import java.awt.event.ItemListener;
import java.util.Vector;
-import javax.swing.GroupLayout;
-import javax.swing.GroupLayout.Alignment;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import domain.Offer;
import domain.Owner;
import domain.RuralHouse;
-import javax.swing.LayoutStyle.ComponentPlacement;
-import javax.swing.JTextField;
public class DeleteOfferGUI extends JFrame {