oracle.javatools.parser.util

Class SimpleStack

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<E>

java.util.ArrayList

oracle.javatools.parser.util.SimpleStack

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.lang.Iterable, java.util.Collection, java.util.List, java.util.RandomAccess

public class SimpleStack
extends java.util.ArrayList

SimpleStack is an unsynchronized stack container based off of ArrayList. This is useful since java.util.Stack is based off of Vector and thus carries the performance cost of synchronization.

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

Constructors

Constructor and Description
SimpleStack() Constructs an empty list.
SimpleStack(java.util.Collection c) Constructs a stack containing the elements of the specified collection, pushed in the order they are returned by the collection's iterator.
SimpleStack(int initialCapacity) Constructs an empty stack with the specified initial capacity.

Method Summary

Modifier and Type	Method and Description
java.lang.Object	peek() Retrieves the object at the top of the stack without removing it.
java.lang.Object	pop() Pops the object off the top of the stack.
void	push(java.lang.Object o) Pushes the object onto the top of the stack by appending it to the end of this list.

Methods inherited from class java.util.ArrayList

add, add, addAll, addAll, clear, clone, contains, ensureCapacity, forEach, get, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, removeIf, removeRange, replaceAll, retainAll, set, size, sort, spliterator, subList, toArray, toArray, trimToSize

Methods inherited from class java.util.AbstractList

equals, hashCode

Methods inherited from class java.util.AbstractCollection

containsAll, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.List

containsAll, equals, hashCode

Methods inherited from interface java.util.Collection

parallelStream, stream

Constructor Detail

SimpleStack

public SimpleStack()

Constructs an empty list.

SimpleStack

public SimpleStack(java.util.Collection c)

Constructs a stack containing the elements of the specified collection, pushed in the order they are returned by the collection's iterator.

SimpleStack

public SimpleStack(int initialCapacity)

Constructs an empty stack with the specified initial capacity.

Method Detail

pop

public java.lang.Object pop()

Pops the object off the top of the stack.

Returns:

the Object popped from the stack

push

public void push(java.lang.Object o)

Pushes the object onto the top of the stack by appending it to the end of this list.

Parameters:

o - the Object to be pushed.

peek

public java.lang.Object peek()

Retrieves the object at the top of the stack without removing it.

Returns:

Object at the top of the stack.