Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;

import javax.swing.Icon;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class Main extends JPanel implements ItemListener {
    public Main() {
        JComboBox jc = new JComboBox();
        jc.addItem("France");
        jc.addItem("Germany");
        jc.addItem("Italy");
        jc.addItem("Japan");
        jc.addItemListener(this);
        add(jc);

        jc.firePopupMenuWillBecomeVisible();
    }

    public void itemStateChanged(ItemEvent ie) {
        String s = (String) ie.getItem();
        System.out.println(s);
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame();
        frame.getContentPane().add(new Main());

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(200, 200);
        frame.setVisible(true);
    }

}