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:Main.java

public static void main(String args[]) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Properties props = System.getProperties();
    JTree tree = new JTree(props);

    JComboBox comboBox = new JComboBox(new String[] { "A", "B", "C" });
    TreeCellEditor editor = new DefaultCellEditor(comboBox);

    tree.setEditable(true);/* w  ww.j  av  a  2s  .c  om*/
    tree.setCellEditor(editor);

    JScrollPane scrollPane = new JScrollPane(tree);
    frame.add(scrollPane, BorderLayout.CENTER);
    frame.setSize(300, 150);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String args[]) {
    String[] mainData = { "-Select-", "Sel 1", "Sel 2", "Sel 3" };
    String[] subData1 = { "Sub Sel 11", "Sub Sel 12", "Sub Sel 13" };
    String[] subData2 = { "Sub Sel 21", "Sub Sel 22", "Sub Sel 23" };
    String[] subData3 = { "Sub Sel 31", "Sub Sel 32", "Sub Sel 33" };
    DefaultComboBoxModel boxModel = new DefaultComboBoxModel();
    JComboBox box1 = new JComboBox(mainData), box2 = new JComboBox();
    JFrame frame = new JFrame();
    frame.setLayout(new FlowLayout());
    frame.add(box1);//w w  w  .j  a v a 2s .com
    frame.add(box2);
    box2.setVisible(false);
    box2.setModel(boxModel);
    frame.setBounds(200, 200, 500, 200);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);

    box1.addItemListener(e -> {
        box2.setVisible(true);
        boxModel.removeAllElements();
        if (box1.getSelectedIndex() == 0) {
            box2.setVisible(false);
        } else if (box1.getSelectedIndex() == 1) {
            for (String s : subData1) {
                boxModel.addElement(s);
            }
        } else if (box1.getSelectedIndex() == 2) {
            for (String s : subData2) {
                boxModel.addElement(s);
            }
        } else if (box1.getSelectedIndex() == 3) {
            for (String s : subData3) {
                boxModel.addElement(s);
            }
        }
    });
}

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From source file:EditComboBox.java

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);/*from  ww  w .ja v a 2s .c  o  m*/
    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);
}

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From source file:Main.java

public static void main(String[] args) {
    int TIMER_DELAY = 2000;
    String[] data = { "A", "B", "C", "D" };

    DefaultComboBoxModel<String> model = new DefaultComboBoxModel<>(data);

    JComboBox<String> combobox = new JComboBox<>(model);
    JList<String> jlist = new JList<>(model);

    new Timer(TIMER_DELAY, new ActionListener() {
        private int count = 0;

        public void actionPerformed(ActionEvent e) {
            model.addElement("count: " + count);
            count++;//w w w  .j a  v a 2  s.  c o m
        }
    }).start();

    JPanel comboPanel = new JPanel();
    comboPanel.add(combobox);

    JPanel listPanel = new JPanel();
    listPanel.add(new JScrollPane(jlist));

    JPanel panel = new JPanel(new GridLayout(1, 0));
    panel.add(comboPanel);
    panel.add(listPanel);
    panel.setPreferredSize(new Dimension(400, 200));

    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.getContentPane().add(panel);
    f.pack();
    f.setVisible(true);
}

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From source file:Main.java

public static final void main(String[] args) {
    JFrame frame = new JFrame();

    JPanel mainPanel = new JPanel();
    JPanel buttonsPanel = new JPanel();
    frame.add(mainPanel);// w  w w .  j  av  a  2  s.  com
    frame.add(buttonsPanel, BorderLayout.SOUTH);

    String[] options = { "S", "G", "I", "T" };

    JComboBox comboBox = new JComboBox(options);
    comboBox.setRenderer(new MyComboBoxRenderer("COUNTRY"));
    comboBox.setSelectedIndex(-1);
    mainPanel.add(comboBox);

    JButton clearSelectionButton = new JButton("Clear selection");
    clearSelectionButton.addActionListener(e -> {
        comboBox.setSelectedIndex(-1);
    });
    buttonsPanel.add(clearSelectionButton);

    frame.pack();
    frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
}

---

From source file:Main.java

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

    Collection<Object> col = System.getProperties().values();
    ArrayList<Object> arrayList = new ArrayList<Object>(col);
    ArrayListComboBoxModel model = new ArrayListComboBoxModel(arrayList);

    JComboBox comboBox = new JComboBox(model);

    frame.add(comboBox, BorderLayout.NORTH);
    frame.setSize(300, 225);/*from  w ww.ja v a2 s . com*/
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(final String args[]) {
    final String labels[] = { "A", "B", "C", "D", "E" };
    final DefaultComboBoxModel<String> model = new DefaultComboBoxModel<String>(labels);

    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JComboBox<String> comboBox1 = new JComboBox<String>(model);
    comboBox1.setMaximumRowCount(5);//from w w  w.j  av a 2  s  .co  m
    comboBox1.setEditable(true);
    frame.add(comboBox1, BorderLayout.NORTH);

    JList<String> jlist = new JList<String>(model);
    JScrollPane scrollPane = new JScrollPane(jlist);
    frame.add(scrollPane, BorderLayout.CENTER);

    JButton button = new JButton("Add");
    frame.add(button, BorderLayout.SOUTH);
    ActionListener actionListener = new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            model.addElement("a");
        }
    };
    button.addActionListener(actionListener);

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

---

From source file:Main.java

public static void main(String[] args) {

    JPanel ui = new JPanel(new BorderLayout(2, 2));
    ui.setBorder(new EmptyBorder(4, 4, 4, 4));

    JPanel controls = new JPanel(new BorderLayout(2, 2));
    ui.add(controls, BorderLayout.PAGE_START);
    String s = new String(Character.toChars(8594));
    String[] items = { "Choice: right " + s + " arrow" };
    JComboBox cb = new JComboBox(items);
    controls.add(cb, BorderLayout.CENTER);
    controls.add(new JButton("Button"), BorderLayout.LINE_END);

    JSplitPane sp = new JSplitPane(JSplitPane.VERTICAL_SPLIT, new JTextArea(4, 40), new JTextArea(4, 40));

    ui.add(sp, BorderLayout.CENTER);

    JFrame f = new JFrame("Stretch Combo Layout");
    f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
    f.setContentPane(ui);/*from www  . j a  v a 2s  . c o  m*/
    f.pack();
    f.setLocationByPlatform(true);
    f.setVisible(true);

}

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From source file:MainClass.java

public static void main(final String args[]) {
    final String labels[] = { "A", "B", "C", "D", "E" };
    final DefaultComboBoxModel model = new DefaultComboBoxModel(labels);

    JFrame frame = new JFrame("Shared Data");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JComboBox comboBox1 = new JComboBox(model);
    comboBox1.setMaximumRowCount(5);/*from  w ww  .  java  2  s .c  om*/
    comboBox1.setEditable(true);
    frame.add(comboBox1, BorderLayout.NORTH);

    JList jlist = new JList(model);
    JScrollPane scrollPane = new JScrollPane(jlist);
    frame.add(scrollPane, BorderLayout.CENTER);

    JButton button = new JButton("Add");
    frame.add(button, BorderLayout.SOUTH);
    ActionListener actionListener = new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            model.addElement("a");
        }
    };
    button.addActionListener(actionListener);

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

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From source file:ToolBarSample.java

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

    JToolBar toolbar = new JToolBar();
    toolbar.setRollover(true);/* w w  w . j  av a2  s . co m*/

    JButton button = new JButton("button");
    toolbar.add(button);
    toolbar.addSeparator();

    toolbar.add(new JButton("button 2"));

    toolbar.add(new JComboBox(new String[] { "A", "B", "C" }));

    Container contentPane = frame.getContentPane();
    contentPane.add(toolbar, BorderLayout.NORTH);
    JTextArea textArea = new JTextArea();
    JScrollPane pane = new JScrollPane(textArea);
    contentPane.add(pane, BorderLayout.CENTER);
    frame.setSize(350, 150);
    frame.setVisible(true);
}

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