import java.util.Set;
import jexer.backend.Screen;
-import jexer.bits.Cell;
import jexer.bits.CellAttributes;
import jexer.bits.GraphicsChars;
import jexer.event.TCommandEvent;
* Close window. Note that windows without a close box can still be
* closed by calling the close() method.
*/
+ @Override
public void close() {
application.closeWindow(this);
}