Class Stack<E>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<E>

java.util.ArrayList<E>

coneforest.psylla.runtime.Stack<E>

Type Parameters:

E - a type of an element.

All Implemented Interfaces:

Serializable, Cloneable, Iterable<E>, Collection<E>, List<E>, RandomAccess, SequencedCollection<E>

Direct Known Subclasses:

DictStack, ExecutionStack, OperandStack, ProcStack

public class Stack<E>
extends ArrayList<E>

Base class for interpreter’s stacks.

See Also:

• Serialized Form

Constructor Summary

Constructors

Modifier	Constructor	Description
<E>	Stack()	Constructs an empty stack with an initial capacity of ten.

Method Summary

Modifier and Type	Method	Description
E	peek()	Returns the topmost of this stack without popping it.
E	pop()	Pops and returns the topmost element of this stack.
void	push(E element)	Pushes an element to this stack.
void	setSize(int size)	Truncate this stack to the specified size.

Methods inherited from class ArrayList

add, add, addAll, addAll, addFirst, addLast, clear, clone, contains, ensureCapacity, equals, forEach, get, getFirst, getLast, hashCode, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, removeFirst, removeIf, removeLast, replaceAll, retainAll, set, size, sort, spliterator, subList, toArray, toArray, trimToSize

Methods inherited from class AbstractCollection

containsAll, toString

Methods inherited from class Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface Collection

parallelStream, stream, toArray

Methods inherited from interface List

containsAll, reversed

Constructor Details

Stack

public <E> Stack()

Constructs an empty stack with an initial capacity of ten.

Type Parameters:

E - a type of an element.

Method Details

pop

public E pop()

Pops and returns the topmost element of this stack.

Returns:

an element popped.

peek

public E peek()

Returns the topmost of this stack without popping it.

Returns:

the topmost of this stack without popping it

push

public void push(E element)

Pushes an element to this stack.

Parameters:

element - an element.

setSize

public void setSize(int size)

Truncate this stack to the specified size.

Parameters:

size - the size.