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) {
    int ROW_HEIGHT = 40;
    String[] TABLE_COLUMNS = { "Foo", "Bar" };
    DefaultTableModel tableModel = new DefaultTableModel(TABLE_COLUMNS, 2);
    JTable table = new JTable(tableModel);
    table.setRowHeight(ROW_HEIGHT);//from  w w w.  j  a v  a2s .c o m
    JScrollPane scrollpane = new JScrollPane(table);
    JButton addRowBtn = new JButton(new AbstractAction("Add Row") {
        @Override
        public void actionPerformed(ActionEvent arg0) {
            tableModel.addRow(new String[] { "", "" });
        }
    });
    JPanel btnPanel = new JPanel();
    btnPanel.add(addRowBtn);
    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.getContentPane().add(scrollpane, BorderLayout.CENTER);
    f.getContentPane().add(btnPanel, BorderLayout.PAGE_END);
    f.pack();
    f.setLocationByPlatform(true);
    f.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) {
    JTextField firstField = new JTextField(10);
    JTextField middleField = new JTextField(10);
    JTextField lastField = new JTextField(10);

    JLabel firstLabel = new JLabel("First Name", JLabel.RIGHT);
    firstLabel.setDisplayedMnemonic('F');
    firstLabel.setLabelFor(firstField);//from   w  ww  . java2 s .co  m

    JLabel middleLabel = new JLabel("Middle Initial", JLabel.RIGHT);
    middleLabel.setDisplayedMnemonic('I');
    middleLabel.setDisplayedMnemonicIndex(7);
    middleLabel.setLabelFor(middleField);

    JLabel lastLabel = new JLabel("Last Name", JLabel.RIGHT);
    lastLabel.setDisplayedMnemonic('L');
    lastLabel.setLabelFor(lastField);

    JPanel p = new JPanel();
    p.setLayout(new GridLayout(3, 2, 5, 5));
    p.add(firstLabel);
    p.add(firstField);
    p.add(middleLabel);
    p.add(middleField);
    p.add(lastLabel);
    p.add(lastField);

    JFrame f = new JFrame("MnemonicLabels");
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setContentPane(p);
    f.pack();
    f.setVisible(true);
}

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From source file:BoxSample.java

public static void main(String args[]) {
    JButton button;//ww  w. ja  va2  s .co m
    Vector buttons = new Vector();
    Dimension dim;
    JFrame frame = new JFrame("Box Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    Container contentPane = frame.getContentPane();
    contentPane.setLayout(new BoxLayout(contentPane, BoxLayout.X_AXIS));
    JPanel topLeft = new JPanel();
    topLeft.setLayout(new BoxLayout(topLeft, BoxLayout.X_AXIS));
    topLeft.add(button = new JButton("One"));
    buttons.add(button);
    changeBoth(button);
    topLeft.add(button = new JButton("Two"));
    buttons.add(button);
    changeBoth(button);
    changeWidth(topLeft);
    JPanel bottomLeft = new JPanel();
    bottomLeft.setLayout(new BoxLayout(bottomLeft, BoxLayout.X_AXIS));
    bottomLeft.add(button = new JButton("Six"));
    buttons.add(button);
    changeBoth(button);
    bottomLeft.add(button = new JButton("Seven"));
    buttons.add(button);
    changeBoth(button);
    changeWidth(bottomLeft);
    JPanel left = new JPanel();
    left.setLayout(new BoxLayout(left, BoxLayout.Y_AXIS));
    left.add(topLeft);
    left.add(button = new JButton("Four"));
    buttons.add(button);
    changeBoth(button);
    left.add(bottomLeft);
    changeBoth(left);

    JPanel right = new JPanel();
    right.setLayout(new BoxLayout(right, BoxLayout.Y_AXIS));
    right.add(button = new JButton("Three"));
    buttons.add(button);
    changeWidth(button);
    right.add(button = new JButton("Five"));
    buttons.add(button);
    changeBoth(button);
    changeBoth(right);
    contentPane.add(left);
    contentPane.add(right);
    tweak(buttons);
    frame.pack();
    frame.setVisible(true);
}

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From source file:MaskInputSample.java

public static void main(String args[]) {

    JFrame frame = new JFrame("Mask Input");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JLabel label;/*from w w w .j  av  a 2s .  c om*/
    JFormattedTextField input;
    JPanel panel;
    MaskFormatter formatter;

    BoxLayout layout = new BoxLayout(frame.getContentPane(), BoxLayout.Y_AXIS);
    frame.setLayout(layout);

    try {
        label = new JLabel("SSN");
        formatter = new MaskFormatter("###'-##'-####");
        input = new JFormattedTextField(formatter);
        input.setValue("123-45-6789");
        input.setColumns(20);
        panel = new JPanel();
        panel.add(label);
        panel.add(input);
        frame.add(panel);
    } catch (ParseException e) {
        System.err.println("Unable to add SSN");
    }
    frame.pack();
    frame.setVisible(true);
}

---

From source file:DefaultSample.java

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

    JTextField textField = new JTextField();
    content.add(textField, BorderLayout.NORTH);

    ActionListener actionListener = new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            System.out.println(actionEvent.getActionCommand() + " selected");
        }/*from  w  w  w.jav  a 2s  .c om*/
    };

    JPanel panel = new JPanel();
    JButton defaultButton = new JButton("Default Button");
    defaultButton.addActionListener(actionListener);
    panel.add(defaultButton);

    JButton otherButton = new JButton("Other Button");
    otherButton.addActionListener(actionListener);
    panel.add(otherButton);

    content.add(panel, BorderLayout.SOUTH);

    Keymap keymap = textField.getKeymap();
    KeyStroke keystroke = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0, false);
    keymap.removeKeyStrokeBinding(keystroke);

    frame.getRootPane().setDefaultButton(defaultButton);

    frame.setSize(250, 150);
    frame.setVisible(true);
}

---

From source file:Main.java

public static void main(String[] args) {
    JTabbedPane tabbedPane = new JTabbedPane();
    tabbedPane.setUI(new MetalTabbedPaneUI() {
        @Override/* ww w .j  ava2  s.  c  o  m*/
        protected int calculateTabWidth(int tabPlacement, int tabIndex, FontMetrics metrics) {
            int width = super.calculateTabWidth(tabPlacement, tabIndex, metrics);
            int extra = tabIndex * 50;
            return width + extra;
        }
    });
    tabbedPane.addTab("JTable", new JScrollPane(new JTable(5, 5)));
    tabbedPane.addTab("JTree", new JScrollPane(new JTree()));
    tabbedPane.addTab("JSplitPane", new JSplitPane());

    JPanel p = new JPanel();
    p.add(tabbedPane);

    JFrame frame = new JFrame();
    frame.setContentPane(p);
    frame.pack();
    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. java 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 void main(String[] args) throws IOException {
    BufferedImage original = ImageIO.read(new URL("http://www.java2s.com/style/download.png"));

    GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
    GraphicsDevice gd = ge.getDefaultScreenDevice();
    GraphicsConfiguration gc = gd.getDefaultConfiguration();

    BufferedImage rotated1 = create(original, -Math.PI / 2, gc);
    BufferedImage rotated2 = create(original, +Math.PI / 4, gc);
    BufferedImage rotated3 = create(original, Math.PI, gc);

    JPanel cp = new JPanel();
    cp.add(new JLabel(new ImageIcon(original)));
    cp.add(new JLabel(new ImageIcon(rotated1)));
    cp.add(new JLabel(new ImageIcon(rotated2)));
    cp.add(new JLabel(new ImageIcon(rotated3)));

    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setContentPane(cp);//  w  ww  . j  a v  a 2s.com
    f.pack();
    f.setVisible(true);

}

---

From source file:Main.java

public static void main(String[] args) {
    JFrame f = new JFrame();
    JPanel panel = new JPanel();
    JTextPane textPane = new JTextPane();
    JTextField tf = new JTextField("is");
    String word = "";
    Highlighter highlighter = new UnderlineHighlighter(null);

    textPane.setHighlighter(highlighter);
    textPane.setText("This is a test");
    panel.setLayout(new BorderLayout());
    panel.add(new JLabel("Enter word, then press ENTER key: "), "West");
    panel.add(tf, "Center");

    final WordSearcher searcher = new WordSearcher(textPane);
    tf.addActionListener(e -> {//from  w  w w  . ja va  2 s  . c o  m
        String w = tf.getText().trim();
        int offset = searcher.search(w);
        if (offset == -1) {
            return;
        }
        try {
            textPane.scrollRectToVisible(textPane.modelToView(offset));
        } catch (BadLocationException ex) {
        }

    });
    textPane.getDocument().addDocumentListener(new DocumentListener() {
        @Override
        public void insertUpdate(DocumentEvent evt) {
            searcher.search(word);
        }

        @Override
        public void removeUpdate(DocumentEvent evt) {
            searcher.search(word);
        }

        @Override
        public void changedUpdate(DocumentEvent evt) {
        }
    });
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.add(panel, "South");
    f.add(new JScrollPane(textPane), "Center");
    f.setSize(400, 400);
    f.setVisible(true);
}

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From source file:GTKLookAndFeelDemo.java

public static void main(String[] args) {
    try {/*from w w w  . j  av a2 s.c o m*/
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.gtk.GTKLookAndFeel");
    } catch (Exception e) {
        e.printStackTrace();
    }
    JLabel label = new JLabel("Label");
    JTextField field = new JTextField("www.java2s.com!");
    JList list = new JList(new String[] { "A", "B", "C" });
    JScrollPane listPane = new JScrollPane(list);
    listPane.setPreferredSize(new Dimension(250, 100));

    JScrollPane treePane = new JScrollPane(new JTree());
    treePane.setPreferredSize(new Dimension(250, 100));
    JButton button = new JButton("Click me");

    JPanel cp = new JPanel();
    cp.add(label);
    cp.add(field);
    cp.add(listPane);
    cp.add(treePane);
    cp.add(button);

    JFrame frame = new JFrame();
    frame.setTitle("Windows Look and Feel Demo");
    frame.setPreferredSize(new Dimension(280, 300));
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setContentPane(cp);
    frame.pack();
    frame.setVisible(true);

}

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