Example usage for javax.swing JComboBox JComboBox

Introduction

In this page you can find the example usage for javax.swing JComboBox JComboBox.

Prototype

public JComboBox(Vector<E> items) 

Source Link

Document

Creates a JComboBox that contains the elements in the specified Vector.

Usage

From source file:MainClass.java

public static void main(String args[]) {
    final JFrame frame = new JFrame("Change Look");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    ActionListener actionListener = new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            Object source = actionEvent.getSource();
            String lafClassName = null;
            if (source instanceof JComboBox) {
                JComboBox comboBox = (JComboBox) source;
                lafClassName = (String) comboBox.getSelectedItem();
            } else if (source instanceof JButton) {
                lafClassName = actionEvent.getActionCommand();
            }/*from w  w  w  . j  a v a  2s.  c  o  m*/
            if (lafClassName != null) {
                final String finalLafClassName = lafClassName;
                try {
                    UIManager.setLookAndFeel(finalLafClassName);
                    SwingUtilities.updateComponentTreeUI(frame);
                } catch (Exception exception) {
                    JOptionPane.showMessageDialog(frame, "Can't change look and feel", "Invalid PLAF",
                            JOptionPane.ERROR_MESSAGE);
                }
            }
        }
    };

    UIManager.LookAndFeelInfo looks[] = UIManager.getInstalledLookAndFeels();

    DefaultComboBoxModel model = new DefaultComboBoxModel();
    JComboBox comboBox = new JComboBox(model);

    JPanel panel = new JPanel();

    for (int i = 0, n = looks.length; i < n; i++) {
        JButton button = new JButton(looks[i].getName());
        model.addElement(looks[i].getClassName());
        button.setActionCommand(looks[i].getClassName());
        button.addActionListener(actionListener);
        panel.add(button);
    }

    comboBox.addActionListener(actionListener);

    frame.add(comboBox, BorderLayout.NORTH);
    frame.add(panel, BorderLayout.SOUTH);
    frame.setSize(350, 150);
    frame.setVisible(true);
}

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From source file:ColorComboBox.java

public static void main(String args[]) {
    Color colors[] = { Color.black, Color.blue, Color.cyan, Color.darkGray, Color.gray, Color.green,
            Color.lightGray, Color.magenta, Color.orange, Color.pink, Color.red, Color.white, Color.yellow };
    JFrame frame = new JFrame("Color JComboBox");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container contentPane = frame.getContentPane();

    final JComboBox comboBox = new JComboBox(colors);
    comboBox.setMaximumRowCount(5);//  w  w  w .ja va2 s . c o  m
    comboBox.setEditable(true);
    comboBox.setRenderer(new ColorCellRenderer());
    Color color = (Color) comboBox.getSelectedItem();
    ComboBoxEditor editor = new ColorComboBoxEditor(color);
    comboBox.setEditor(editor);
    contentPane.add(comboBox, BorderLayout.NORTH);

    final JLabel label = new JLabel();
    label.setOpaque(true);
    label.setBackground((Color) comboBox.getSelectedItem());
    contentPane.add(label, BorderLayout.CENTER);

    ActionListener actionListener = new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            Color selectedColor = (Color) comboBox.getSelectedItem();
            label.setBackground(selectedColor);
        }
    };
    comboBox.addActionListener(actionListener);

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

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From source file:ComplexRenderingSample.java

public static void main(String args[]) {

    Object elements[][] = {//w  w  w  .  j  av  a2  s. c o  m
            { new Font("Helvetica", Font.PLAIN, 20), Color.red, new DiamondIcon(Color.blue), "Help" },
            { new Font("TimesRoman", Font.BOLD, 14), Color.blue, new DiamondIcon(Color.green), "Me" },
            { new Font("Courier", Font.ITALIC, 18), Color.green, new DiamondIcon(Color.black), "I'm" },
            { new Font("Helvetica", Font.BOLD | Font.ITALIC, 12), Color.gray, new DiamondIcon(Color.magenta),
                    "Trapped" },
            { new Font("TimesRoman", Font.PLAIN, 32), Color.pink, new DiamondIcon(Color.yellow), "Inside" },
            { new Font("Courier", Font.BOLD, 16), Color.yellow, new DiamondIcon(Color.red), "This" },
            { new Font("Helvetica", Font.ITALIC, 8), Color.darkGray, new DiamondIcon(Color.pink),
                    "Computer" } };

    JFrame frame = new JFrame("Complex Renderer");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container contentPane = frame.getContentPane();

    JList jlist = new JList(elements);
    ListCellRenderer renderer = new ComplexCellRenderer();
    jlist.setCellRenderer(renderer);
    JScrollPane scrollPane = new JScrollPane(jlist);
    contentPane.add(scrollPane, BorderLayout.CENTER);

    JComboBox comboBox = new JComboBox(elements);
    comboBox.setRenderer(renderer);
    contentPane.add(comboBox, BorderLayout.NORTH);

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

---

From source file:ItemTest.java

public static void main(String args[]) {
    JFrame frame = new JFrame();
    Container contentPane = frame.getContentPane();

    ItemListener listener = new ItemListener() {
        public void itemStateChanged(ItemEvent e) {
            System.out.println("Source: " + name(e.getSource()));
            System.out.println("Item: " + name(e.getItem()));
            int state = e.getStateChange();
            System.out.println("State: " + ((state == ItemEvent.SELECTED) ? "Selected" : "Deselected"));
        }//from www.j a  v a  2s. c  om

        private String name(Object o) {
            if (o instanceof JComponent) {
                JComponent comp = (JComponent) o;
                return comp.getName();
            } else {
                return o.toString();
            }
        }
    };

    JPanel panel = new JPanel(new GridLayout(0, 1));
    ButtonGroup group = new ButtonGroup();
    JRadioButton option = new JRadioButton("French Fries", true);
    option.setName(option.getText());
    option.addItemListener(listener);
    group.add(option);
    panel.add(option);
    option = new JRadioButton("Onion Rings", false);
    option.setName(option.getText());
    option.addItemListener(listener);
    group.add(option);
    panel.add(option);
    option = new JRadioButton("Ice Cream", false);
    option.setName(option.getText());
    option.addItemListener(listener);
    group.add(option);
    panel.add(option);
    contentPane.add(panel, BorderLayout.NORTH);

    String flavors[] = { "Item 1", "Item 2", "Item 3" };
    JComboBox jc = new JComboBox(flavors);
    jc.setName("Combo");
    jc.addItemListener(listener);
    jc.setMaximumRowCount(4);
    contentPane.add(jc, BorderLayout.SOUTH);

    frame.pack();
    frame.show();
}

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From source file:ComplexCellRenderer.java

public static void main(String args[]) {
    Object elements[][] = { { new Font("Helvetica", Font.PLAIN, 20), Color.RED, new MyIcon(), "A" },
            { new Font("TimesRoman", Font.BOLD, 14), Color.BLUE, new MyIcon(), "A" },
            { new Font("Courier", Font.ITALIC, 18), Color.GREEN, new MyIcon(), "A" },
            { new Font("Helvetica", Font.BOLD | Font.ITALIC, 12), Color.GRAY, new MyIcon(), "A" },
            { new Font("TimesRoman", Font.PLAIN, 32), Color.PINK, new MyIcon(), "A" },
            { new Font("Courier", Font.BOLD, 16), Color.YELLOW, new MyIcon(), "A" },
            { new Font("Helvetica", Font.ITALIC, 8), Color.DARK_GRAY, new MyIcon(), "A" } };

    JFrame frame = new JFrame("Complex Renderer");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    ListCellRenderer renderer = new ComplexCellRenderer();
    JComboBox comboBox = new JComboBox(elements);
    comboBox.setRenderer(renderer);/*w ww  .  j a  va2  s.c  om*/
    frame.add(comboBox, BorderLayout.NORTH);

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

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From source file:ColorComboBoxEditor.java

public static void main(String args[]) {
    Color colors[] = { Color.RED, Color.BLUE, Color.BLACK, Color.WHITE };
    JFrame frame = new JFrame("Editable JComboBox");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    final JComboBox comboBox = new JComboBox(colors);
    comboBox.setEditable(true);//from   ww  w  .  ja va 2s  . c o  m
    comboBox.setEditor(new ColorComboBoxEditor(Color.RED));
    frame.add(comboBox, BorderLayout.NORTH);

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

---

From source file:ComboTableCellRenderer.java

public static void main(String args[]) {
    Color choices[] = { Color.RED, Color.ORANGE, Color.YELLOW, Color.GREEN, Color.BLUE, Color.MAGENTA };
    ComboTableCellRenderer renderer = new ComboTableCellRenderer();
    JComboBox comboBox = new JComboBox(choices);
    comboBox.setRenderer(renderer);//w w w .j a v  a2s.  c  o m

    TableCellEditor editor = new DefaultCellEditor(comboBox);

    JFrame frame = new JFrame("Editable Color Table");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    TableModel model = new ColorTableModel();
    JTable table = new JTable(model);
    TableColumn column = table.getColumnModel().getColumn(1);
    column.setCellRenderer(renderer);
    column.setCellEditor(editor);

    JScrollPane scrollPane = new JScrollPane(table);
    frame.add(scrollPane, BorderLayout.CENTER);
    frame.setSize(400, 150);
    frame.setVisible(true);
}

---

From source file:SaveImage.java

public static void main(String s[]) {
    JFrame f = new JFrame("Save Image Sample");
    f.addWindowListener(new WindowAdapter() {
        public void windowClosing(WindowEvent e) {
            System.exit(0);/*from   www . j a v a  2 s . c  o m*/
        }
    });
    SaveImage si = new SaveImage();
    f.add("Center", si);
    JComboBox choices = new JComboBox(si.getDescriptions());
    choices.setActionCommand("SetFilter");
    choices.addActionListener(si);
    JComboBox formats = new JComboBox(si.getFormats());
    formats.setActionCommand("Formats");
    formats.addActionListener(si);
    JPanel panel = new JPanel();
    panel.add(choices);
    panel.add(new JLabel("Save As"));
    panel.add(formats);
    f.add("South", panel);
    f.pack();
    f.setVisible(true);
}

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From source file:Main.java

public static JComponent makeUI() {
    JPanel p = new JPanel();
    p.setBackground(new Color(.5f, .5f, .5f, .5f));
    p.add(new JComboBox<String>(new String[] { "aaa", "bb", "c" }));
    JComboBox c = new JComboBox<String>(new String[] { "aaa", "bb", "c" });
    p.add(c);/*from ww w  . j  a  va  2s  . c  o  m*/
    return p;
}

---

From source file:TableDemoApplet.java

private static void createGUI(Container contentPane) {
    Object[][] rowData = new String[][] { { "98-43", "AraAra! SL" }, { "81-31", "Aragones Transports SA" },
            { "12-72", "Rocca SL" }, { "99-10", "Rodriguez e Hijos SA" }, { "00-65", "Rimbau Motors SL" } };
    JTable table = new JTable(rowData, new String[] { "Part No", "Provider" });

    JComboBox companyComboBox = new JComboBox(new Object[] { "AraAra! SL", "Aragones Transports SA", "Rocca SL",
            "Rodriguez e Hijos SA", "Rimbau Motors SL" });
    companyComboBox.setEditable(true);//from   www  .  j  a va2s  .co  m
    new S15WorkingBackspace(companyComboBox);

    // setup the ComboBoxCellEditor, DefaultCellEditor won't work!
    table.getColumnModel().getColumn(1).setCellEditor(new ComboBoxCellEditor(companyComboBox));

    table.setPreferredScrollableViewportSize(new Dimension(400, 100));
    JScrollPane scrollPane = new JScrollPane(table);

    contentPane.setLayout(new java.awt.FlowLayout());
    contentPane.add(scrollPane);
    contentPane.add(new JTextField("HALLO!"));
}

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