net.datastructures
Class ElementIterator<E>

java.lang.Object
  net.datastructures.ElementIterator<E>

All Implemented Interfaces:

java.util.Iterator<E>

public class ElementIterator<E>
extends java.lang.Object
implements java.util.Iterator<E>

A simple iterator class for lists. The elements of a list are returned by this iterator. No copy of the list is made, so any changes to the list are reflected in the iterator.

Author:

Michael Goodrich, Eric Zamore, Roberto Tamassia

Constructor Summary

ElementIterator(PositionList<E> L)
Creates an element iterator over the given list.

Method Summary

boolean	hasNext() Returns whether the iterator has a next object.
E	next() Returns the next object in the iterator.
void	remove() Throws an UnsupportedOperationException in all cases, because removal is not a supported operation in this iterator.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ElementIterator

public ElementIterator(PositionList<E> L)

Creates an element iterator over the given list.

Method Detail

hasNext

public boolean hasNext()

Returns whether the iterator has a next object.

Specified by:

hasNext in interface java.util.Iterator<E>

next

public E next()
       throws java.util.NoSuchElementException

Returns the next object in the iterator.

Specified by:

next in interface java.util.Iterator<E>

Throws:

java.util.NoSuchElementException

remove

public void remove()
            throws java.lang.UnsupportedOperationException

Throws an UnsupportedOperationException in all cases, because removal is not a supported operation in this iterator.

Specified by:

remove in interface java.util.Iterator<E>

Throws:

java.lang.UnsupportedOperationException