public void set(Byte o) {
if (hasPrevious()) {
m_array.set(m_index, o);
}
}
public Byte previous() {
if (!hasPrevious()) throw new NoSuchElementException();
return m_array.get(m_index--);
}
public boolean hasNext() {
return nextIndex() < m_array.size();
}
public Byte next() {
if (!hasNext()) throw new NoSuchElementException();
return m_array.get(++m_index);
}
public void undo() {
m_bytes.m_bytes = m_old;
}