Constants.GROUP_SEPARATOR = sep;
public void setGroupSeparator(char sep) {	if (!grouping)		if (Constants.GROUP_SEPARATOR=='\0')			return;		else			sep = '\0';		prefs.putInt("GroupSeparator", (int)(Constants.GROUP_SEPARATOR));	Constants.GROUP_SEPARATOR = sep;	sync();	if (grouping && Constants.GROUP_SEPARATOR=='\0')		setGrouping(false);}