Summary: Inherited Fields | Ctors | Methods | Inherited Methods | [Expand All]

public class

Stack

extends Vector<E>

java.lang.Object
↳	java.util.AbstractCollection<E>
	↳	java.util.AbstractList<E>
		↳	java.util.Vector<E>
			↳	java.util.Stack<E>

Class Overview

Stack is a Last-In/First-Out(LIFO) data structure which represents a stack of objects. It enables users to pop and push onto the stack, including null objects. There is no limit to the size of the stack

Summary

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Inherited Fields

From class java.util.Vector

From class java.util.AbstractList

Public Constructors
	Stack() Constructs a stack with the default size of `Vector`.

Public Methods
boolean	empty() Determines if the stack is empty or not.
synchronized E	peek() Returns the element at the top of the stack without removing it.
synchronized E	pop() Returns the element at the top of the stack and removes it.
synchronized E	push(E object) Pushes the object from the parameter onto the top of the stack.
synchronized int	search(Object o) Returns the index of the first occurrence of the object.

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Inherited Methods

From class java.util.Vector

void	add(int location, E object) Adds the specified object into this Vector at the specified location.
boolean	add(E object) Adds the specified object at the end of this Vector.
synchronized boolean	addAll(int location, Collection<? extends E> collection) Inserts the objects in the specified Collection at the specified location in this Vector.
synchronized boolean	addAll(Collection<? extends E> collection) Adds the objects in the specified Collection to the end of this Vector.
synchronized void	addElement(E object) Adds the specified object at the end of this Vector.
synchronized int	capacity() Returns the number of elements this Vector can hold without growing.
void	clear() Removes all elements from this Vector, leaving it empty.
synchronized Object	clone() Returns a new Vector with the same elements, size, capacity and capacity increment as this Vector.
boolean	contains(Object object) Searches this Vector for the specified object.
synchronized boolean	containsAll(Collection<?> collection) Searches this Vector for all objects in the specified Collection.
synchronized void	copyInto(Object[] elements) Attempts to copy elements contained by this `Vector` into the corresponding elements of the supplied `Object` array.
synchronized E	elementAt(int location) Returns the element at the specified location in this Vector.
Enumeration<E>	elements() Returns an Enumeration on the elements of this Vector.
synchronized void	ensureCapacity(int minimumCapacity) Ensures that this Vector can hold the specified number of elements without growing.
synchronized boolean	equals(Object object) Compares the specified object to this Vector and answer if they are equal.
synchronized E	firstElement() Returns the first element in this Vector.
synchronized E	get(int location) Returns the element at the specified location in this Vector.
synchronized int	hashCode() Returns an integer hash code for the receiver.
int	indexOf(Object object) Searches in this Vector for the index of the specified object.
synchronized int	indexOf(Object object, int location) Searches in this Vector for the index of the specified object.
synchronized void	insertElementAt(E object, int location) Inserts the specified object into this Vector at the specified location.
synchronized boolean	isEmpty() Returns if this Vector has no elements, a size of zero.
synchronized E	lastElement() Returns the last element in this Vector.
synchronized int	lastIndexOf(Object object, int location) Searches in this Vector for the index of the specified object.
synchronized int	lastIndexOf(Object object) Searches in this Vector for the index of the specified object.
synchronized E	remove(int location) Removes the object at the specified location from this List.
boolean	remove(Object object) Removes the first occurrence, starting at the beginning and moving towards the end, of the specified object from this Vector.
synchronized boolean	removeAll(Collection<?> collection) Removes all occurrences in this Vector of each object in the specified Collection.
synchronized void	removeAllElements() Removes all elements from this Vector, leaving the size zero and the capacity unchanged.
synchronized boolean	removeElement(Object object) Removes the first occurrence, starting at the beginning and moving towards the end, of the specified object from this Vector.
synchronized void	removeElementAt(int location) Removes the element found at index position `location` from this `Vector` and decrements the size accordingly.
void	removeRange(int start, int end) Removes the objects in the specified range from the start to the, but not including, end index.
synchronized boolean	retainAll(Collection<?> collection) Removes all objects from this Vector that are not contained in the specified Collection.
synchronized E	set(int location, E object) Replaces the element at the specified location in this Vector with the specified object.
synchronized void	setElementAt(E object, int location) Replaces the element at the specified location in this Vector with the specified object.
synchronized void	setSize(int length) Sets the size of this Vector to the specified size.
synchronized int	size() Returns the number of elements in this Vector.
synchronized List<E>	subList(int start, int end) Returns a List of the specified portion of this Vector from the start index to one less than the end index.
synchronized <T> T[]	toArray(T[] contents) Returns an array containing all elements contained in this Vector.
synchronized Object[]	toArray() Returns a new array containing all elements contained in this Vector.
synchronized String	toString() Returns the string representation of this Vector.
synchronized void	trimToSize() Sets the capacity of this Vector to be the same as the size.

From class java.util.AbstractList

void	add(int location, E object) Inserts the specified object into this List at the specified location.
boolean	add(E object) Adds the specified object at the end of this List.
boolean	addAll(int location, Collection<? extends E> collection) Inserts the objects in the specified Collection at the specified location in this List.
void	clear() Removes all elements from this List, leaving it empty.
boolean	equals(Object object) Compares the specified object to this List and answer if they are equal.
abstract E	get(int location) Returns the element at the specified location in this List.
int	hashCode() Returns an integer hash code for the receiver.
int	indexOf(Object object) Searches this List for the specified object and returns the index of the first occurrence.
Iterator<E>	iterator() Returns an Iterator on the elements of this List.
int	lastIndexOf(Object object) Searches this List for the specified object and returns the index of the last occurrence.
ListIterator<E>	listIterator() Returns a ListIterator on the elements of this List.
ListIterator<E>	listIterator(int location) Returns a ListIterator on the elements of this List.
E	remove(int location) Removes the object at the specified location from this List.
void	removeRange(int start, int end) Removes the objects in the specified range from the start to the, but not including, end index.
E	set(int location, E object) Replaces the element at the specified location in this List with the specified object.
List<E>	subList(int start, int end) Returns a part of consecutive elements of this list as a view.

From class java.util.AbstractCollection

boolean	add(E object) If the specified element is not contained within this collection, and addition of this element succeeds, then true will be returned.
boolean	addAll(Collection<? extends E> collection) Adds the objects in the specified Collection to this Collection.
void	clear() Removes all the elements in this collection.
boolean	contains(Object object) Searches this Collection for the specified object.
boolean	containsAll(Collection<?> collection) Searches this Collection for all objects in the specified Collection.
boolean	isEmpty() Returns true if the collection has no element, otherwise false.
abstract Iterator<E>	iterator() Returns an Iterator on the elements of this Collection.
boolean	remove(Object object) Removes the first occurrence of the specified object from this Collection.
boolean	removeAll(Collection<?> collection) Removes all occurrences in this Collection of each object in the specified Collection.
boolean	retainAll(Collection<?> collection) Removes all objects from this Collection that are not contained in the specified Collection.
abstract int	size() Returns the number of elements in this Collection.
<T> T[]	toArray(T[] contents) Returns an array containing all elements contained in this Collection.
Object[]	toArray() Returns a new array containing all elements contained in this Collection.
String	toString() Returns the string representation of this Collection.

From class java.lang.Object

Object	clone() Returns a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
boolean	equals(Object o) Compares the argument to the receiver, and returns true if they represent the same object using a class specific comparison.
void	finalize() Called by the virtual machine when there are no longer any (non-weak) references to the receiver.
final Class<? extends Object>	getClass() Returns the unique instance of java.lang.Class which represents the class of the receiver.
int	hashCode() Returns an integer hash code for the receiver.
final void	notify() Causes one thread which is `wait` ing on the receiver to be made ready to run.
final void	notifyAll() Causes all threads which are `wait` ing on the receiver to be made ready to run.
String	toString() Returns a string containing a concise, human-readable description of the receiver.
final void	wait(long time, int frac) Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by `notify` or `notifyAll`) or the expiration of the timeout.
final void	wait(long time) Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by `notify` or `notifyAll`) or the expiration of the timeout.
final void	wait() Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by `notify` or `notifyAll`).

From interface java.lang.Iterable

From interface java.util.Collection

abstract boolean	add(E object) Attempts to add `object` to the contents of this `Collection`.
abstract boolean	addAll(Collection<? extends E> collection) Attempts to add all of the objects contained in `collection` to the contents of this collection.
abstract void	clear() Removes all elements from this Collection, leaving it empty.
abstract boolean	contains(Object object) Searches this Collection for the specified object.
abstract boolean	containsAll(Collection<?> collection) Searches this Collection for all objects in the specified Collection.
abstract boolean	equals(Object object) Compares the argument to the receiver, and returns true if they represent the same object using a class specific comparison.
abstract int	hashCode() Returns an integer hash code for the receiver.
abstract boolean	isEmpty() Returns if this Collection has no elements, a size of zero.
abstract Iterator<E>	iterator() Returns an instance of Iterator that may be used to access the objects contained by this collection.
abstract boolean	remove(Object object) Removes the first occurrence of the specified object from this Collection.
abstract boolean	removeAll(Collection<?> collection) Removes all occurrences in this Collection of each object in the specified Collection.
abstract boolean	retainAll(Collection<?> collection) Removes all objects from this Collection that are not also found in the contents of `collection`.
abstract int	size() Returns a count of how many objects are contained by this collection.
abstract <T> T[]	toArray(T[] array) Returns an array containing all elements contained in this Collection.
abstract Object[]	toArray() Returns a new array containing all elements contained in this Collection.

From interface java.util.List

abstract void	add(int location, E object) Inserts the specified object into this Vector at the specified location.
abstract boolean	add(E object) Adds the specified object at the end of this List.
abstract boolean	addAll(int location, Collection<? extends E> collection) Inserts the objects in the specified Collection at the specified location in this List.
abstract boolean	addAll(Collection<? extends E> collection) Adds the objects in the specified Collection to the end of this List.
abstract void	clear() Removes all elements from this List, leaving it empty.
abstract boolean	contains(Object object) Searches this List for the specified object.
abstract boolean	containsAll(Collection<?> collection) Searches this List for all objects in the specified Collection.
abstract boolean	equals(Object object) Compares the argument to the receiver, and returns true if they represent the same object using a class specific comparison.
abstract E	get(int location) Returns the element at the specified location in this List.
abstract int	hashCode() Returns an integer hash code for the receiver.
abstract int	indexOf(Object object) Searches this List for the specified object and returns the index of the first occurrence.
abstract boolean	isEmpty() Returns if this List has no elements, a size of zero.
abstract Iterator<E>	iterator() Returns an Iterator on the elements of this List.
abstract int	lastIndexOf(Object object) Searches this List for the specified object and returns the index of the last occurrence.
abstract ListIterator<E>	listIterator() Returns a ListIterator on the elements of this List.
abstract ListIterator<E>	listIterator(int location) Returns a ListIterator on the elements of this List.
abstract E	remove(int location) Removes the object at the specified location from this List.
abstract boolean	remove(Object object) Removes the first occurrence of the specified object from this List.
abstract boolean	removeAll(Collection<?> collection) Removes all occurrences in this List of each object in the specified Collection.
abstract boolean	retainAll(Collection<?> collection) Removes all objects from this List that are not contained in the specified Collection.
abstract E	set(int location, E object) Replaces the element at the specified location in this List with the specified object.
abstract int	size() Returns the number of elements in this List.
abstract List<E>	subList(int start, int end) Returns a List of the specified portion of this List from the start index to one less than the end index.
abstract <T> T[]	toArray(T[] array) Returns an array containing all elements contained in this List.
abstract Object[]	toArray() Returns an array containing all elements contained in this List.

Public Constructors

public Stack ()

Constructs a stack with the default size of Vector.

Public Methods

public boolean empty ()

Determines if the stack is empty or not.

Returns

true if the stack is empty, false otherwise

public synchronized E peek ()

Returns the element at the top of the stack without removing it.

Returns

the element at the top of the Stack

Throws

EmptyStackException	when empty() is true

public synchronized E pop ()

Returns the element at the top of the stack and removes it.

Returns

the element at the top of the stack.

Throws

EmptyStackException	when empty() is true

public synchronized E push (E object)

Pushes the object from the parameter onto the top of the stack.

Parameters

object	The object to be added to the stack

Returns

the object argument

public synchronized int search (Object o)

Returns the index of the first occurrence of the object.

Parameters

o	the object to be searched

Returns

the index of the first occurrence of the object

Jan	FEB	Mar
	18
2008	2009	2010

Interfaces

Classes

Enums

Exceptions

Stack

Class Overview

Summary

Public Constructors

public Stack ()

Public Methods

public boolean empty ()

Returns

public synchronized E peek ()

Returns

Throws

See Also

public synchronized E pop ()

Returns

Throws

See Also

public synchronized E push (E object)

Parameters

Returns

See Also

public synchronized int search (Object o)

Parameters

Returns