public boolean isSignificant() {
public boolean isSignificant() { for (int i = edits.size() - 1; i >= 0; i--) if (((UndoableEdit) edits.elementAt(i)).isSignificant()) return true;
	public boolean isSignificant() {		// Variables		int				index;		UndoableEdit	current;		// Check each edit		for (index = 0; index < edits.size(); index++) {			current = (UndoableEdit) edits.elementAt(index);			if (current.isSignificant() == true) {				return true;			}		} // for: index		return false;	} // isSignificant()