JComboBox: addItemListener(ItemListener lis) Example

JComboBox: addItemListener(ItemListener lis) Example

public class JComboBox extends JComponent  and implements ItemSelectable, ListDataListener, ActionListener, Accessible,ItemListener.Below code shows how to implement JComboBox ItemListener.

How to Implement JComboBox: addItemListener(ItemListener lis)

[

import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.UIManager;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.ItemSelectable;
public class JComboBoxExample extends JFrame implements ItemListener {
    public   JComboBox box;


    JComboBoxExample()
    {
        super("JComboBox Example");
        try        {
            UIManager.setLookAndFeel
                    ("com.sun.java.swing.plaf.windows.WindowsClassicLookAndFeel");
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }


        String languages []={"Kenya","Somalia","Rwanda",
                "Tanzania","South Africa","Namibia","Nigeria"};

        box=new JComboBox(languages);
        box.setBounds(50,80,150,20);

        add(box);
        box.addItemListener(this);

        setSize(400,400);
        setLayout(null);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setVisible(true);

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

    }
    public void itemStateChanged(ItemEvent event)
    {
        int state=event.getStateChange();
        System.out.println("Item Selected is "+event.getItem());


    }



}

]

See also:

Java JComboBox with ActionListener Example