Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;

import javax.swing.JComboBox;
import javax.swing.JFrame;

public class Main {
    public static void main(String[] args) {
        JComboBox<String> box = new JComboBox<>();
        box.addItem("One");
        box.addItem("Two");
        box.addItem("Three");

        box.addItemListener(new ItemListener() {
            public void itemStateChanged(ItemEvent e) {
                if (e.getStateChange() == ItemEvent.SELECTED) {
                    System.out.println(e.getItem());
                }
            }
        });
        JFrame frame = new JFrame();
        frame.getContentPane().add(box);
        frame.pack();
        frame.setVisible(true);
    }
}