Example usage for javax.swing JTextArea setText

Introduction

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

Prototype

@BeanProperty(bound = false, description = "the text of this component")
public void setText(String t) 

Source Link

Document

Sets the text of this TextComponent to the specified text.

Usage

From source file:TextAreaViews.java

public static void main(String[] args) {
    try {//  w ww. j  a  va 2  s  . co 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) {
    }
}

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From source file:CornerCaret.java

public static void main(String args[]) {
    JFrame frame = new JFrame("CornerCaret demo");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JTextArea area = new JTextArea(8, 32);
    area.setCaret(new CornerCaret());
    area.setText("This is the story\nof the hare who\nlost his spectacles.");
    frame.getContentPane().add(new JScrollPane(area), BorderLayout.CENTER);
    frame.pack();/*from   ww  w . j  a  v  a2 s. c  om*/
    frame.setVisible(true);
}

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From source file:FancyCaret.java

public static void main(String args[]) {
    JFrame frame = new JFrame("FancyCaret demo");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JTextArea area = new JTextArea(8, 32);
    area.setCaret(new FancyCaret());
    area.setText("VI\tVirgin Islands \nVA      Virginia\nVT\tVermont");
    frame.getContentPane().add(new JScrollPane(area), BorderLayout.CENTER);
    frame.pack();//from  w  ww  .  j  a  v  a2  s . com
    frame.setVisible(true);
}

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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.setLayout(new GridLayout(1, 2, 2, 2));

    JTextArea tArea1 = new JTextArea();
    tArea1.setLineWrap(true);/* www. j ava2  s  .  c  o  m*/
    JTextArea tArea2 = new JTextArea();
    tArea2.setLineWrap(true);
    tArea1.setText("I got a long long line of text in my JTextArea");
    tArea2.setText("I got a long long line of text in my JTextArea");

    JScrollPane scroller1 = new JScrollPane();
    JScrollPane scroller2 = new JScrollPane();
    scroller1.setViewportView(tArea1);
    scroller2.setViewportView(tArea2);

    contentPane.add(scroller1);
    contentPane.add(scroller2);

    frame.setContentPane(contentPane);
    frame.setSize(100, 100);
    frame.setLocationByPlatform(true);
    frame.setVisible(true);

}

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From source file:LineHighlightPainter.java

public static void main(String args[]) {

    // extend DefaultCaret as an anonymous inner class
    Caret lineHighlightPainterCaret = new DefaultCaret() {
        private Highlighter.HighlightPainter lhp = new LineHighlightPainter();

        // override getSelectionPainter to return the LineHighlightPainter
        protected Highlighter.HighlightPainter getSelectionPainter() {
            return lhp;
        }/*from   w w  w  .  j a v a  2s .co m*/
    };

    JFrame frame = new JFrame("LineHighlightPainter demo");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JTextArea area = new JTextArea(9, 45);
    area.setCaret(lineHighlightPainterCaret);
    area.setLineWrap(true);
    area.setWrapStyleWord(true);
    area.setText("This is the story\nof the hare who\nlost his spectacles.");
    frame.getContentPane().add(new JScrollPane(area), BorderLayout.CENTER);
    frame.pack();
    frame.setVisible(true);
}

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From source file:com.novadart.silencedetect.SilenceDetect.java

public static void main(String[] args) {

    // create the parser
    CommandLineParser parser = new BasicParser();
    try {//from w w  w .j a  v  a  2 s .  c  om
        // parse the command line arguments
        CommandLine line = parser.parse(OPTIONS, args);

        if (line.hasOption("h")) {

            printHelp();

        } else {

            String decibels = "-10";
            if (line.hasOption("b")) {
                decibels = "-" + line.getOptionValue("b");
            } else {
                throw new RuntimeException();
            }

            String videoFile = null;

            if (line.hasOption("i")) {

                videoFile = line.getOptionValue("i");

                Boolean debug = line.hasOption("d");

                if (line.hasOption("t")) {

                    System.out.println(printAudioTracksList(videoFile, debug));

                } else if (line.hasOption("s")) {

                    int trackNumber = Integer.parseInt(line.getOptionValue("s"));
                    System.out.println(printAudioTrackSilenceDuration(videoFile, trackNumber, decibels, debug));

                } else {

                    printHelp();

                }

            } else if (line.hasOption("-j")) {

                // choose file
                final JFileChooser fc = new JFileChooser();
                fc.setVisible(true);
                int returnVal = fc.showOpenDialog(null);
                if (returnVal == JFileChooser.APPROVE_OPTION) {

                    videoFile = fc.getSelectedFile().getAbsolutePath();

                } else {
                    return;
                }

                JTextArea tracks = new JTextArea();
                tracks.setText(printAudioTracksList(videoFile, true));
                JSpinner trackNumber = new JSpinner();
                trackNumber.setValue(1);
                final JComponent[] inputs = new JComponent[] { new JLabel("Audio Tracks"), tracks,
                        new JLabel("Track to analyze"), trackNumber };
                JOptionPane.showMessageDialog(null, inputs, "Select Audio Track", JOptionPane.PLAIN_MESSAGE);

                JTextArea results = new JTextArea();
                results.setText(printAudioTrackSilenceDuration(videoFile, (int) trackNumber.getValue(),
                        decibels, false));
                final JComponent[] resultsInputs = new JComponent[] { new JLabel("Results"), results };
                JOptionPane.showMessageDialog(null, resultsInputs, "RESULTS!", JOptionPane.PLAIN_MESSAGE);

            } else {
                printHelp();
                return;
            }

        }

    } catch (ParseException | IOException | InterruptedException exp) {
        // oops, something went wrong
        System.out.println("There was a problem :(\nReason: " + exp.getMessage());
    }
}

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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//from  w w  w.j av  a2s.  co  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);
}

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From source file:ThreadLister.java

/**
 * The main() method create a simple graphical user interface to display the
 * threads in. This allows us to see the "event dispatch thread" used by AWT
 * and Swing.// w ww  .j  a va 2s  .c om
 */
public static void main(String[] args) {
    // Create a simple Swing GUI
    JFrame frame = new JFrame("ThreadLister Demo");
    JTextArea textarea = new JTextArea();
    frame.getContentPane().add(new JScrollPane(textarea), BorderLayout.CENTER);
    frame.setSize(500, 400);
    frame.setVisible(true);

    // Get the threadlisting as a string using a StringWriter stream
    StringWriter sout = new StringWriter(); // To capture the listing
    PrintWriter out = new PrintWriter(sout);
    ThreadLister.listAllThreads(out); // List threads to stream
    out.close();
    String threadListing = sout.toString(); // Get listing as a string

    // Finally, display the thread listing in the GUI
    textarea.setText(threadListing);
}

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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);//  w w  w.j  a v a 2 s .c o 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);
}

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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);//  ww  w  .j ava  2 s .  com

    JFrame f = new JFrame("KeymapExample");
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.getContentPane().add(new JScrollPane(area), BorderLayout.CENTER);
    area.setText("www.\n java2s \n .com.");
    f.pack();
    f.setVisible(true);
}

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