EditComboBox.java Source code

Introduction

Here is the source code for EditComboBox.java

Source

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

public class EditComboBox {
    public static void main(String args[]) {
        String labels[] = { "A", "B", "C", "D", "E", "F", "G", "H", "I", "J" };
        JFrame frame = new JFrame("Editable JComboBox");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        Container contentPane = frame.getContentPane();

        final JComboBox comboBox = new JComboBox(labels);
        comboBox.setMaximumRowCount(5);
        comboBox.setEditable(true);
        contentPane.add(comboBox, BorderLayout.NORTH);

        final JTextArea textArea = new JTextArea();
        JScrollPane scrollPane = new JScrollPane(textArea);
        contentPane.add(scrollPane, BorderLayout.CENTER);

        ActionListener actionListener = new ActionListener() {
            public void actionPerformed(ActionEvent actionEvent) {
                textArea.append("Selected: " + comboBox.getSelectedItem());
                textArea.append(", Position: " + comboBox.getSelectedIndex());
                textArea.append(System.getProperty("line.separator"));
            }
        };
        comboBox.addActionListener(actionListener);

        frame.setSize(300, 200);
        frame.setVisible(true);
    }
}