java.util
Class Vector

java.lang.Object
  java.util.Vector

Direct Known Subclasses:

Queue, Stack

public class Vector
extends Object

A dynamic array.

Field Summary

protected int	capacityIncrement
protected int	elementCount
protected Object[]	elementData

Constructor Summary

Vector()

Vector(int initialCapacity)

Vector(int initialCapacity, int capacityIncrement)

Method Summary

void	addElement(Object aObj)
int	capacity()
void	clear()
Object	elementAt(int aIndex)
Enumeration	elements() Returns a convenient Enumaration object to cycle through elements in Vector.
void	ensureCapacity(int minCapacity)
boolean	equals(Object aObj)
int	indexOf(Object aObj)
int	indexOf(Object aObj, int aIndex)
void	insertElementAt(Object aObj, int aIndex)
boolean	isEmpty()
int	lastIndexOf(Object anObject) delivers the index of the last occurrence of the object
int	lastIndexOf(Object anObject, int anIndex) delivers the index of the last occurrence of the object starting from some index
void	removeAllElements()
boolean	removeElement(Object aObj)
void	removeElementAt(int aIndex)
void	setElementAt(Object aObj, int aIndex)
void	setSize(int aSize)
int	size()
Object[]	toArray()
void	trimToSize()

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

elementData

protected Object[] elementData

capacityIncrement

protected int capacityIncrement

elementCount

protected int elementCount

Constructor Detail

Vector

public Vector(int initialCapacity,
              int capacityIncrement)

Vector

public Vector(int initialCapacity)

Vector

public Vector()

Method Detail

elements

public Enumeration elements()

Returns a convenient Enumaration object to cycle through elements in Vector.

Returns:

an Enumeration of all the objects in the Vector

addElement

public void addElement(Object aObj)

capacity

public int capacity()

clear

public void clear()

elementAt

public Object elementAt(int aIndex)

ensureCapacity

public void ensureCapacity(int minCapacity)

equals

public boolean equals(Object aObj)

Overrides:

equals in class Object

indexOf

public int indexOf(Object aObj)

indexOf

public int indexOf(Object aObj,
                   int aIndex)

insertElementAt

public void insertElementAt(Object aObj,
                            int aIndex)

isEmpty

public boolean isEmpty()

lastIndexOf

public int lastIndexOf(Object anObject)

delivers the index of the last occurrence of the object

Parameters:

anObject - the object

Returns:

the index of the last occurrence of the object or -1, if object is not found

lastIndexOf

public int lastIndexOf(Object anObject,
                       int anIndex)
                throws ArrayIndexOutOfBoundsException

delivers the index of the last occurrence of the object starting from some index

Parameters:

anObject - the object

anIndex - the starting index

Returns:

the index of the last occurrence of the object or -1, if object is not found

Throws:

ArrayIndexOutOfBoundsException

removeAllElements

public void removeAllElements()

removeElement

public boolean removeElement(Object aObj)

removeElementAt

public void removeElementAt(int aIndex)

setElementAt

public void setElementAt(Object aObj,
                         int aIndex)

setSize

public void setSize(int aSize)

size

public int size()

toArray

public Object[] toArray()

trimToSize

public void trimToSize()