Example usage for javax.swing JButton JButton

Introduction

In this page you can find the example usage for javax.swing JButton JButton.

Prototype

public JButton(Action a) 

Source Link

Document

Creates a button where properties are taken from the Action supplied.

Usage

From source file:PassiveTextField1.java

public static void main(String[] args) {
    JFrame f = new JFrame("Passive Text Field");
    f.getContentPane().setLayout(new BoxLayout(f.getContentPane(), BoxLayout.Y_AXIS));
    final JTextField ptf = new JTextField(32);
    JTextField tf = new JTextField(32);
    JPanel p = new JPanel();
    JButton b = new JButton("OK");
    p.add(b);//  w w  w  .  j  a v  a  2s  . c o  m
    f.getContentPane().add(ptf);
    f.getContentPane().add(tf);
    f.getContentPane().add(p);

    Keymap map = ptf.getKeymap(); // Gets the shared map
    KeyStroke key = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0);
    map.removeKeyStrokeBinding(key);

    ActionListener l = new ActionListener() {
        public void actionPerformed(ActionEvent evt) {
            System.out.println("Action event from a text field");
        }
    };
    ptf.addActionListener(l);
    tf.addActionListener(l);

    // Make the button the default button
    f.getRootPane().setDefaultButton(b);
    b.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent evt) {
            System.out.println("Content of text field: <" + ptf.getText() + ">");
        }
    });
    f.pack();
    f.setVisible(true);
}

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From source file:GridBagWithAnchor.java

public static void main(String[] args) {
    JFrame f = new JFrame("Demonstrates the use of anchor constraints");
    JPanel p = new JPanel(new GridBagLayout());

    p.setLayout(new GridBagLayout());
    GridBagConstraints c = new GridBagConstraints();
    c.insets = new Insets(2, 2, 2, 2);
    c.weighty = 1.0;//from  w w w .j  a va  2s.co  m
    c.weightx = 1.0;
    c.gridx = 0;
    c.gridy = 0;
    c.gridheight = 2;
    c.anchor = GridBagConstraints.NORTH; // place component on the North
    p.add(new JButton("Java"), c);
    c.gridx = 1;
    c.gridheight = 1;
    c.gridwidth = 2;
    c.anchor = GridBagConstraints.SOUTHWEST;
    p.add(new JButton("Source"), c);
    c.gridy = 1;
    c.gridwidth = 1;
    c.anchor = GridBagConstraints.CENTER; // remember to rest to center
    p.add(new JButton("and"), c);
    c.gridx = 2;
    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:DocumentModel.java

public static void main(String[] args) {
    final StyledDocument doc;
    final JTextPane textpane;

    JFrame f = new JFrame();

    f.setTitle("Document Model");

    JToolBar toolbar = new JToolBar();
    JButton boldb = new JButton("bold");
    JButton italb = new JButton("italic");
    JButton strib = new JButton("strike");
    JButton undeb = new JButton("underline");

    toolbar.add(boldb);/*from w w w .  j a va2  s. co  m*/
    toolbar.add(italb);
    toolbar.add(strib);
    toolbar.add(undeb);

    f.add(toolbar, BorderLayout.NORTH);

    JPanel panel = new JPanel();
    panel.setLayout(new BorderLayout());
    panel.setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));

    JScrollPane pane = new JScrollPane();
    textpane = new JTextPane();
    textpane.setBorder(BorderFactory.createEmptyBorder(8, 8, 8, 8));

    doc = textpane.getStyledDocument();

    Style style = textpane.addStyle("Bold", null);
    StyleConstants.setBold(style, true);

    style = textpane.addStyle("Italic", null);
    StyleConstants.setItalic(style, true);

    style = textpane.addStyle("Underline", null);
    StyleConstants.setUnderline(style, true);

    style = textpane.addStyle("Strike", null);
    StyleConstants.setStrikeThrough(style, true);

    boldb.addActionListener(new ActionListener() {

        public void actionPerformed(ActionEvent e) {
            doc.setCharacterAttributes(textpane.getSelectionStart(),
                    textpane.getSelectionEnd() - textpane.getSelectionStart(), textpane.getStyle("Bold"),
                    false);
        }
    });

    italb.addActionListener(new ActionListener() {

        public void actionPerformed(ActionEvent e) {
            doc.setCharacterAttributes(textpane.getSelectionStart(),
                    textpane.getSelectionEnd() - textpane.getSelectionStart(), textpane.getStyle("Italic"),
                    false);
        }

    });

    strib.addActionListener(new ActionListener() {

        public void actionPerformed(ActionEvent e) {
            doc.setCharacterAttributes(textpane.getSelectionStart(),
                    textpane.getSelectionEnd() - textpane.getSelectionStart(), textpane.getStyle("Strike"),
                    false);
        }

    });

    undeb.addActionListener(new ActionListener() {

        public void actionPerformed(ActionEvent e) {
            doc.setCharacterAttributes(textpane.getSelectionStart(),
                    textpane.getSelectionEnd() - textpane.getSelectionStart(), textpane.getStyle("Underline"),
                    false);
        }
    });

    pane.getViewport().add(textpane);
    panel.add(pane);

    f.add(panel);

    f.setSize(new Dimension(380, 320));
    f.setLocationRelativeTo(null);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setVisible(true);

}

---

From source file:Main.java

public static void main(String[] args) {

    JFrame f = new JFrame();
    f.setTitle("Example2");
    f.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);

    JPanel p1 = new JPanel(new FlowLayout(FlowLayout.CENTER));
    p1.setBorder(new TitledBorder(new LineBorder(Color.BLACK), "JPanel 1"));
    for (int i = 0; i < NB1; i++)
        p1.add(new JButton("Button " + i));

    JPanel p2 = new JPanel(new FlowLayout(FlowLayout.CENTER));

    p2.setBorder(new TitledBorder(new LineBorder(Color.BLACK), "JPanel 2"));
    for (int i = NB1; i < NB2; i++)
        p2.add(new JButton("Button " + i));

    JPanel p3 = new JPanel(new FlowLayout(FlowLayout.CENTER));
    p3.setBorder(new TitledBorder(new LineBorder(Color.BLACK), "JPanel 3"));
    for (int i = NB2; i < NB3; i++)
        p3.add(new JButton("Button " + i));

    JPanel global = new JPanel(new GridBagLayout());
    GridBagConstraints gbc = new GridBagConstraints();
    gbc.fill = GridBagConstraints.HORIZONTAL; // added
    gbc.weightx = 1.0f; // added
    gbc.gridy = 0;/*from w  ww. j a v  a2s  .  c om*/
    global.add(p1, gbc);
    gbc.gridy++;
    global.add(p2, gbc);
    gbc.gridy++;
    global.add(p3, gbc);

    f.add(global);
    f.pack();
    f.setVisible(true);

}

---

From source file:LabelSampleLoadText.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Label Focus Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JPanel panel = new JPanel(new BorderLayout());
    JLabel label = new JLabel("Name: ");
    label.setDisplayedMnemonic(KeyEvent.VK_N);
    JTextField textField = new JTextField();
    label.setLabelFor(textField);/*from  ww  w .  j ava2s . c  o  m*/
    panel.add(label, BorderLayout.WEST);
    panel.add(textField, BorderLayout.CENTER);
    frame.add(panel, BorderLayout.NORTH);
    frame.add(new JButton("Somewhere Else"), BorderLayout.SOUTH);
    frame.setSize(250, 150);
    frame.setVisible(true);

    FileReader reader = null;
    try {
        String filename = "test.txt";
        reader = new FileReader(filename);
        textField.read(reader, filename);
    } catch (IOException exception) {
        System.err.println("Load oops");
    } finally {
        if (reader != null) {
            try {
                reader.close();
            } catch (IOException exception) {
                System.err.println("Error closing reader");
                exception.printStackTrace();
            }
        }
    }

}

---

From source file:LabelSampleSaveText.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Label Focus Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JPanel panel = new JPanel(new BorderLayout());
    JLabel label = new JLabel("Name: ");
    label.setDisplayedMnemonic(KeyEvent.VK_N);
    JTextField textField = new JTextField();
    label.setLabelFor(textField);/*from w w  w  . j av a 2  s. c o m*/
    panel.add(label, BorderLayout.WEST);
    panel.add(textField, BorderLayout.CENTER);
    frame.add(panel, BorderLayout.NORTH);
    frame.add(new JButton("Somewhere Else"), BorderLayout.SOUTH);
    frame.setSize(250, 150);
    frame.setVisible(true);

    textField.setText("your text");
    String filename = "test.txt";

    FileWriter writer = null;
    try {
        writer = new FileWriter(filename);
        textField.write(writer);
    } catch (IOException exception) {
        System.err.println("Save oops");
    } finally {
        if (writer != null) {
            try {
                writer.close();
            } catch (IOException exception) {
                System.err.println("Error closing writer");
                exception.printStackTrace();
            }
        }
    }
}

---

From source file:Main.java

public static void main(String[] args) {
    JFrame frame = new JFrame();

    JTextPane codearea = new JTextPane();
    JScrollPane scroll;/*from www.  ja v  a  2 s.c  o m*/
    scroll = new JScrollPane(codearea, ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
            ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
    scroll.setPreferredSize(new Dimension(300, 300));

    JPanel panel = new JPanel(new BorderLayout());
    panel.add(scroll, BorderLayout.CENTER);
    JButton comp = new JButton("Print text");
    comp.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            System.out.println(codearea.getText());
        }
    });
    panel.add(comp, BorderLayout.SOUTH);

    frame.getContentPane().add(panel);
    frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    frame.pack();
    frame.setVisible(true);

}

---

From source file:GlueSample.java

public static void main(String args[]) {
    Box horizontalBox;//from w  ww  . ja v  a 2s  .  co  m
    JPanel panel;
    JFrame frame = new JFrame("Horizontal Glue");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    Container contentPane = frame.getContentPane();
    contentPane.setLayout(new GridLayout(0, 1));

    horizontalBox = Box.createHorizontalBox();
    horizontalBox.add(Box.createGlue());
    horizontalBox.add(new JButton("Left"));
    horizontalBox.add(new JButton("Middle"));
    horizontalBox.add(new JButton("Right"));
    panel = new JPanel(new BorderLayout());
    panel.add(horizontalBox);
    panel.setBorder(BorderFactory.createTitledBorder("Beginning Glue"));
    contentPane.add(panel);

    horizontalBox = Box.createHorizontalBox();
    horizontalBox.add(new JButton("Left"));
    horizontalBox.add(Box.createGlue());
    horizontalBox.add(new JButton("Middle"));
    horizontalBox.add(Box.createGlue());
    horizontalBox.add(new JButton("Right"));
    panel = new JPanel(new BorderLayout());
    panel.add(horizontalBox);
    panel.setBorder(BorderFactory.createTitledBorder("2 Middle Glues"));
    contentPane.add(panel);

    horizontalBox = Box.createHorizontalBox();
    horizontalBox.add(Box.createGlue());
    horizontalBox.add(new JButton("Left"));
    horizontalBox.add(new JButton("Middle"));
    horizontalBox.add(new JButton("Right"));
    horizontalBox.add(Box.createGlue());
    panel = new JPanel(new BorderLayout());
    panel.add(horizontalBox);
    panel.setBorder(BorderFactory.createTitledBorder("Beginning/End Glues"));
    contentPane.add(panel);

    horizontalBox = Box.createHorizontalBox();
    horizontalBox.add(new JButton("Left"));
    horizontalBox.add(new JButton("Middle"));
    horizontalBox.add(new JButton("Right"));
    panel = new JPanel(new BorderLayout());
    horizontalBox.add(Box.createGlue());
    panel.add(horizontalBox);
    panel.setBorder(BorderFactory.createTitledBorder("End Glue"));
    contentPane.add(panel);

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

---

From source file:GridBagLayoutGridHeight.java

public static void main(String[] args) {
    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container pane = f.getContentPane();
    pane.setLayout(new GridBagLayout());
    GridBagConstraints gbc = new GridBagConstraints();
    pane.add(new JLabel("First row, first column"), gbc);
    pane.add(new JLabel("First row, second column"), gbc);
    gbc.gridheight = GridBagConstraints.REMAINDER;
    gbc.fill = GridBagConstraints.VERTICAL;
    pane.add(new JLabel("First row, third column"), gbc);
    gbc.gridx = 0;/*from w ww  .  j  a v a 2 s.c  o  m*/
    gbc.gridheight = 1;
    gbc.fill = GridBagConstraints.NONE;
    pane.add(new JButton("Second row"), gbc);
    pane.add(new JButton("Third row"), gbc);
    f.setSize(600, 300);
    f.setVisible(true);
}

---

From source file:ButtonCornerSample.java

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

    Icon acrossLogo = new ImageIcon("logo-across.jpg");
    Icon downLogo = new ImageIcon("logo-down.jpg");
    Icon bookCover = new ImageIcon("puzzlebook.jpg");
    JLabel columnLabel = new JLabel(acrossLogo);
    JLabel rowLabel = new JLabel(downLogo);
    JLabel coverLabel = new JLabel(bookCover);
    JButton button = new JButton("+");
    button.setFont(new Font("Monospaced", Font.PLAIN, 8));
    JScrollPane scrollPane = new JScrollPane(coverLabel);
    scrollPane.setCorner(JScrollPane.UPPER_LEFT_CORNER, button);
    scrollPane.setColumnHeaderView(columnLabel);
    scrollPane.setRowHeaderView(rowLabel);

    ActionListener actionListener = new JScrollPaneToTopAction(scrollPane);
    button.addActionListener(actionListener);

    frame.getContentPane().add(scrollPane, BorderLayout.CENTER);
    frame.setSize(300, 200);// w w  w. j av  a  2 s  .  c o  m
    frame.setVisible(true);
}

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