ArrayListComboBoxModel Demo

  
import java.awt.BorderLayout;
import java.awt.Container;
import java.util.ArrayList;
import java.util.Collection;

import javax.swing.AbstractListModel;
import javax.swing.ComboBoxModel;
import javax.swing.JComboBox;
import javax.swing.JFrame;

public class ArrayListComboBoxModel extends AbstractListModel implements
    ComboBoxModel {
  private Object selectedItem;

  private ArrayList anArrayList;

  public ArrayListComboBoxModel(ArrayList arrayList) {
    anArrayList = arrayList;
  }

  public Object getSelectedItem() {
    return selectedItem;
  }

  public void setSelectedItem(Object newValue) {
    selectedItem = newValue;
  }

  public int getSize() {
    return anArrayList.size();
  }

  public Object getElementAt(int i) {
    return anArrayList.get(i);
  }

  public static void main(String args[]) {
    JFrame frame = new JFrame("ArrayListComboBoxModel");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    Collection col = System.getProperties().values();
    ArrayList arrayList = new ArrayList(col);
    ArrayListComboBoxModel model = new ArrayListComboBoxModel(arrayList);

    JComboBox comboBox = new JComboBox(model);

    Container contentPane = frame.getContentPane();
    contentPane.add(comboBox, BorderLayout.NORTH);
    frame.setSize(300, 225);
    frame.setVisible(true);
  }
}

Related examples in the same category

1.	Combobox combines a button or editable field and a drop-down list.
2.	Using drop-down lists
3.	A fancy example of JComboBox with a custom renderer and editor
4.	Editable ComboBox
5.	Create a simple combobox
6.	Font Chooser ComboBox
7.	Color combobox renderer
8.	Select the combobox by choose the nearby label
9.	ComoboBox loads and saves items automatically from a file
10.	Sharing a Model between a JList and JComboBox
11.	ComboBox Demo 2
12.	Custom ComboBox with Image
13.	ComboBox Demo
14.	List: Shared Data Sample
15.	Selecting Combo Sample
16.	MultiKey Combo
17.	PopupCombo Sample
18.	Dual Sample: JList and ComboBox
19.	ComboBox Sample
20.	Color ComboBox: ComboBoxEditor Demo
21.	Determining When the Menu of a JComboBox Component Is Displayed
22.	Listening for Action Events from a JComboBox Component
23.	Listening for Changes to the Selected Item in a JComboBox Component
24.	Setting the Number of Visible Items in the Menu of a JComboBox Component
25.	Displaying the Menu in a JComboBox Component Using a Keystroke If the Selected Item Is Not Unique
26.	Displaying the Menu in a JComboBox Component Using a Keystroke
27.	Determining If the Menu of a JComboBox Component Is Visible
28.	Selecting an Item in a JComboBox Component with Multiple Keystrokes
29.	Adding and Removing an Item in a JComboBox Component
30.	Add an item after the first item
31.	Add an item to the end of the list
32.	Remove first item
33.	Remove the last item
34.	Remove all items
35.	Getting the Items in a JComboBox Component
36.	Getting and Setting the Selected Item in a JComboBox Component
37.	If the combobox is editable, the new value can be any value
38.	Creating a read-only and editable JComboBox Component
39.	A frame with a sample text label and a combo box for selecting font faces

ArrayListComboBoxModel Demo : ComboBox « Swing JFC « Java

Related examples in the same category