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() 

Source Link

Document

Creates a new JPanel with a double buffer and a flow layout.

Usage

From source file:Main.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Active Example");
    UIManager.put("LabelFactory", new ActiveLabel());
    final JPanel panel = new JPanel();
    JButton button = new JButton("Get");
    ActionListener actionListener = new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            JLabel label = (JLabel) UIManager.get("LabelFactory");
            panel.add(label);//from www  .  ja v a 2  s.  c  o m
            panel.revalidate();
        }
    };
    button.addActionListener(actionListener);

    Container contentPane = frame.getContentPane();
    contentPane.add(panel, BorderLayout.CENTER);
    contentPane.add(button, BorderLayout.SOUTH);
    frame.setSize(200, 200);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String args[]) {

    final JTextField textField = new JTextField();

    JScrollBar scrollBar = new JScrollBar(JScrollBar.HORIZONTAL);

    JPanel panel = new JPanel();
    panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));

    BoundedRangeModel brm = textField.getHorizontalVisibility();
    scrollBar.setModel(brm);// w w  w.  ja  v  a2  s  . co  m
    panel.add(textField);
    panel.add(scrollBar);

    textField.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            System.out.println("Text: " + textField.getText());
        }
    });

    JFrame frame = new JFrame("Text Slider");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    frame.add(panel, BorderLayout.NORTH);
    frame.setSize(300, 100);
    frame.setVisible(true);
}

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From source file:GridBagWithContaints.java

public static void main(String[] args) {
    JFrame f = new JFrame("Demonstrates the use of gridx, gridy,ipadx, ipady and insets constraints");
    JPanel p = new JPanel();

    p.setLayout(new GridBagLayout());
    // creates a constraints object
    GridBagConstraints c = new GridBagConstraints();
    c.insets = new Insets(2, 2, 2, 2); // insets for all components
    c.gridx = 0; // column 0
    c.gridy = 0; // row 0
    c.ipadx = 5; // increases components width by 10 pixels
    c.ipady = 5; // increases components height by 10 pixels
    p.add(new JButton("Java"), c); // constraints passed in
    c.gridx = 1; // column 1
    // c.gridy = 0; // comment out this for reusing the obj
    c.ipadx = 0; // resets the pad to 0
    c.ipady = 0;//from  w ww  .  j a va2 s .com
    p.add(new JButton("Source"), c);
    c.gridx = 0; // column 0
    c.gridy = 1; // row 1
    p.add(new JButton("and"), c);
    c.gridx = 1; // column 1
    p.add(new JButton("Support."), c);

    WindowListener wndCloser = new WindowAdapter() {
        public void windowClosing(WindowEvent e) {
            System.exit(0);
        }
    };
    f.addWindowListener(wndCloser);

    f.getContentPane().add(p);
    f.setSize(600, 200);
    f.show();
}

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From source file:Main.java

public static void main(String[] args) {
    JButton btnA = new JButton("A");
    JButton btnB = new JButton("B");

    btnA.setPreferredSize(new Dimension(50, 25));
    btnB.setPreferredSize(new Dimension(100, 25));

    JPanel btnAPanel = new JPanel();
    JPanel btnBPanel = new JPanel(new FlowLayout(FlowLayout.RIGHT));
    btnAPanel.add(btnA);/*from w  w  w  . j  a  va2s. c  o m*/
    btnBPanel.add(btnB);

    JPanel topPanel = new JPanel(new GridLayout(1, 0));
    topPanel.add(new JLabel("hi"));
    topPanel.add(btnAPanel);
    topPanel.add(btnBPanel);

    JPanel mainPanel = new JPanel(new BorderLayout());
    mainPanel.add(topPanel, BorderLayout.NORTH);

    mainPanel.setPreferredSize(new Dimension(400, 300));

    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(mainPanel);
    frame.pack();
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) {
    int ROWS = 100;
    JPanel content = new JPanel();
    content.setLayout(new BoxLayout(content, BoxLayout.Y_AXIS));
    content.add(new JLabel("Thanks for helping out. Use tab to move around."));
    for (int i = 0; i < ROWS; i++) {
        JTextField field = new JTextField("" + i);
        field.setName("field#" + i);
        content.add(field);/*from  w  ww.j  a v  a2 s .  co m*/
    }
    KeyboardFocusManager.getCurrentKeyboardFocusManager().addPropertyChangeListener("focusOwner",
            new PropertyChangeListener() {
                @Override
                public void propertyChange(PropertyChangeEvent evt) {
                    if (!(evt.getNewValue() instanceof JComponent)) {
                        return;
                    }
                    JViewport viewport = (JViewport) content.getParent();
                    JComponent focused = (JComponent) evt.getNewValue();
                    if (content.isAncestorOf(focused)) {
                        Rectangle rect = focused.getBounds();
                        Rectangle r2 = viewport.getVisibleRect();
                        content.scrollRectToVisible(
                                new Rectangle(rect.x, rect.y, (int) r2.getWidth(), (int) r2.getHeight()));
                    }
                }
            });
    JFrame window = new JFrame();
    window.setContentPane(new JScrollPane(content));
    window.setSize(200, 200);
    window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    window.setVisible(true);
}

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From source file:KeyboardFocusManagerDemo.java

public static void main(String[] args) {
    JFrame aWindow = new JFrame("This is a Border Layout");
    aWindow.setBounds(30, 30, 300, 300); // Size
    aWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JPanel p = new JPanel();

    p.add(new JTextField(10));
    p.add(new JTextField(10));
    p.add(new JTextField(10));
    p.add(new JTextField(10));
    p.add(new JTextField(10));
    p.add(new JTextField(10));

    Set<AWTKeyStroke> set = p.getFocusTraversalKeys(KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS);
    set = new HashSet(set);
    KeyStroke up = KeyStroke.getKeyStroke("A");
    set.add(up);//from w w  w  .jav  a  2 s  .  c o m
    System.out.println(set);

    p.setFocusTraversalKeys(KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, set);

    aWindow.add(p);

    aWindow.setVisible(true); // Display the window
}

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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);

    final JTextField textField = new JTextField();

    JScrollBar scrollBar = new JScrollBar(JScrollBar.HORIZONTAL);

    JPanel panel = new JPanel();
    panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));

    BoundedRangeModel brm = textField.getHorizontalVisibility();
    scrollBar.setModel(brm);/*from  w  w  w . j  ava  2  s.c o m*/
    panel.add(textField);
    panel.add(scrollBar);

    frame.add(panel, BorderLayout.NORTH);
    frame.setSize(300, 100);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) {
    JFrame f = new JFrame();
    DefaultListModel<String> dlm = new DefaultListModel();
    String[] modelElems = { "Apple", "Orange", "Banana" };
    for (int i = 0; i < modelElems.length; i++)
        dlm.add(i, modelElems[i]);//from  w ww .ja  v  a 2  s. co m

    JList<String> lstFruitList = new JList(dlm);
    lstFruitList.setVisible(true);

    JPanel p = new JPanel();
    p.add(lstFruitList);
    f.add(p);
    f.setLocation(0, 0);
    f.setSize(400, 400);
    f.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) {
    JFrame frame = new JFrame();
    JButton button = new JButton("Show Input Dialog Box");
    button.addActionListener(e -> {//from   w w w  .j  a  v a 2s  .c  o  m
        JTextField xField = new JTextField(5);
        JTextField yField = new JTextField(5);
        JPanel myPanel = new JPanel();
        myPanel.add(new JLabel("x:"));
        myPanel.add(xField);
        myPanel.add(Box.createHorizontalStrut(15));
        myPanel.add(new JLabel("y:"));
        myPanel.add(yField);

        int result = JOptionPane.showConfirmDialog(null, myPanel, "Please Enter X and Y Values",
                JOptionPane.OK_CANCEL_OPTION);
        if (result == JOptionPane.OK_OPTION) {
            System.out.println("x value: " + xField.getText());
            System.out.println("y value: " + yField.getText());
        }
    });
    JPanel panel = new JPanel();
    panel.add(button);
    frame.add(panel);
    frame.setSize(400, 400);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) {
    String[] names = { "John Smith", "this is a test", "this is a test. this is a test. " };
    MyCellRenderer cellRenderer = new MyCellRenderer(80);
    JList<String> list = new JList<>(names);
    list.setCellRenderer(cellRenderer);/*from   w w  w.j  av  a  2 s. co m*/
    JScrollPane sPane = new JScrollPane(list);
    JPanel panel = new JPanel();
    panel.add(sPane);
    JOptionPane.showMessageDialog(null, panel);

}

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