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.