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

    JPanel controlPane = new JPanel();
    JPanel buttonPane = new JPanel();

    controlPane.setLayout(new BoxLayout(controlPane, BoxLayout.PAGE_AXIS));
    controlPane.setPreferredSize(new Dimension(200, 200));
    controlPane.add(new JScrollPane(new JTextArea()));

    buttonPane.setLayout(new FlowLayout(FlowLayout.LEFT));
    buttonPane.setPreferredSize(new Dimension(100, 40));
    buttonPane.add(new JButton("Button1"));
    buttonPane.add(new JButton("Button2"));

    frame.add(controlPane, BorderLayout.NORTH);
    frame.add(buttonPane, BorderLayout.SOUTH);

    frame.pack();//w  ww  .j  ava2  s  .com
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String[] args) {
    JFrame window = new JFrame("Example");

    JPanel contentPane = new JPanel();

    contentPane.setLayout(new GridBagLayout());

    JComboBox comboBoxfields = new JComboBox(COMBO_BOX_ELEMENTS);

    comboBoxfields.setFont(new Font("sansserif", Font.TRUETYPE_FONT | Font.PLAIN, 15));
    comboBoxfields.setBorder(new SoftBevelBorder(BevelBorder.LOWERED));

    comboBoxfields.setMaximumRowCount(5);

    comboBoxfields.addActionListener(//w  w w. j  av a2  s .co m
            e -> System.out.println("'" + comboBoxfields.getSelectedItem().toString() + "'" + " was selected"));

    contentPane.add(comboBoxfields);

    window.add(contentPane);
    window.setSize(500, 500);
    window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    window.setVisible(true);
}

From source file:Main.java

public static void main(String[] args) {
    JPanel topPanel = new JPanel();
    topPanel.setPreferredSize(new Dimension(200, 200));
    topPanel.setBackground(Color.WHITE);

    JTextArea chatArea = new JTextArea();
    JScrollPane scrollPane = new JScrollPane(chatArea);

    JPanel mainPanel = new JPanel(new BorderLayout(5, 5));
    mainPanel.setBorder(new EmptyBorder(5, 5, 5, 5));
    mainPanel.add(topPanel, BorderLayout.CENTER);
    mainPanel.add(scrollPane, BorderLayout.SOUTH);

    chatArea.getDocument().addDocumentListener(new DocumentListener() {

        @Override//www . j a v a  2  s . co m
        public void insertUpdate(DocumentEvent e) {
            updateLineCount();
        }

        @Override
        public void removeUpdate(DocumentEvent e) {
            updateLineCount();
        }

        @Override
        public void changedUpdate(DocumentEvent e) {
            updateLineCount();
        }

        private void updateLineCount() {
            int lineCount = chatArea.getLineCount();
            if (lineCount <= 4) {
                chatArea.setRows(lineCount);
                mainPanel.revalidate();
            }
        }
    });

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

From source file:OverlaySample.java

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

    JPanel panel = new JPanel() {
        public boolean isOptimizedDrawingEnabled() {
            return false;
        }//from  w w w .  j a va  2 s .  c o  m
    };
    LayoutManager overlay = new OverlayLayout(panel);
    panel.setLayout(overlay);

    JButton button = new JButton("Small");
    button.setMaximumSize(new Dimension(25, 25));
    button.setBackground(Color.white);
    panel.add(button);

    button = new JButton("Medium");
    button.setMaximumSize(new Dimension(50, 50));
    button.setBackground(Color.gray);
    panel.add(button);

    button = new JButton("Large");
    button.setMaximumSize(new Dimension(100, 100));
    button.setBackground(Color.black);
    panel.add(button);

    frame.add(panel, BorderLayout.CENTER);

    frame.setSize(400, 300);
    frame.setVisible(true);
}

From source file:Main.java

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

    JPanel buttonPanel = new JPanel();
    JButton nextButton = new JButton("Next");
    buttonPanel.add(nextButton);//w ww  .  j  a v a2 s.  c  o  m
    contentPane.add(buttonPanel, BorderLayout.SOUTH);

    final JPanel cardPanel = new JPanel();
    final CardLayout cardLayout = new CardLayout();
    cardPanel.setLayout(cardLayout);

    for (int i = 1; i <= 5; i++) {
        JButton card = new JButton("Card " + i);
        card.setPreferredSize(new Dimension(200, 200));
        String cardName = "card" + 1;
        cardPanel.add(card, cardName);
    }
    contentPane.add(cardPanel, BorderLayout.CENTER);
    nextButton.addActionListener(e -> cardLayout.next(cardPanel));

    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 contentPane = new JPanel();
    JTextField tField = new JTextField(10);
    ((AbstractDocument) tField.getDocument()).setDocumentFilter(new MyDocumentFilter());
    contentPane.add(tField);/*from  w  ww.j av a2s . com*/

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

From source file:Main.java

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

    JPanel panel = new JPanel() {
        public boolean isOptimizedDrawingEnabled() {
            return false;
        }//w  w w.  j a v a 2s .c  o m
    };
    LayoutManager overlay = new OverlayLayout(panel);
    panel.setLayout(overlay);

    JButton button = new JButton("Small");
    button.setMaximumSize(new Dimension(25, 25));
    button.setBackground(Color.white);
    button.setAlignmentX(0.0f);
    button.setAlignmentY(0.0f);
    panel.add(button);

    button = new JButton("Medium");
    button.setMaximumSize(new Dimension(50, 50));
    button.setBackground(Color.gray);
    button.setAlignmentX(0.0f);
    button.setAlignmentY(0.0f);
    panel.add(button);

    button = new JButton("Large");
    button.setMaximumSize(new Dimension(100, 100));
    button.setBackground(Color.black);
    button.setAlignmentX(0.0f);
    button.setAlignmentY(0.0f);
    panel.add(button);

    frame.add(panel, BorderLayout.CENTER);

    frame.setSize(400, 300);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String[] args) {
    JFrame aWindow = new JFrame("This is a Border Layout");
    aWindow.setBounds(30, 30, 300, 300);
    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 ww  w .  ja  v  a 2  s  .c  o  m*/
    System.out.println(set);
    p.setFocusTraversalKeys(KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, set);
    aWindow.add(p);
    aWindow.setVisible(true);
}

From source file:Main.java

public static void main(String[] args) {
    JFrame frame = new JFrame();
    JComponent button = new JButton("Cut");
    String tooltiptext = "<html>" + "This is the " + "<img src=\"file:cut.gif\">" + " tool tip text."
            + "</html>";
    button.setToolTipText(tooltiptext);//from   w  ww  .  j a  v  a2  s . c o  m
    JPanel panel = new JPanel();
    panel.add(button);
    frame.add(panel, BorderLayout.CENTER);
    frame.setSize(400, 400);
    frame.setVisible(true);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

From source file:Main.java

public static void main(String[] args) {
    JFrame fr = new JFrame();
    JPanel p = new JPanel();
    p.setLayout(new BorderLayout());
    String[] ss = new String[] { "112", "1223", "1124", "1134" };
    fr.getContentPane().add(p);/*  ww w .jav  a  2  s.  c om*/
    AutoCompleteComboBox cb = new AutoCompleteComboBox(ss);

    p.add("South", cb);
    p.add("Center", new JButton("test combo box"));
    fr.pack();
    fr.setVisible(true);
}