Class Tower

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<E>

java.util.Vector<E>

java.util.Stack<Disk>

Tower

public class Tower
extends java.util.Stack<Disk>

The Tower class is a Stack of Disks. It has one constructor which calls the superclass's constructor. Its two main functionalities in addition to the pop(), peek(), push(), and isEmpty() methods of a Stack are toString(), which prints the each disk in the tower as a line of dashes (number of dashes equals radius of disk of tower being printed. The second functionality is flip(), which returns the flipped version of this tower. In order to do so, it does destroy the current tower. However, for the purposes of ProductionLine the Tower is never needed after the flip() method is used, so there is no need to preserve the Tower.

Author:

AnneMarie Caballero (annemariecabs)

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Fields inherited from class java.util.Vector

capacityIncrement, elementCount, elementData

Constructor Summary

Constructors

Constructor	Description
Tower()	The default constructor for a tower which calls on a Stack's super constructor (creates an empty Stack of Disks)

Method Summary

Modifier and Type	Method	Description
Tower	flip()	Returns a flipped version of this Tower.
java.lang.String	toString()	Returns a String representation of a Tower.

Methods inherited from interface java.util.Collection

parallelStream, stream

Methods inherited from interface java.util.List

of, of, of, of, of, of, of, of, of, of, of, of

Methods inherited from class java.lang.Object

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

Methods inherited from class java.util.Stack

empty, peek, pop, push, search

Methods inherited from class java.util.Vector

add, add, addAll, addAll, addElement, capacity, clear, clone, contains, containsAll, copyInto, elementAt, elements, ensureCapacity, equals, firstElement, forEach, get, hashCode, indexOf, indexOf, insertElementAt, isEmpty, iterator, lastElement, lastIndexOf, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, removeAllElements, removeElement, removeElementAt, removeIf, removeRange, replaceAll, retainAll, set, setElementAt, setSize, size, sort, spliterator, subList, toArray, toArray, trimToSize

Constructor Detail

Tower

public Tower()

The default constructor for a tower which calls on a Stack's super constructor (creates an empty Stack of Disks)

Method Detail

toString

public java.lang.String toString()

Returns a String representation of a Tower. The String representation will have a line of dashes to represent each Disk. For example, a Tower with Disks of radii 3, 4, 7, and 8 in order would have the String representation of:

--- (3)

---- (4)

------- (7)

-------- (8)

Overrides:

toString in class java.util.Vector<Disk>

Returns:

a String with lines of dashes, each line representing a Disk in the tower, the top Disk will be the first line.

flip

public Tower flip()

Returns a flipped version of this Tower. For example, if this Tower had Disks of 7, 6, 5, and 3 radii in order. The flipped version of that Tower would be Disks with radii of 3, 5, 6, and 7.

Returns:

a Tower that is a flipped version of this Tower