We would like to know how to fill enum to JComboBox.
import java.awt.Color; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.ArrayList; import java.util.List; /*from w w w . j av a2 s .c o m*/ import javax.swing.BorderFactory; import javax.swing.DefaultComboBoxModel; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; public class Main extends JPanel { String SIGNAL = "Signal"; private List<JComboBox<ComboColor>> comboList = new ArrayList<>(); public Main() { setLayout(new GridLayout(0, 1)); DefaultComboBoxModel<ComboColor> cModel = new DefaultComboBoxModel<>( ComboColor.values()); JComboBox<ComboColor> combo = new JComboBox<>(cModel); add(createComboLabelPanel(1, combo)); comboList.add(combo); } private JPanel createComboLabelPanel(int index, JComboBox<ComboColor> combo) { JPanel panel = new JPanel(); JLabel label = new JLabel(SIGNAL + " " + index); label.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5)); label.setOpaque(true); combo.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent evt) { ComboColor cColor = (ComboColor) combo.getSelectedItem(); label.setBackground(cColor.getColor()); } }); panel.add(label); panel.add(combo); return panel; } public static void main(String[] args) { Main mainPanel = new Main(); JFrame f = new JFrame(); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.getContentPane().add(mainPanel); f.pack(); f.setLocationByPlatform(true); f.setVisible(true); } } enum ComboColor { RED("Red", Color.RED), GREEN("Green", Color.GREEN); private String text; private Color color; public String getText() { return text; } public Color getColor() { return color; } private ComboColor(String text, Color color) { this.text = text; this.color = color; } @Override public String toString() { return text; } }