How to Use JComboBox in Java Swing

h2>What is JComboBox?

JComboBox is a Java Swing component that lets users choose an item from a drop-down list.

Example Code:

import javax.swing.*;

public class ComboBoxExample {
    public static void main(String[] args) {
        JFrame f = new JFrame("Example");
        String[] items = {"Item1", "Item2", "Item3"};
        JComboBox cb = new JComboBox(items);
        f.add(cb);
        f.setSize(200, 100);
        f.setVisible(true);
    }
}

Conclusion:

This is a simple way to use JComboBox for GUI-based applications in Java.