Class StackSecondary<T>

java.lang.Object

components.stack.StackSecondary<T>

Type Parameters:

T - type of Stack entries

All Implemented Interfaces:

Stack<T>, StackKernel<T>, Standard<Stack<T>>, Iterable<T>

Direct Known Subclasses:

Stack1L, Stack2, Stack3

public abstract class StackSecondary<T>
extends Object
implements Stack<T>

Layered implementations of secondary methods for Stack.

Execution-time performance of flip implemented in this class is O(| this|).

Constructor Summary

Constructors

Constructor	Description
StackSecondary()

Method Summary

Modifier and Type	Method	Description
final boolean	equals(Object obj)
void	flip()	Reverses ("flips") this.
int	hashCode()
T	replaceTop(T x)	Replaces the top of this with x, and returns the old top.
T	top()	Reports the top of this.
String	toString()

Methods inherited from class Object

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

Methods inherited from interface Iterable

forEach, iterator, spliterator

Methods inherited from interface StackKernel

length, pop, push

Methods inherited from interface Standard

clear, newInstance, transferFrom

Constructor Details

StackSecondary

public StackSecondary()

Method Details

equals

public final boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

top

public T top()

Description copied from interface: Stack

Reports the top of this.

Specified by:

top in interface Stack<T>

Returns:

the top entry of this

replaceTop

public T replaceTop(T x)

Description copied from interface: Stack

Replaces the top of this with x, and returns the old top.

Specified by:

replaceTop in interface Stack<T>

Parameters:

x - the new top entry

Returns:

the old top entry

flip

public void flip()

Description copied from interface: Stack

Reverses ("flips") this.

Specified by:

flip in interface Stack<T>