Example usage for javax.swing JPanel JPanel

Introduction

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

Prototype

public JPanel(boolean isDoubleBuffered) 

Source Link

Document

Creates a new JPanel with FlowLayout and the specified buffering strategy.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    String[] columns = { "Name", "Age" };

    Object[][] content = { { "R", new Integer(24) }, { "A", new Integer(25) }, { "J", new Integer(30) },
            { "A", new Integer(32) }, { "S", new Integer(27) } };

    JTable table = new JTable(content, columns);
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JPanel jPanel = new JPanel(new GridLayout(2, 0));
    jPanel.setOpaque(true);//from  w w w  .  j a  v  a  2s . c  o  m
    table.setPreferredScrollableViewportSize(new Dimension(500, 70));
    jPanel.add(new JScrollPane(table));
    /* Add the panel to the JFrame */
    frame.add(jPanel);
    /* Display the JFrame window */
    frame.pack();
    frame.setVisible(true);

    table.print();
}

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From source file:JRadioButtonSelectedElements.java

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

    JPanel panel = new JPanel(new GridLayout(0, 1));

    ButtonGroup group = new ButtonGroup();
    JRadioButton aRadioButton = new JRadioButton("A");
    JRadioButton bRadioButton = new JRadioButton("B");

    ActionListener crustActionListener = new ActionListener() {
        String lastSelected;//from www .j  a  va  2  s. c o  m

        public void actionPerformed(ActionEvent actionEvent) {
            AbstractButton aButton = (AbstractButton) actionEvent.getSource();
            String label = aButton.getText();
            String msgStart;
            if (label.equals(lastSelected)) {
                msgStart = "Reselected: ";
            } else {
                msgStart = "Selected: ";
            }
            lastSelected = label;
            System.out.println(msgStart + label);
        }
    };

    panel.add(aRadioButton);
    group.add(aRadioButton);
    panel.add(bRadioButton);
    group.add(bRadioButton);

    aRadioButton.addActionListener(crustActionListener);
    bRadioButton.addActionListener(crustActionListener);

    frame.add(panel);
    frame.setSize(300, 200);
    frame.setVisible(true);

    System.out.println(getSelectedElements(panel).hasMoreElements());
}

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From source file:Main.java

public static void main(String[] args) {
    try {// w w  w  .  j  a  v  a2  s . c o m
        bg = ImageIO.read(new URL("http://www.java2s.com/style/download.png"));
    } catch (Exception ex) {
        System.out.println(ex);
    }

    JPanel tabPanel = new JPanel(new GridBagLayout()) {
        @Override
        protected void paintComponent(Graphics g) {
            super.paintComponent(g);
            g.drawImage(bg, 0, 0, getWidth(), getHeight(), this);
        }

        @Override
        public Dimension getPreferredSize() {
            return new Dimension(400, 300);
        }
    };
    JPanel buttons = new JPanel(new GridLayout(4, 1, 15, 15));
    buttons.setOpaque(false);
    for (int i = 0; i < 4; i++) {
        buttons.add(new JButton("Button"));
    }
    tabPanel.add(buttons);

    JTabbedPane tabPane = new JTabbedPane();
    tabPane.add("Panel with Bachground", tabPanel);

    JFrame frame = new JFrame();
    frame.setContentPane(tabPane);
    frame.pack();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.setUndecorated(true);// w w w.  ja v a  2 s.com
    frame.setBackground(new Color(0, 0, 0, 0));
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setContentPane(new ShadowPane());

    JPanel panel = new JPanel(new GridBagLayout());
    panel.add(new JLabel("Look ma, no hands"));

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

---

From source file:Main.java

public static void main(String[] args) {
    ScriptEngine engine = new ScriptEngineManager().getEngineByExtension("js");

    String[] ops = { "+", "-", "*", "/" };

    JPanel gui = new JPanel(new BorderLayout(2, 2));
    JPanel labels = new JPanel(new GridLayout(0, 1));
    gui.add(labels, BorderLayout.WEST);
    labels.add(new JLabel("a"));
    labels.add(new JLabel("operand"));
    labels.add(new JLabel("b"));
    labels.add(new JLabel("="));

    JPanel controls = new JPanel(new GridLayout(0, 1));
    gui.add(controls, BorderLayout.CENTER);
    JTextField a = new JTextField(10);
    controls.add(a);/*from   w  w w.  j a v a2 s . c o m*/
    JComboBox operand = new JComboBox(ops);
    controls.add(operand);
    JTextField b = new JTextField(10);
    controls.add(b);
    JTextField output = new JTextField(10);
    controls.add(output);

    ActionListener al = new ActionListener() {
        public void actionPerformed(ActionEvent ae) {
            String expression = a.getText() + operand.getSelectedItem() + b.getText();
            try {
                Object result = engine.eval(expression);
                if (result == null) {
                    output.setText("Output was 'null'");
                } else {
                    output.setText(result.toString());
                }
            } catch (ScriptException se) {
                output.setText(se.getMessage());
            }
        }
    };

    operand.addActionListener(al);
    a.addActionListener(al);
    b.addActionListener(al);

    JOptionPane.showMessageDialog(null, gui);
}

---

From source file:SpinnerNumberEditorSample2.java

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

    SpinnerModel model = new SpinnerNumberModel(50, 0, 100, .25);
    JSpinner spinner = new JSpinner(model);
    JComponent editor = new JSpinner.NumberEditor(spinner, "#,##0.###");
    spinner.setEditor(editor);/*  w w w. j a va  2s.  c o m*/

    JPanel panel1 = new JPanel(new BorderLayout());
    panel1.add(spinner, BorderLayout.CENTER);
    frame.add(panel1, BorderLayout.SOUTH);

    frame.setSize(200, 90);
    frame.setVisible(true);
}

---

From source file:Main.java

public static void main(String[] args) {
    JPanel gui = new JPanel(new GridLayout(0, 1, 3, 15));
    for (int ii = 1; ii < 4; ii++) {
        gui.add(getButtonLayout(ii));//from w  ww  .  ja  v a  2s.  c  om
    }
    JOptionPane.showMessageDialog(null, gui);
}

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From source file:AButtonGroup.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Button Group");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JPanel panel = new JPanel(new GridLayout(0, 1));
    Border border = BorderFactory.createTitledBorder("Examples");
    panel.setBorder(border);/*from  w w w  .ja  v a2 s. c  om*/
    ButtonGroup group = new ButtonGroup();
    AbstractButton abstract1 = new JToggleButton("Toggle Button");
    panel.add(abstract1);
    group.add(abstract1);
    AbstractButton abstract2 = new JRadioButton("Radio Button");
    panel.add(abstract2);
    group.add(abstract2);
    AbstractButton abstract3 = new JCheckBox("Check Box");
    panel.add(abstract3);
    group.add(abstract3);
    AbstractButton abstract4 = new JRadioButtonMenuItem("Radio Button Menu Item");
    panel.add(abstract4);
    group.add(abstract4);
    AbstractButton abstract5 = new JCheckBoxMenuItem("Check Box Menu Item");
    panel.add(abstract5);
    group.add(abstract5);
    Container contentPane = frame.getContentPane();
    contentPane.add(panel, BorderLayout.CENTER);
    frame.setSize(300, 200);
    frame.setVisible(true);
}

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From source file:Main.java

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

    JPanel panel = new JPanel(new GridLayout(0, 1));
    Border border = BorderFactory.createTitledBorder("Options");
    panel.setBorder(border);//from   w ww. java  2s . c om
    final ButtonGroup group = new ButtonGroup();
    AbstractButton abstract1 = new JRadioButton("One");
    panel.add(abstract1);
    group.add(abstract1);
    AbstractButton abstract2 = new JRadioButton("Two");
    panel.add(abstract2);
    group.add(abstract2);
    AbstractButton abstract3 = new JRadioButton("Three");
    panel.add(abstract3);
    group.add(abstract3);
    AbstractButton abstract4 = new JRadioButton("Four");
    panel.add(abstract4);
    group.add(abstract4);
    AbstractButton abstract5 = new JRadioButton("Five");
    panel.add(abstract5);
    group.add(abstract5);
    ActionListener aListener = new ActionListener() {
        public void actionPerformed(ActionEvent event) {
            Enumeration elements = group.getElements();
            while (elements.hasMoreElements()) {
                AbstractButton button = (AbstractButton) elements.nextElement();
                if (button.isSelected()) {
                    System.out.println("The winner is: " + button.getText());
                    break;
                }
            }
            group.setSelected(null, true);
        }
    };
    JButton button = new JButton("Show Selected");
    button.addActionListener(aListener);
    Container container = frame.getContentPane();
    container.add(panel, BorderLayout.CENTER);
    container.add(button, BorderLayout.SOUTH);
    frame.setSize(300, 200);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) {

    JFrame f = new JFrame();
    f.setTitle("Example2");
    f.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);

    JPanel p1 = new JPanel(new FlowLayout(FlowLayout.CENTER));
    p1.setBorder(new TitledBorder(new LineBorder(Color.BLACK), "JPanel 1"));
    for (int i = 0; i < NB1; i++)
        p1.add(new JButton("Button " + i));

    JPanel p2 = new JPanel(new FlowLayout(FlowLayout.CENTER));

    p2.setBorder(new TitledBorder(new LineBorder(Color.BLACK), "JPanel 2"));
    for (int i = NB1; i < NB2; i++)
        p2.add(new JButton("Button " + i));

    JPanel p3 = new JPanel(new FlowLayout(FlowLayout.CENTER));
    p3.setBorder(new TitledBorder(new LineBorder(Color.BLACK), "JPanel 3"));
    for (int i = NB2; i < NB3; i++)
        p3.add(new JButton("Button " + i));

    JPanel global = new JPanel(new GridBagLayout());
    GridBagConstraints gbc = new GridBagConstraints();
    gbc.fill = GridBagConstraints.HORIZONTAL; // added
    gbc.weightx = 1.0f; // added
    gbc.gridy = 0;//w ww. jav a 2  s .  com
    global.add(p1, gbc);
    gbc.gridy++;
    global.add(p2, gbc);
    gbc.gridy++;
    global.add(p3, gbc);

    f.add(global);
    f.pack();
    f.setVisible(true);

}

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