Example usage for javax.swing JTextArea JTextArea

Introduction

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

Prototype

public JTextArea(int rows, int columns) 

Source Link

Document

Constructs a new empty TextArea with the specified number of rows and columns.

Usage

From source file:Main.java

public static void main(String[] args) {
    JProgressBar pb = new JProgressBar();
    JTextArea ta = new JTextArea(10, 20);

    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setLayout(new BorderLayout());
    frame.add(new JScrollPane(ta));
    frame.add(pb, BorderLayout.SOUTH);
    frame.pack();//  w w w. j  av  a2s  .  c o  m
    frame.setVisible(true);

    Timer timer = new Timer(250, new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            index++;
            if (index >= 100) {
                ((Timer) (e.getSource())).stop();
            }
            ta.append("Line " + index + "\n");
            pb.setValue(index);
        }
    });
    timer.setRepeats(true);
    timer.setCoalesce(true);
    timer.start();
}

---

From source file:TextAreaElements.java

public static void main(String[] args) {
    try {//from   ww w .  j av a 2 s  .  c  o  m
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
    } catch (Exception evt) {
    }

    JFrame f = new JFrame("Text Area Elements");
    JTextArea ta = new JTextArea(5, 32);
    ta.setText("That's one small step for man...\nOne giant leap for mankind.");
    f.getContentPane().add(ta);
    f.pack();
    f.setVisible(true);

    ((AbstractDocument) ta.getDocument()).dump(System.out);
}

---

From source file:Main.java

public static void main(String[] args) {
    JProgressBar pb = new JProgressBar();
    JTextArea ta = new JTextArea(10, 20);

    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(new JScrollPane(ta));
    frame.add(pb, BorderLayout.SOUTH);
    frame.pack();/*from  w w w.jav a2  s.  com*/
    frame.setVisible(true);

    new BackgroundWorker(ta, pb).execute();
}

---

From source file:DnDBetweenJTextAreaAndJTextFieldDemo.java

public static void main(String[] args) {
    JFrame frame = new JFrame("Drag and Drop Demo");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setContentPane(new JPanel());
    JTextField textField = new JTextField(25);
    textField.setText("www.java2s.com");
    frame.add(textField);/*  w  w  w. ja v  a 2 s.  com*/

    JTextArea textArea = new JTextArea(4, 25);
    textArea.setText("Demonstrating\ndrag and drop");
    frame.getContentPane().add(new JScrollPane(textArea));
    textArea.setDragEnabled(true);
    textField.setDragEnabled(true);
    frame.pack();
    frame.setVisible(true);

}

---

From source file:Main.java

public static void main(String[] args) {
    JPanel panel = new JPanel(new BorderLayout());
    String[] values = new String[] { "One", "Two", "Three" };
    JComboBox<String> comboBox = new JComboBox<>(values);
    panel.add(comboBox, BorderLayout.NORTH);
    JTextArea textArea = new JTextArea(2, 2);
    panel.add(textArea, BorderLayout.CENTER);
    JButton button = new JButton("Action");
    button.addActionListener(new ActionListener() {
        @Override//  www  . j  av  a  2 s. c  o m
        public void actionPerformed(ActionEvent e) {
            textArea.setText((String) comboBox.getSelectedItem());
            comboBox.setSelectedIndex(0);
        }
    });
    panel.add(button, BorderLayout.SOUTH);
    JFrame frame = new JFrame();
    frame.add(panel);
    frame.pack();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);
}

---

From source file:Main.java

public static void main(String[] args) {
    JTextArea textArea = new JTextArea(10, 20);
    final JProgressBar progressBar = new JProgressBar(0, 10);

    final CounterTask task = new CounterTask();
    task.addPropertyChangeListener(new PropertyChangeListener() {
        public void propertyChange(PropertyChangeEvent evt) {
            if ("progress".equals(evt.getPropertyName())) {
                progressBar.setValue((Integer) evt.getNewValue());
            }/*www.  ja  v  a 2 s .  c  o m*/
        }
    });
    JButton startButton = new JButton("Start");
    startButton.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            task.execute();
        }
    });

    JButton cancelButton = new JButton("Cancel");
    cancelButton.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            task.cancel(true);
        }
    });

    JPanel buttonPanel = new JPanel();
    buttonPanel.add(startButton);
    buttonPanel.add(cancelButton);

    JPanel cp = new JPanel();
    LayoutManager layout = new BoxLayout(cp, BoxLayout.Y_AXIS);
    cp.setLayout(layout);
    cp.add(buttonPanel);
    cp.add(new JScrollPane(textArea));
    cp.add(progressBar);

    JFrame frame = new JFrame("SwingWorker Demo");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setContentPane(cp);
    frame.pack();
    frame.setVisible(true);
}

---

From source file:Main.java

public static void main(String[] args) {
    JTextArea area = new JTextArea(6, 32);
    Keymap parent = area.getKeymap();
    Keymap newmap = JTextComponent.addKeymap("KeymapExampleMap", parent);

    KeyStroke u = KeyStroke.getKeyStroke(KeyEvent.VK_U, InputEvent.CTRL_MASK);
    Action actionU = new UppercaseAction();
    newmap.addActionForKeyStroke(u, actionU);

    Action actionList[] = area.getActions();
    Hashtable lookup = new Hashtable();
    for (int j = 0; j < actionList.length; j += 1)
        lookup.put(actionList[j].getValue(Action.NAME), actionList[j]);

    KeyStroke L = KeyStroke.getKeyStroke(KeyEvent.VK_L, InputEvent.CTRL_MASK);
    Action actionL = (Action) lookup.get(DefaultEditorKit.selectLineAction);
    newmap.addActionForKeyStroke(L, actionL);

    area.setKeymap(newmap);//from  www  .j  a  v a  2s. co m

    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.add(new JScrollPane(area), BorderLayout.CENTER);
    area.setText("this is a test");
    f.setSize(300, 300);
    f.setVisible(true);
}

---

From source file:KeymapExample.java

public static void main(String[] args) {
    JTextArea area = new JTextArea(6, 32);
    Keymap parent = area.getKeymap();
    Keymap newmap = JTextComponent.addKeymap("KeymapExampleMap", parent);

    KeyStroke u = KeyStroke.getKeyStroke(KeyEvent.VK_U, InputEvent.CTRL_MASK);
    Action actionU = new UpWord();
    newmap.addActionForKeyStroke(u, actionU);

    Action actionList[] = area.getActions();
    Hashtable lookup = new Hashtable();
    for (int j = 0; j < actionList.length; j += 1)
        lookup.put(actionList[j].getValue(Action.NAME), actionList[j]);

    KeyStroke L = KeyStroke.getKeyStroke(KeyEvent.VK_L, InputEvent.CTRL_MASK);
    Action actionL = (Action) lookup.get(DefaultEditorKit.selectLineAction);
    newmap.addActionForKeyStroke(L, actionL);

    KeyStroke W = KeyStroke.getKeyStroke(KeyEvent.VK_W, InputEvent.CTRL_MASK);
    Action actionW = (Action) lookup.get(DefaultEditorKit.selectWordAction);
    newmap.addActionForKeyStroke(W, actionW);

    area.setKeymap(newmap);//w ww .  ja va 2  s . co m

    JFrame f = new JFrame("KeymapExample");
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.getContentPane().add(new JScrollPane(area), BorderLayout.CENTER);
    area.setText("This is a test.");
    f.pack();
    f.setVisible(true);
}

---

From source file:TextAreaViews.java

public static void main(String[] args) {
    try {/*from w w  w.  j ava  2s. c o  m*/
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
    } catch (Exception evt) {
    }

    JFrame f = new JFrame("Text Area Views");
    JTextArea ta = new JTextArea(5, 32);
    ta.setText("That's one small step for man...\nOne giant leap for mankind.");

    f.getContentPane().add(ta);
    f.setSize(200, 100);
    f.setVisible(true);

    ViewDisplayer.displayViews(ta, System.out);

    try {
        Thread.sleep(30000);
        ViewDisplayer.displayViews(ta, System.out);
    } catch (InterruptedException e) {
    }
}

---

From source file:Main.java

public static void main(String[] args) {
    String[] ITEMS1 = { "one", "two", "three", "four", "five" };
    String[] ITEMS2 = { "Monday", "Tuesday", "Wednesday", "Thursday", "Friday" };

    JPanel northPanel = new JPanel();
    northPanel.add(new JCheckBox("Reminder"));
    northPanel.add(new JComboBox(ITEMS1));
    northPanel.add(new JComboBox(ITEMS2));

    JPanel p = new JPanel(new BorderLayout());

    p.add(northPanel, BorderLayout.NORTH);
    p.add(new JScrollPane(new JTextArea(8, 30)), BorderLayout.CENTER);

    JFrame frame = new JFrame();
    frame.getContentPane().add(p);/*from   ww  w.jav a 2 s .c  o  m*/
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.pack();
    frame.setVisible(true);
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• »