ComboBoxes.java



//: c14:ComboBoxes.java
// Użycie list rozwijanych.
// <applet code=ComboBoxes width=200 height=125></applet>
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import com.bruceeckel.swing.*;

public class ComboBoxes extends JApplet {
  private String[] description = {
    "Ograniczony", "Krnąbrny", "Błyskotliwy", 
    "Samolubny", "Nieśmiały", "Zdrowy", "Zgniły" 
  };
  private JTextField t = new JTextField(15);
  private JComboBox c = new JComboBox();
  private JButton b = new JButton("Dodaj elementy");
  private int count = 0;
  public void init() {
    for(int i = 0; i < 4; i++)
      c.addItem(description[count++]);
    t.setEditable(false);
    b.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        if(count < description.length)
          c.addItem(description[count++]);
      }
    });
    c.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        t.setText("indeks: "+ c.getSelectedIndex() + "   " +
         ((JComboBox)e.getSource()).getSelectedItem());
      }
    });
    Container cp = getContentPane();
    cp.setLayout(new FlowLayout());
    cp.add(t);
    cp.add(c);
    cp.add(b);
  }
  public static void main(String[] args) {
    Console.run(new ComboBoxes(), 200, 125);
  }
} ///:~