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) {
    final int columnCount = 10;
    final int side = 25;
    final int[][] grid = new int[50][columnCount];

    JPanel panel = new JPanel() {
        public void paintComponent(Graphics g) {
            Font font = new Font("WingDings", Font.PLAIN, 14);
            g.setFont(font);/*from  w w w.  j  a  va  2  s  .  c o  m*/
            int off = 0;
            for (int i = 0; i < 256 * 256; i++) {
                if (font.canDisplay((char) i) == false) {
                    continue;
                }
                off++;
                grid[off / columnCount][off % columnCount] = i;
                int x = off % columnCount * side;
                int y = (off / columnCount) * side + side;
                g.drawString(Character.toString((char) i), x, y);

            }
        }
    };
    JFrame frame = new JFrame();
    panel.setSize(300, 300);
    frame.getContentPane().add(panel);
    frame.setSize(300, 300);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String[] args) {

    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

    JPanel panel = new JPanel();
    Container c = frame.getContentPane();
    panel.setSize(100, 100);//from   w w  w  .  j  a v a 2  s  .c o m
    panel.setLayout(new GridLayout(1000, 1));
    for (int i = 0; i < 1000; i++)
        panel.add(new JLabel("JLabel " + i));

    JScrollPane jsp = new JScrollPane(panel);
    c.add(jsp);
    frame.setSize(100, 100);
    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 panel = new JPanel() {
        @Override/*from w ww.  j a  v a  2s. c om*/
        protected void paintComponent(Graphics g) {
            super.paintComponent(g);
            int y = 0;
            for (int size = 4; size <= 24; size += 2) {
                g.setFont(new Font("Arial", Font.BOLD, size));
                g.drawString("Name", 0, y);
                int heightOfFont = g.getFontMetrics().getHeight();
                y += heightOfFont;
            }
        }

        @Override
        public Dimension getPreferredSize() {
            return new Dimension(300, 300);
        }
    };
    frame.add(panel);
    frame.setLocationByPlatform(true);
    frame.setVisible(true);
    frame.pack();

}

From source file:ImageTest.java

public static void main(String[] args) {
    JPanel panel = new JPanel();
    final ImageButton button = new ImageButton("button.png");
    button.setPressedIcon(new ImageIcon("down.png"));
    button.setRolloverIcon(new ImageIcon("over.png"));
    button.setSelectedIcon(new ImageIcon("sel.png"));
    button.setRolloverSelectedIcon(new ImageIcon("sel-over.png"));
    button.setDisabledIcon(new ImageIcon("disabled.png"));
    button.setDisabledSelectedIcon(new ImageIcon("disabled-selected.png"));
    button.setLocation(60, 74);//from   w  w  w  .  j  a v a  2s.c  o m
    button.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent evt) {
            button.setSelected(!button.isSelected());
            System.out.println("selecting");
        }
    });
    // button.setSelected(true);
    // button.setDisabled(false);
    panel.add(button);

    JFrame frame = new JFrame();
    frame.getContentPane().add(panel);
    frame.pack();
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String[] args) {
    JFrame f = new JFrame("This is BOX LAYOUT");
    JPanel panel1 = new JPanel();
    panel1.setLayout(new BoxLayout(panel1, BoxLayout.Y_AXIS));
    panel1.setBackground(Color.yellow);

    JPanel panel2 = new JPanel();
    panel2.setLayout(new FlowLayout());
    panel2.setBackground(Color.ORANGE);

    for (int i = 0; i < 5; i++)
        panel1.add(new JCheckBox("CheckBox " + (i + 1)));

    f.add(panel1, BorderLayout.WEST);
    f.add(panel2, BorderLayout.CENTER);
    f.setVisible(true);/*  ww w.  j a  va  2s .c  o  m*/
    f.setSize(300, 300);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

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.setOpaque(true);/*from   www  .  ja va2 s  .  c o m*/
    contentPane.setBackground(Color.WHITE);
    contentPane.setLayout(null);

    JLabel label = new JLabel("This JPanel uses Absolute Positioning", JLabel.CENTER);
    label.setSize(300, 30);
    label.setLocation(5, 5);

    JButton button = new JButton("USELESS");
    button.setSize(100, 30);
    button.setLocation(95, 45);

    contentPane.add(label);
    contentPane.add(button);

    frame.setContentPane(contentPane);
    frame.setSize(310, 125);
    frame.setLocationByPlatform(true);
    frame.setVisible(true);
}

From source file:BoxLayoutDemo.java

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

    JPanel panel = new JPanel();
    LayoutManager layout = new BoxLayout(panel, BoxLayout.X_AXIS);
    panel.setLayout(layout);//  w w w.j av  a2  s  . c o m

    panel.add(new JLabel("a"));
    panel.add(new JLabel("b"));
    panel.add(new JLabel("c"));
    panel.add(new JLabel("d"));
    panel.add(new JLabel("e"));
    panel.add(new JLabel("f"));

    frame.add(panel);

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

From source file:Main.java

public static void main(String[] args) {
    JFrame frame = new JFrame();
    JPanel panel = new JPanel();
    frame.setSize(300, 200);//from w  ww . j ava 2  s . c o m
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JButton redButton = new JButton("Red");
    JButton greenButton = new JButton("Green");
    JButton blueButton = new JButton("Blue");
    class Listener extends JPanel implements ActionListener {
        public void actionPerformed(ActionEvent event) {
            Color color;
            if (event.getSource() == redButton) {
                color = Color.red;
                redButton.setBackground(color);
                panel.setBackground(color);
            } else if (event.getSource() == greenButton) {
                color = Color.green;
                greenButton.setBackground(color);
                panel.setBackground(color);
            } else {
                color = Color.blue;
                blueButton.setBackground(color);
                panel.setBackground(color);
            }
            setBackground(color);
            repaint();
        }
    }
    redButton.addActionListener(new Listener());
    greenButton.addActionListener(new Listener());
    blueButton.addActionListener(new Listener());
    panel.add(redButton);
    panel.add(greenButton);
    panel.add(blueButton);
    frame.add(panel);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String[] args) {

    JFrame frame = new JFrame();

    JButton btn = new JButton("Test");

    JPanel panel = new JPanel();
    panel.add(btn);//from w  w  w.  j av  a 2s. com

    JTabbedPane tabbedPane = new JTabbedPane();
    tabbedPane.add("Tab1", panel);

    frame.add(tabbedPane, BorderLayout.CENTER);

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.pack();
    frame.setMinimumSize(new Dimension(300, 300));
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String[] argv) {
    JFrame f = new JFrame();
    f.setLayout(new BorderLayout());

    JPanel panel = new JPanel();
    JButton button = new JButton("A-ha!");
    button.setAlignmentX(Component.CENTER_ALIGNMENT);
    panel.setLayout(new BoxLayout(panel, BoxLayout.PAGE_AXIS));
    panel.add(Box.createVerticalGlue());
    panel.add(button);/*from w  w w .j  a  v a 2s . c o m*/
    panel.add(Box.createVerticalGlue());

    f.getContentPane().add(panel);

    f.setVisible(true);
}