JComboBox Get Selected Index In Java Example

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import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

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

public class JavaJComboGetSelectedIndex extends JFrame {

	JComboBox comboBox = new JComboBox();

	public JavaJComboGetSelectedIndex() {
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		comboBox.addItem("Java");
		comboBox.addItem("C++");
		comboBox.addItem("C");

		comboBox.setEditable(true);
		System.out.println("#items=" + comboBox.getItemCount());

		comboBox.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				System.out.println("Selected index=" + comboBox.getSelectedIndex() + " Selected item="
						+ comboBox.getSelectedItem());
			}
		});

		getContentPane().add(comboBox);
		pack();
		setVisible(true);
	}

	public static void main(String arg[]) {
		new JavaJComboGetSelectedIndex();
	}
}
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