import java.awt.Frame;
import java.awt.Panel;
import java.awt.TextField;
import java.awt.Choice;
import java.awt.List;
import java.awt.Label;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.event.ActionListener;
import java.awt.event.ItemListener;
import java.awt.event.WindowListener;
import java.awt.event.ActionEvent;
import java.awt.event.WindowEvent;
import java.awt.event.ItemEvent;

public class FindActor extends Frame
  implements ActionListener, ItemListener, WindowListener {

  public static void main(String args[]){
    new FindActor();
  }

  private TextField firstNames, lastName;
  private Choice store;
  private List moviesDisplay;
  private FindActorController controller = new FindActorController();

  private FindActor(){
    setTitle("Find in-stock movies with actor");
    setLayout(new BorderLayout());
    addWindowListener(this);
    moviesDisplay = new List();
    add(moviesDisplay, "Center");
    Panel p = new Panel();
    p.setLayout(new FlowLayout());
    p.add(new Label("Actor's first name(s):", Label.RIGHT));
    firstNames = new TextField(20);
    firstNames.addActionListener(this);
    p.add(firstNames);
    p.add(new Label("Last name:", Label.RIGHT));
    lastName = new TextField(20);
    lastName.addActionListener(this);
    p.add(lastName);
    p.add(new Label("Store:", Label.RIGHT));
    store = new Choice();
    store.add("St. Peter");
    store.add("Mankato");
    store.addItemListener(this);
    p.add(store);
    add(p, "North");
    setSize(800,250);
    show();
  }

  public void windowActivated(WindowEvent evt){}
  public void windowClosed(WindowEvent evt){}
  public void windowDeactivated(WindowEvent evt){}
  public void windowDeiconified(WindowEvent evt){}
  public void windowIconified(WindowEvent evt){}
  public void windowOpened(WindowEvent evt){}

  public void windowClosing(WindowEvent evt){
    System.exit(0);
  }

  public void actionPerformed(ActionEvent evt){
    updateResults();
  }

  public void itemStateChanged(ItemEvent evt){
    updateResults();
  }

  private void updateResults(){
    moviesDisplay.removeAll();
    String[] movieNames = controller.getMovies
      (firstNames.getText(), lastName.getText(), store.getSelectedItem());
    for(int i = 0; i < movieNames.length; i++){
      moviesDisplay.add(movieNames[i]);
    }
  }
}

class FindActorController {

    FindActorController() {
        // Empty constructor for now:
        // current "dummy" version has nothing to initialize,
        // but a real version might establish a database connection,
        // prepare a statement, etc.
    }

    String[] getMovies(String firstNames, String lastName, String storeName){
        // retrieve the relevant movies from the database and
        //  return an array of Strings containing them; below
        //  sample code shows an easy way to make the array without
        //  knowing in advance how big it is going to be
        java.util.Vector v = new java.util.Vector();
        v.addElement("Sample Movie 1"); // instead of these two lines, loop
        v.addElement("Sample Movie 2"); // adding each query result to v
        String[] array = new String[v.size()];
        v.copyInto(array);
        return array;
    }
}