before inserting a large number of components; this reduces the amount of incremental reallocation.

The iterators returned by this class's #iterator() iterator and #listIterator(int) listIterator methods are fail-fast: if the vector is structurally modified at any time after the iterator is created, in any way except through the iterator's own ListIterator#remove() remove or ListIterator#add(Object) add methods, the iterator will throw a ConcurrentModificationException. Thus, in the face of concurrent modification, the iterator fails quickly and cleanly, rather than risking arbitrary, non-deterministic behavior at an undetermined time in the future. The Enumeration Enumerations returned by the #elements() elements method are not fail-fast; if the Vector is structurally modified at any time after the enumeration is created then the results of enumerating are undefined.

Note that the fail-fast behavior of an iterator cannot be guaranteed as it is, generally speaking, impossible to make any hard guarantees in the presence of unsynchronized concurrent modification. Fail-fast iterators throw ConcurrentModificationException on a best-effort basis. Therefore, it would be wrong to write a program that depended on this exception for its correctness: the fail-fast behavior of iterators should be used only to detect bugs.

As of the Java 2 platform v1.2, this class was retrofitted to implement the List interface, making it a member of the Java Collections Framework. Unlike the new collection implementations, Vector is synchronized. If a thread-safe implementation is not needed, it is recommended to use ArrayList in place of Vector.

Added in 1.0.

Java documentation for java.util.Vector.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Constructors

Vector()	Constructs an empty vector so that its internal data array has size `10` and its standard capacity increment is zero.
Vector(ICollection)	Constructs a vector containing the elements of the specified collection, in the order they are returned by the collection's iterator.
Vector(Int32, Int32)	Constructs an empty vector with the specified initial capacity and capacity increment.
Vector(Int32)	Constructs an empty vector with the specified initial capacity and with its capacity increment equal to zero.
Vector(IntPtr, JniHandleOwnership)	A constructor used when creating managed representations of JNI objects; called by the runtime.

Properties

CapacityIncrement	The amount by which the capacity of the vector is automatically incremented when its size becomes greater than its capacity.
Class	Returns the runtime class of this `Object`. (Inherited from Object)
ElementCount	The number of valid components in this `Vector` object.
ElementData	The array buffer into which the components of the vector are stored.
Handle	The handle to the underlying Android instance. (Inherited from Object)
IsEmpty	To be added (Inherited from AbstractCollection)
JniIdentityHashCode	(Inherited from Object)
JniPeerMembers
ModCount	The number of times this list has been structurally modified. (Inherited from AbstractList)
PeerReference	(Inherited from Object)
ThresholdClass	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.
ThresholdType	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.

Methods

Add(Int32, Object)	To be added (Inherited from AbstractList)
Add(Object)	To be added (Inherited from AbstractCollection)
AddAll(ICollection)	To be added (Inherited from AbstractCollection)
AddAll(Int32, ICollection)	To be added (Inherited from AbstractList)
AddElement(Object)	Adds the specified component to the end of this vector, increasing its size by one.
Capacity()	Returns the current capacity of this vector.
Clear()	To be added (Inherited from AbstractCollection)
Clone()	Returns a clone of this vector.
Contains(Object)	To be added (Inherited from AbstractCollection)
ContainsAll(ICollection)	To be added (Inherited from AbstractCollection)
CopyInto(Object[])	Copies the components of this vector into the specified array.
Dispose()	(Inherited from Object)
Dispose(Boolean)	(Inherited from Object)
ElementAt(Int32)	Returns the component at the specified index.
Elements()	Returns an enumeration of the components of this vector.
EnsureCapacity(Int32)	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.
Equals(Object)	Indicates whether some other object is "equal to" this one. (Inherited from Object)
FirstElement()	Returns the first component (the item at index `0`) of this vector.
ForEach(IConsumer)
Get(Int32)	Returns the element at the specified position in this Vector.
GetHashCode()	Returns a hash code value for the object. (Inherited from Object)
IndexOf(Object, Int32)	Returns 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.
IndexOf(Object)	To be added (Inherited from AbstractList)
InsertElementAt(Object, Int32)	Inserts the specified object as a component in this vector at the specified `index`.
Iterator()	Returns an iterator over the elements in this list in proper sequence. (Inherited from AbstractList)
JavaFinalize()	Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object)
LastElement()	Returns the last component of the vector.
LastIndexOf(Object, Int32)	Returns 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.
LastIndexOf(Object)	To be added (Inherited from AbstractList)
ListIterator()	To be added (Inherited from AbstractList)
ListIterator(Int32)	To be added (Inherited from AbstractList)
Notify()	Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object)
NotifyAll()	Wakes up all threads that are waiting on this object's monitor. (Inherited from Object)
Remove(Int32)	To be added (Inherited from AbstractList)
Remove(Object)	To be added (Inherited from AbstractCollection)
RemoveAll(ICollection)	To be added (Inherited from AbstractCollection)
RemoveAllElements()	Removes all components from this vector and sets its size to zero.
RemoveElement(Object)	Removes the first (lowest-indexed) occurrence of the argument from this vector.
RemoveElementAt(Int32)	Deletes the component at the specified index.
RemoveIf(IPredicate)
RemoveRange(Int32, Int32)	Removes from this list all of the elements whose index is between `fromIndex`, inclusive, and `toIndex`, exclusive. (Inherited from AbstractList)
ReplaceAll(IUnaryOperator)
RetainAll(ICollection)	To be added (Inherited from AbstractCollection)
Set(Int32, Object)	To be added (Inherited from AbstractList)
SetElementAt(Object, Int32)	Sets the component at the specified `index` of this vector to be the specified object.
SetHandle(IntPtr, JniHandleOwnership)	Sets the Handle property. (Inherited from Object)
SetSize(Int32)	Sets the size of this vector.
Size()	Returns the number of components in this vector.
Sort(IComparator)
Spliterator()	Creates a <em>late-binding</em> and <em>fail-fast</em> `Spliterator` over the elements in this list.
SubList(Int32, Int32)	To be added (Inherited from AbstractList)
ToArray()	To be added (Inherited from AbstractCollection)
ToArray(Object[])	To be added (Inherited from AbstractCollection)
ToArray<T>()	(Inherited from Object)
ToString()	Returns a string representation of the object. (Inherited from Object)
TrimToSize()	Trims the capacity of this vector to be the vector's current size.
UnregisterFromRuntime()	(Inherited from Object)
Wait()	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object)
Wait(Int64, Int32)	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object)
Wait(Int64)	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object)

Explicit Interface Implementations

IJavaPeerable.Disposed()	(Inherited from Object)
IJavaPeerable.DisposeUnlessReferenced()	(Inherited from Object)
IJavaPeerable.Finalized()	(Inherited from Object)
IJavaPeerable.JniManagedPeerState	(Inherited from Object)
IJavaPeerable.SetJniIdentityHashCode(Int32)	(Inherited from Object)
IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates)	(Inherited from Object)
IJavaPeerable.SetPeerReference(JniObjectReference)	(Inherited from Object)

Extension Methods

JavaCast<TResult>(IJavaObject)	Performs an Android runtime-checked type conversion.
JavaCast<TResult>(IJavaObject)
GetJniTypeName(IJavaPeerable)
ToEnumerable(IIterable)
ToEnumerable<T>(IIterable)

Applies to

共用方式為