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) {
    JComboBox combo = new JComboBox();
    combo.setEditable(true);/* www .  j av a2  s.c  om*/
    for (int i = 0; i < 10; i++) {
        combo.addItem(i);
    }
    JLabel tip = new JLabel();
    tip.setText("Outside combobox");
    JPanel panel = new JPanel();
    panel.add(combo);
    panel.add(tip);
    panel.addMouseListener(new MouseAdapter() {
        @Override
        public void mouseEntered(MouseEvent e) {
            tip.setText("Outside combobox");
        }

        @Override
        public void mouseExited(MouseEvent e) {
            Component c = SwingUtilities.getDeepestComponentAt(e.getComponent(), e.getX(), e.getY());
            tip.setText(c != null && SwingUtilities.isDescendingFrom(c, combo) ? "Inside combo box"
                    : "Outside combobox");
        }
    });
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
    frame.add(panel);
    frame.pack();
    frame.setVisible(true);
}

From source file:MainClass.java

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

    frame.setLayout(new GridLayout(3, 3));

    for (int i = 0; i < 3; i++) {
        JButton button = new JButton("" + i);
        frame.add(button);/* ww w. j  av  a  2  s. com*/
    }

    JPanel panel = new JPanel();
    panel.setFocusCycleRoot(true);
    panel.setFocusTraversalPolicyProvider(true);
    panel.setLayout(new GridLayout(1, 3));
    for (int i = 0; i < 3; i++) {
        JButton button = new JButton("" + (i + 3));
        panel.add(button);
    }
    frame.add(panel);

    for (int i = 0; i < 3; i++) {
        JButton button = new JButton("" + (i + 6));
        frame.add(button);
    }

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

From source file:JDK6TextComponentDemo.java

public static void main(String[] args) throws Exception {
    final JTextArea textArea = new JTextArea();
    textArea.setText("text");
    JScrollPane jScrollPane = new JScrollPane(textArea);
    final MessageFormat header = new MessageFormat("My Header");
    final MessageFormat footer = new MessageFormat("My Footer");

    JPanel contentPane = new JPanel();
    contentPane.setLayout(new BorderLayout());
    contentPane.add(jScrollPane, BorderLayout.CENTER);

    JFrame frame = new JFrame();
    frame.setTitle("Text-component Printing Demo");
    frame.setSize(400, 200);/*ww  w. j  av  a 2  s .  co  m*/
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    frame.setContentPane(contentPane);
    frame.setVisible(true);
    textArea.print(header, footer, true, null, null, true);

}

From source file:Main.java

public static void main(String[] args) {
    Runnable r = new Runnable() {
        @Override/*from   ww w  .jav a2  s  .co  m*/
        public void run() {
            JPanel gui = new JPanel();

            final AnimatedImage[] tiles = new AnimatedImage[2];
            for (int ii = 0; ii < tiles.length; ii++) {
                tiles[ii] = new AnimatedImage();
                gui.add(new JLabel(new ImageIcon(tiles[ii])));
            }
            ActionListener listener = new ActionListener() {

                @Override
                public void actionPerformed(ActionEvent e) {
                    for (int i = 0; i < tiles.length; i++) {
                        tiles[i].paintImage();
                        gui.repaint();
                    }
                }
            };
            Timer timer = new Timer(50, listener);
            timer.start();

            JOptionPane.showMessageDialog(null, gui);
            timer.stop();
        }
    };
    SwingUtilities.invokeLater(r);
}

From source file:ActiveSample.java

public static void main(String args[]) {

    JFrame frame = new JFrame("Active Example");

    UIManager.put(LABEL_FACTORY, 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(LABEL_FACTORY);
            panel.add(label);//from   w  w w .j  a va 2  s. com
            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);
}

From source file:Main.java

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

    JPanel contentPane = new JPanel();
    contentPane.setLayout(new FlowLayout(FlowLayout.LEFT, 5, 5));
    JTextField tfield1 = new JTextField(10);
    JTextField tfield2 = new JTextField(10);

    FocusListener tfieldListener = new FocusListener() {
        @Override/*from   w  w w  .  jav a 2s .c o m*/
        public void focusGained(FocusEvent fe) {
        }

        @Override
        public void focusLost(FocusEvent fe) {
            String num1 = tfield1.getText().trim();
            String num2 = tfield2.getText().trim();
            if (num1 == null || num1.equals(""))
                num1 = "0";
            if (num2 == null || num2.equals(""))
                num2 = "0";
            System.out.println(Integer.toString(Integer.parseInt(num1) + Integer.parseInt(num2)));
        }
    };

    tfield1.addFocusListener(tfieldListener);
    tfield2.addFocusListener(tfieldListener);

    ((AbstractDocument) tfield1.getDocument()).setDocumentFilter(new MyDocumentFilter());
    ((AbstractDocument) tfield2.getDocument()).setDocumentFilter(new MyDocumentFilter());

    contentPane.add(tfield1);
    contentPane.add(tfield2);

    frame.setContentPane(contentPane);
    frame.pack();
    frame.setLocationByPlatform(true);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String[] args) {
    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JPanel p = new JPanel();
    p.setOpaque(true);/*from w  ww .ja v  a  2s. c  om*/
    p.setLayout(new FlowLayout());
    p.add(good);

    f.add(p, BorderLayout.CENTER);
    f.add(resultLabel, BorderLayout.SOUTH);
    good.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent ev) {
            resultLabel.setText("Working . . .");
            good.setEnabled(false);
            Thread worker = new Thread() {
                public void run() {
                    try {
                        Thread.sleep(5000);
                    } catch (InterruptedException ex) {
                    }
                    SwingUtilities.invokeLater(new Runnable() {
                        public void run() {
                            resultLabel.setText("Ready");
                            good.setEnabled(true);
                        }
                    });
                }
            };
            worker.start(); // So we don't hold up the dispatch thread.
        }
    });
    f.setSize(300, 100);
    f.setVisible(true);
}

From source file:Main.java

public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setLayout(new BorderLayout());
    frame.pack();/*from  w w w. j av  a 2  s  . c om*/

    Container contentPane = frame.getContentPane();
    contentPane.setLayout(null);
    for (int i = 0; i < 4; i++) {
        JPanel panel = new JPanel();
        panel.setBounds((i * 75) + 475, 25, 75, 100);
        System.out.println(panel.getBounds());
        contentPane.add(panel);
        panel.setBorder(BorderFactory.createLineBorder(Color.BLACK, 3));
    }
    System.out.println(getComponentAt(contentPane, new Point(475, 25)));
    System.out.println(getComponentAt(contentPane, new Point(100, 25)));
    frame.setVisible(true);
}

From source file:GlassExample.java

/** Construct a Splash screen with the given image */
public static void main(String[] args) {
    JFrame f = new JFrame("GlassPane");

    final JPanel p1 = new JPanel();
    p1.add(new JLabel("GlassPane Example"));
    JButton show = new JButton("Show");
    p1.add(show);//from w w  w.j  av  a2  s  .co m
    p1.add(new JButton("No-op"));
    f.getContentPane().add(p1);

    final JPanel glass = (JPanel) f.getGlassPane();

    glass.setVisible(true);
    glass.setLayout(new GridBagLayout());
    JButton glassButton = new JButton("Hide");
    glass.add(glassButton);

    f.setSize(150, 80);
    f.setVisible(true);

    boolean debug = false;
    if (debug) {
        System.out.println("Button is " + glassButton);
        System.out.println("GlassPane is " + glass);
    }

    // Add actions to the buttons...

    // show button (re-)shows the glass pane.
    show.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            glass.setVisible(true);
            p1.repaint();
        }
    });
    // hide button hides the Glass Pane to show what's under.
    glassButton.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            glass.setVisible(false);
            p1.repaint();
        }
    });
}

From source file:MainClass.java

public static void main(String args[]) {
    final String LABEL_FACTORY = "LabelFactory";

    JFrame frame = new JFrame("Active Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    UIManager.put(LABEL_FACTORY, 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(LABEL_FACTORY);
            panel.add(label);//  w w w .jav  a 2 s  .  com
            panel.revalidate();
        }
    };
    button.addActionListener(actionListener);

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