private void testListIterator(List <DSInteger> the_list)
{
ListIterator <DSInteger> it = the_list.listIterator();
int count = 0;
while (it.hasNext())
{
count++;
it.next();
}
//you are at the last item, not one before the first item when the
//initial loop begins
count--;
while (it.hasPrevious())
{
count--;
it.previous();
}
Assert.AreEqual(0, count);
//test values returned
it = the_list.listIterator();
Assert.AreEqual(30, it.next().value);
Assert.AreEqual(60, it.next().value);
//test removal
DSInteger removed = it.remove();
Assert.AreEqual(60, removed.value);
Assert.AreEqual(90, it.next().value);
it.next(); //120
it.next(); //150
//test removing the last item
Assert.AreEqual(false, it.hasNext());
Assert.AreEqual(150, it.remove().value);
Assert.AreEqual(false, it.hasNext());
Assert.AreEqual(90, it.previous().value);
Assert.AreEqual(true, it.hasNext());
Assert.AreEqual(120, it.next().value);
//test removing the first item
the_list.clear();
addInitialItems(the_list);
it = the_list.listIterator();
Assert.AreEqual(false, it.hasPrevious());
Assert.AreEqual(30, it.next().value);
it.remove();
Assert.AreEqual(false, it.hasPrevious());
Assert.AreEqual(60, it.next().value);
Assert.AreEqual(90, it.next().value);
Assert.AreEqual(60, it.previous().value);
Assert.AreEqual(false, it.hasPrevious());
}
//public abstract ListIterator<E> listIterator(int location);
public override E remove(int location)
{
try {
ListIterator <E> it = listIterator(location);
E result = it.next();
it.remove();
return(result);
} catch (NoSuchElementException) {
throw new java.lang.IndexOutOfBoundsException();
}
}
internal virtual void optimize()
{
for (int i = 0; i < this.arcList.size(); i++)
{
GrammarArc grammarArc = (GrammarArc)this.arcList.get(i);
this.arcList.set(i, this.optimizeArc(grammarArc));
}
if (this.isEmpty())
{
ListIterator listIterator = this.arcList.listIterator();
while (listIterator.hasNext())
{
GrammarArc grammarArc = (GrammarArc)listIterator.next();
if (this == grammarArc.getGrammarNode())
{
listIterator.remove();
}
}
}
}
public void remove()
{
iterator.remove();
subList.sizeChanged(false);
end--;
}
