Main.java Source code

Introduction

Here is the source code for Main.java

Source

import javax.swing.JComboBox;
import javax.swing.event.PopupMenuEvent;
import javax.swing.event.PopupMenuListener;

public class Main {
    public static void main(String[] argv) throws Exception {
        String[] items = { "item1", "item2" };
        JComboBox cb = new JComboBox(items);
        cb.setEditable(true);

        MyPopupMenuListener actionListener = new MyPopupMenuListener();
        cb.addPopupMenuListener(actionListener);
    }
}

class MyPopupMenuListener implements PopupMenuListener {
    public void popupMenuWillBecomeVisible(PopupMenuEvent evt) {
        JComboBox cb = (JComboBox) evt.getSource();
    }

    public void popupMenuWillBecomeInvisible(PopupMenuEvent evt) {
        JComboBox cb = (JComboBox) evt.getSource();
    }

    public void popupMenuCanceled(PopupMenuEvent evt) {
        JComboBox cb = (JComboBox) evt.getSource();
    }
}