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) {

    JPanel ui = new JPanel(new BorderLayout(2, 2));
    ui.setBorder(new EmptyBorder(4, 4, 4, 4));

    JPanel controls = new JPanel(new BorderLayout(2, 2));
    ui.add(controls, BorderLayout.PAGE_START);
    String s = new String(Character.toChars(8594));
    String[] items = { "Choice: right " + s + " arrow" };
    JComboBox cb = new JComboBox(items);
    controls.add(cb, BorderLayout.CENTER);
    controls.add(new JButton("Button"), BorderLayout.LINE_END);

    JSplitPane sp = new JSplitPane(JSplitPane.VERTICAL_SPLIT, new JTextArea(4, 40), new JTextArea(4, 40));

    ui.add(sp, BorderLayout.CENTER);

    JFrame f = new JFrame("Stretch Combo Layout");
    f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
    f.setContentPane(ui);// w w  w  .  j a v  a  2s . c o m
    f.pack();
    f.setLocationByPlatform(true);
    f.setVisible(true);

}

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From source file:Main.java

public static void main(String[] args) {
    int BTN_COUNT = 3;
    int VERT_GAP = 10;
    int EB_GAP = 5;
    float TITLE_SIZE = 36f;
    String TITLE_TEXT = "This is my Title";

    JLabel titleLabel = new JLabel(TITLE_TEXT, SwingConstants.CENTER);
    titleLabel.setFont(titleLabel.getFont().deriveFont(TITLE_SIZE));
    JPanel titlePanel = new JPanel();
    titlePanel.add(titleLabel);/*from   w ww  .ja  v  a 2s  .  co m*/

    JPanel buttonPanel = new JPanel(new GridLayout(1, 0, 5, 0));
    for (int i = 0; i < BTN_COUNT; i++) {
        JButton btn = new JButton("Button " + (i + 1));
        buttonPanel.add(btn);
    }

    JTextArea textArea = new JTextArea(20, 30);

    JPanel mainPanel = new JPanel();
    mainPanel.setBorder(BorderFactory.createEmptyBorder(EB_GAP, EB_GAP, EB_GAP, EB_GAP));
    mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.PAGE_AXIS));
    mainPanel.add(titlePanel);
    mainPanel.add(Box.createVerticalStrut(VERT_GAP));
    mainPanel.add(buttonPanel);
    mainPanel.add(Box.createVerticalStrut(VERT_GAP));
    mainPanel.add(new JScrollPane(textArea));

    JFrame frame = new JFrame();
    frame.getContentPane().add(mainPanel, BorderLayout.CENTER);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.pack();
    frame.setVisible(true);

}

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From source file:MultiHighlight.java

public static void main(String args[]) {
    JFrame frame = new JFrame("MultiHighlight");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JTextArea area = new JTextArea(5, 20);
    area.setText("ww\nw.java2s.c\nom");
    frame.getContentPane().add(new JScrollPane(area), BorderLayout.CENTER);

    JButton b = new JButton("Highlight All Vowels");
    b.addActionListener(new MultiHighlight(area, "aeiouAEIOU"));
    frame.getContentPane().add(b, BorderLayout.SOUTH);
    frame.pack();/*from  w  w  w .  j  av a 2  s.co m*/
    frame.setVisible(true);
}

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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();// w w  w.ja  v  a  2  s.c o m
    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();/*  w  ww.  jav a2  s.  c  o m*/
    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;
        }/*w ww.  j a v a2s.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:PrintUIWindow.java

public static void main(String args[]) {
    UIManager.put("swing.boldMetal", Boolean.FALSE);
    JFrame f = new JFrame("Print UI Example");
    f.addWindowListener(new WindowAdapter() {
        public void windowClosing(WindowEvent e) {
            System.exit(0);//from   ww  w .  j a  v a 2 s  . c o  m
        }
    });
    JTextArea text = new JTextArea(50, 20);
    for (int i = 1; i <= 50; i++) {
        text.append("Line " + i + "\n");
    }
    JScrollPane pane = new JScrollPane(text);
    pane.setPreferredSize(new Dimension(250, 200));
    f.add("Center", pane);
    JButton printButton = new JButton("Print This Window");
    printButton.addActionListener(new PrintUIWindow(f));
    f.add("South", printButton);
    f.pack();
    f.setVisible(true);
}

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From source file:flow.visibility.FlowMain.java

public static void main(String[] args) throws Exception {

    /************************************************************** 
     * Creating the Main GUI /*  w  ww. j a  v a 2s  .c o  m*/
     **************************************************************/

    final JDesktopPane desktop = new JDesktopPane();

    final JMenuBar mb = new JMenuBar();
    JMenu menu;

    /** Add File Menu to Open File and Save Result */

    menu = new JMenu("File");
    JMenuItem Open = new JMenuItem("Open");
    JMenuItem Save = new JMenuItem("Save");
    menu.add(Open);
    menu.add(Save);

    menu.addSeparator();
    JMenuItem Exit = new JMenuItem("Exit");
    menu.add(Exit);
    Exit.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            System.exit(0);
        }
    });

    mb.add(menu);

    /** Add Control Menu to Start and Stop Capture */

    menu = new JMenu("Control");
    JMenuItem Start = new JMenuItem("Start Capture");
    JMenuItem Stop = new JMenuItem("Stop Capture");
    menu.add(Start);
    Start.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            FlowDumper.main(false);
        }
    });

    menu.add(Stop);
    Stop.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            FlowDumper.main(true);
        }
    });

    mb.add(menu);

    /** Add Configuration Menu for Tapping and Display */

    menu = new JMenu("Configuration");
    JMenuItem Tapping = new JMenuItem("Tapping Configuration");
    JMenuItem Display = new JMenuItem("Display Configuration");
    menu.add(Tapping);
    Tapping.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            FlowTapping.main(null);
        }
    });
    menu.add(Display);

    mb.add(menu);

    /** Add Detail Menu for NetGrok Visualization and JEthereal Inspection */

    menu = new JMenu("Flow Detail");
    JMenuItem FlowVisual = new JMenuItem("Flow Visualization");
    JMenuItem FlowInspect = new JMenuItem("Flow Inspections");
    menu.add(FlowVisual);
    FlowVisual.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            NetworkView.main(null);
        }
    });
    menu.add(FlowInspect);
    FlowInspect.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            Ethereal.main(null);
        }
    });
    mb.add(menu);

    /** Add Help Menu for Software Information */
    menu = new JMenu("Help");
    JMenuItem About = new JMenuItem("About");
    menu.add(About);
    About.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            JOptionPane.showMessageDialog(null, "OF@TEIN Flow Visibility Tools @ 2015 by GIST",
                    "About the Software", JOptionPane.PLAIN_MESSAGE);
        }
    });
    mb.add(menu);

    /** Creating the main frame */
    JFrame frame = new JFrame("OF@TEIN Flow Visibility Tools");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setLayout(new BorderLayout());
    frame.add(desktop);
    frame.setJMenuBar(mb);
    frame.setSize(1215, 720);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);

    /**Add Blank three (3) Internal Jframe*/

    /**Internal Frame from Flow Summary Chart*/
    JInternalFrame FlowStatistic = new JInternalFrame("Flow Statistic", true, true, true, true);
    FlowStatistic.setBounds(0, 0, 600, 330);
    ChartPanel chartPanel = new ChartPanel(createChart(null));
    chartPanel.setMouseZoomable(true, false);
    FlowStatistic.add(chartPanel);
    FlowStatistic.setVisible(true);
    desktop.add(FlowStatistic);

    /**Internal Frame from Flow Summary Text*/
    JInternalFrame FlowSummary = new JInternalFrame("Flow Summary", true, true, true, true);
    FlowSummary.setBounds(0, 331, 600, 329);
    JTextArea textArea = new JTextArea(50, 10);
    JScrollPane scrollPane = new JScrollPane(textArea);
    FlowSummary.add(scrollPane);
    FlowSummary.setVisible(true);
    desktop.add(FlowSummary);

    //JInternalFrame FlowInspection = new JInternalFrame("Flow Inspection", true, true, true, true);
    //FlowInspection.setBounds(601, 0, 600, 660);
    //JTextArea textArea2 = new JTextArea(50, 10);
    //JScrollPane scrollPane2 = new JScrollPane(textArea2);
    //FlowInspection.add(scrollPane2);
    //FlowInspection.setVisible(true);
    //desktop.add(FlowInspection);

    /**Internal Frame from Printing the Packet Sequence*/
    JInternalFrame FlowSequence = new JInternalFrame("Flow Sequence", true, true, true, true);
    FlowSequence.setBounds(601, 0, 600, 660);
    JTextArea textArea3 = new JTextArea(50, 10);
    JScrollPane scrollPane3 = new JScrollPane(textArea3);
    FlowSequence.add(scrollPane3);
    FlowSequence.setVisible(true);
    desktop.add(FlowSequence);

    /************************************************************** 
     * Update the Frame Regularly
     **************************************************************/

    /** Regularly update the Frame Content every 3 seconds */

    for (;;) {

        desktop.removeAll();
        desktop.add(FlowProcess.FlowStatistic());
        desktop.add(FlowProcess.FlowSummary());
        //desktop.add(FlowProcess.FlowInspection());
        desktop.add(FlowProcess.FlowSequence());
        desktop.revalidate();
        Thread.sleep(10000);

    }

}

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From source file:Main.java

public static void displayErrorMessage(JFrame frame, String errorMessage) {
    // create a JTextArea
    JTextArea textArea = new JTextArea(6, 25);
    textArea.setText(errorMessage);/*from w w  w. j a  v a2s  .  co  m*/
    textArea.setEditable(false);

    // wrap a scrollpane around it
    JScrollPane scrollPane = new JScrollPane(textArea);

    // display them in a message dialog
    // TODO i don't know if this will work if this is null
    JOptionPane.showMessageDialog(frame, scrollPane);
}

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From source file:Main.java

static void createFrameAtLocation(Point p) {
    JFrame frame = new JFrame();
    frame.setTitle("Test frame on two screens");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JPanel panel = new JPanel(new BorderLayout());
    JTextArea textareaA = new JTextArea(24, 80);
    textareaA.setBorder(BorderFactory.createLineBorder(Color.DARK_GRAY, 1));
    panel.add(textareaA, BorderLayout.CENTER);
    frame.setLocation(p);//  ww  w  .  j a v a2s  .  c  o m
    frame.add(panel);
    frame.pack();
    frame.setExtendedState(Frame.MAXIMIZED_BOTH);
    frame.setVisible(true);
}

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