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:ArrayListComboBoxModel.java

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

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

    JComboBox comboBox = new JComboBox(model);

    Container contentPane = frame.getContentPane();
    contentPane.add(comboBox, BorderLayout.NORTH);
    frame.setSize(300, 225);//w ww  .ja va 2  s . co m
    frame.setVisible(true);
}

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From source file:ArrayListComboBoxModel.java

public static void main(String args[]) {
    JFrame frame = new JFrame("ArrayListComboBoxModel");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    ArrayList<Object> arrayList = new ArrayList<Object>();
    arrayList.add("A");
    arrayList.add("B");
    arrayList.add("C");
    ArrayListComboBoxModel model = new ArrayListComboBoxModel(arrayList);

    JComboBox comboBox = new JComboBox(model);

    frame.add(comboBox, BorderLayout.NORTH);
    frame.setSize(300, 225);//from  w  w  w . j a v a  2s. c  o  m
    frame.setVisible(true);
}

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From source file:EditableColorColumn.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);// ww  w. j  a  v a 2  s .co m
    TableCellEditor editor = new DefaultCellEditor(comboBox);

    JFrame frame = new JFrame("Editable Color Table");
    TableModel model = new ColorTableModel();
    JTable table = new JTable(model);

    TableColumn column = table.getColumnModel().getColumn(3);
    column.setCellRenderer(renderer);
    column.setCellEditor(editor);

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

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From source file:ChangeLook.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) {
            String lafClassName = null;
            lafClassName = actionEvent.getActionCommand();
            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);
            }//  w w w.  ja  va 2s .  c o m

        }
    };

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

    JComboBox comboBox = new JComboBox(new String[] { "a", "b" });

    JPanel panel = new JPanel();

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

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

}

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From source file:Main.java

public static void main(String[] args) {
    JPanel ui = new JPanel(new BorderLayout(4, 4));
    ui.setBorder(new EmptyBorder(6, 6, 6, 6));

    JPanel controls = new JPanel(new FlowLayout(FlowLayout.LEADING));
    ui.add(controls, BorderLayout.PAGE_START);
    int s = 100;//from   w ww  . ja  v a2  s.  co  m
    Dimension[] sizes = { new Dimension(s * 4, s * 2), new Dimension(s * 6, s * 3),
            new Dimension(s * 8, s * 4) };
    final JComboBox cb = new JComboBox(sizes);
    controls.add(cb);
    final JPanel[] panels = new JPanel[sizes.length];
    for (int ii = 0; ii < sizes.length; ii++) {
        Dimension d = sizes[ii];
        BufferedImage bi = new BufferedImage(d.width, d.height, BufferedImage.TYPE_INT_RGB);
        JPanel p = new JPanel(new GridLayout());
        JLabel l = new JLabel(new ImageIcon(bi));
        p.add(l);
        panels[ii] = p;
    }
    ItemListener sizeListener = new ItemListener() {

        JPanel current = panels[0];

        @Override
        public void itemStateChanged(ItemEvent e) {
            JPanel next = panels[cb.getSelectedIndex()];
            swapComponentsAndResizeUI(ui, current, next);
            current = next;
        }
    };
    cb.addItemListener(sizeListener);

    ui.add(panels[0], BorderLayout.CENTER);

    JFrame f = new JFrame("Three Sized Panels");
    f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
    f.setContentPane(ui);
    f.pack();
    f.setLocationByPlatform(true);
    f.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    int SIZE = 14;
    String FONT = "Dialog";

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

    JTextPane tp = new JTextPane();
    tp.setFont(new Font(FONT, Font.PLAIN, SIZE));
    tp.setPreferredSize(new Dimension(400, 300));
    StyledDocument doc = tp.getStyledDocument();
    Style defaultStyle = StyleContext.getDefaultStyleContext().getStyle(StyleContext.DEFAULT_STYLE);
    Style boldStyle = doc.addStyle("bold", defaultStyle);
    StyleConstants.setBold(boldStyle, true);
    String boldText = "this is bold test";
    String plainText = "this is plain.";

    doc.insertString(doc.getLength(), boldText, boldStyle);
    doc.insertString(doc.getLength(), plainText, defaultStyle);

    JPanel panel = new JPanel();
    panel.add(tp);//  w w  w.  j  ava 2  s  . c o  m

    JComboBox<String> zoomCombo = new JComboBox<String>(
            new String[] { "0.75", "1.00", "1.50", "1.75", "2.00" });
    zoomCombo.addActionListener(e -> {
        String s = (String) zoomCombo.getSelectedItem();
        double scale = new Double(s).doubleValue();
        int size = (int) (SIZE * scale);
        tp.setFont(new Font(FONT, Font.PLAIN, size));
    });
    zoomCombo.setSelectedItem("1.00");
    JPanel optionsPanel = new JPanel();
    optionsPanel.add(zoomCombo);
    panel.setBackground(Color.WHITE);
    frame.add(panel, BorderLayout.CENTER);
    frame.add(optionsPanel, BorderLayout.NORTH);
    frame.pack();
    frame.setVisible(true);
}

---

From source file:Main.java

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

    JPanel gui = new JPanel(new BorderLayout(5, 5));

    JPanel plafComponents = new JPanel(new FlowLayout(FlowLayout.RIGHT, 3, 3));
    plafComponents.setBorder(new TitledBorder("FlowLayout(FlowLayout.RIGHT, 3,3)"));

    UIManager.LookAndFeelInfo[] plafInfos = UIManager.getInstalledLookAndFeels();
    String[] plafNames = new String[plafInfos.length];
    for (int ii = 0; ii < plafInfos.length; ii++) {
        plafNames[ii] = plafInfos[ii].getName();
    }//from  w w w.j av a 2  s .  co  m
    JComboBox plafChooser = new JComboBox(plafNames);
    plafComponents.add(plafChooser);

    JCheckBox pack = new JCheckBox("Pack on PLAF change", true);
    plafComponents.add(pack);

    plafChooser.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent ae) {
            int index = plafChooser.getSelectedIndex();
            try {
                UIManager.setLookAndFeel(plafInfos[index].getClassName());
                SwingUtilities.updateComponentTreeUI(frame);
                if (pack.isSelected()) {
                    frame.pack();
                    frame.setMinimumSize(frame.getSize());
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    });

    gui.add(plafComponents, BorderLayout.NORTH);

    JPanel dynamicLabels = new JPanel(new BorderLayout(4, 4));
    dynamicLabels.setBorder(new TitledBorder("BorderLayout(4,4)"));
    gui.add(dynamicLabels, BorderLayout.WEST);

    final JPanel labels = new JPanel(new GridLayout(0, 2, 3, 3));
    labels.setBorder(new TitledBorder("GridLayout(0,2,3,3)"));

    JButton addNew = new JButton("Add Another Label");
    dynamicLabels.add(addNew, BorderLayout.NORTH);
    addNew.addActionListener(new ActionListener() {

        private int labelCount = 0;

        public void actionPerformed(ActionEvent ae) {
            labels.add(new JLabel("Label " + ++labelCount));
            frame.validate();
        }
    });

    dynamicLabels.add(new JScrollPane(labels), BorderLayout.CENTER);

    String[] header = { "Name", "Value" };
    String[] a = new String[0];
    String[] names = System.getProperties().stringPropertyNames().toArray(a);
    String[][] data = new String[names.length][2];
    for (int ii = 0; ii < names.length; ii++) {
        data[ii][0] = names[ii];
        data[ii][1] = System.getProperty(names[ii]);
    }
    DefaultTableModel model = new DefaultTableModel(data, header);
    JTable table = new JTable(model);

    JScrollPane tableScroll = new JScrollPane(table);
    Dimension tablePreferred = tableScroll.getPreferredSize();
    tableScroll.setPreferredSize(new Dimension(tablePreferred.width, tablePreferred.height / 3));

    JPanel imagePanel = new JPanel(new GridBagLayout());
    JLabel imageLabel = new JLabel("test");
    imagePanel.add(imageLabel, null);

    JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT, tableScroll, new JScrollPane(imagePanel));
    gui.add(splitPane, BorderLayout.CENTER);

    frame.setContentPane(gui);
    frame.pack();
    frame.setVisible(true);
}

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From source file:ResizeTable.java

public static void main(String args[]) {

    Object rowData[][] = { { "1", "one", "ichi - \u4E00", "un", "I" },
            { "2", "two", "ni - \u4E8C", "deux", "II" }, { "3", "three", "san - \u4E09", "trois", "III" },
            { "4", "four", "shi - \u56DB", "quatre", "IV" }, { "5", "five", "go - \u4E94", "cinq", "V" },
            { "6", "six", "roku - \u516D", "treiza", "VI" }, { "7", "seven", "shichi - \u4E03", "sept", "VII" },
            { "8", "eight", "hachi - \u516B", "huit", "VIII" }, { "9", "nine", "kyu - \u4E5D", "neur", "IX" },
            { "10", "ten", "ju - \u5341", "dix", "X" } };

    String columnNames[] = { "#", "English", "Japanese", "French", "Roman" };

    final JTable table = new JTable(rowData, columnNames);
    JScrollPane scrollPane = new JScrollPane(table);

    String modes[] = { "Resize All Columns", "Resize Last Column", "Resize Next Column", "Resize Off",
            "Resize Subsequent Columns" };
    final int modeKey[] = { JTable.AUTO_RESIZE_ALL_COLUMNS, JTable.AUTO_RESIZE_LAST_COLUMN,
            JTable.AUTO_RESIZE_NEXT_COLUMN, JTable.AUTO_RESIZE_OFF, JTable.AUTO_RESIZE_SUBSEQUENT_COLUMNS };
    JComboBox resizeModeComboBox = new JComboBox(modes);
    int defaultMode = 4;
    table.setAutoResizeMode(modeKey[defaultMode]);
    resizeModeComboBox.setSelectedIndex(defaultMode);
    ItemListener itemListener = new ItemListener() {
        public void itemStateChanged(ItemEvent e) {
            JComboBox source = (JComboBox) e.getSource();
            int index = source.getSelectedIndex();
            table.setAutoResizeMode(modeKey[index]);
        }/*from  w  ww  . j a  v a 2s .com*/
    };
    resizeModeComboBox.addItemListener(itemListener);

    JFrame frame = new JFrame("Resizing Table");
    Container contentPane = frame.getContentPane();

    contentPane.add(resizeModeComboBox, BorderLayout.NORTH);
    contentPane.add(scrollPane, BorderLayout.CENTER);

    frame.setSize(300, 150);
    frame.setVisible(true);
}

---

From source file:Main.java

public static void main(String args[]) {
    JFrame frame = new JFrame();
    Container contentPane = frame.getContentPane();
    ActionListener listener = new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            System.out.println("Command: " + e.getActionCommand());
            int modifiers = e.getModifiers();
            System.out.println("\tALT : " + checkMod(modifiers, ActionEvent.ALT_MASK));
            System.out.println("\tCTRL : " + checkMod(modifiers, ActionEvent.CTRL_MASK));
            System.out.println("\tMETA : " + checkMod(modifiers, ActionEvent.META_MASK));
            System.out.println("\tSHIFT: " + checkMod(modifiers, ActionEvent.SHIFT_MASK));
            Object source = e.getSource();
            if (source instanceof JComboBox) {
                JComboBox jb = (JComboBox) source;
                System.out.println("Combo: " + jb.getSelectedItem());
            }/*from w  w w  .j  a va2 s . c om*/
        }

        private boolean checkMod(int modifiers, int mask) {
            return ((modifiers & mask) == mask);
        }
    };

    String flavors[] = { "Item 1", "Item 2", "Item 3" };
    JComboBox jc = new JComboBox(flavors);
    jc.setMaximumRowCount(4);
    jc.setEditable(true);
    jc.addActionListener(listener);
    contentPane.add(jc, BorderLayout.NORTH);

    JButton b = new JButton("Button!");
    b.addActionListener(listener);
    contentPane.add(b, BorderLayout.CENTER);

    JPanel panel = new JPanel();
    JLabel label = new JLabel("Label 1: ");
    JTextField text = new JTextField("Type your text", 15);
    text.addActionListener(listener);
    label.setDisplayedMnemonic(KeyEvent.VK_1);
    label.setLabelFor(text);
    panel.add(label);
    panel.add(text);
    contentPane.add(panel, BorderLayout.SOUTH);

    frame.pack();
    frame.setVisible(true);
}

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From source file:ActionTest.java

public static void main(String args[]) {
    JFrame frame = new JFrame();
    Container contentPane = frame.getContentPane();
    ActionListener listener = new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            System.out.println("Command: " + e.getActionCommand());
            System.out.println("Modifiers: ");
            int modifiers = e.getModifiers();
            System.out.println("\tALT : " + checkMod(modifiers, ActionEvent.ALT_MASK));
            System.out.println("\tCTRL : " + checkMod(modifiers, ActionEvent.CTRL_MASK));
            System.out.println("\tMETA : " + checkMod(modifiers, ActionEvent.META_MASK));
            System.out.println("\tSHIFT: " + checkMod(modifiers, ActionEvent.SHIFT_MASK));
            Object source = e.getSource();
            if (source instanceof JComboBox) {
                JComboBox jb = (JComboBox) source;
                System.out.println("Combo: " + jb.getSelectedItem());
            }/*from w w  w.  ja va 2s . c  om*/
        }

        private boolean checkMod(int modifiers, int mask) {
            return ((modifiers & mask) == mask);
        }
    };

    String flavors[] = { "Item 1", "Item 2", "Item 3" };
    JComboBox jc = new JComboBox(flavors);
    jc.setMaximumRowCount(4);
    jc.setEditable(true);
    jc.addActionListener(listener);
    contentPane.add(jc, BorderLayout.NORTH);

    JButton b = new JButton("Button!");
    b.addActionListener(listener);
    contentPane.add(b, BorderLayout.CENTER);

    JPanel panel = new JPanel();
    JLabel label = new JLabel("Label 1: ");
    JTextField text = new JTextField("Type your text", 15);
    text.addActionListener(listener);
    label.setDisplayedMnemonic(KeyEvent.VK_1);
    label.setLabelFor(text);
    panel.add(label);
    panel.add(text);
    contentPane.add(panel, BorderLayout.SOUTH);

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

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