/// <summary>
/// Sets the position to getBeginIndex() and returns the character at that
/// position.
/// </summary>
///
/// <returns>the first character in the text, or DONE if the text is empty</returns>
/// <seealso cref="M:IBM.ICU.Impl.UCharacterIteratorWrapper.GetBeginIndex"/>
public virtual char First()
{
// UCharacterIterator always iterates from 0 to length
iterator.SetToStart();
return((char)iterator.Current());
}