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()

Source Link

Document

Constructs a new TextArea.

Usage

From source file:Main.java

public Main() {
    setSize(300, 300);/*  w  ww.ja  v a2 s.c o m*/
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    final JTextArea textArea = new JTextArea();
    textArea.setText("Click Me!");

    textArea.addMouseListener(new MouseAdapter() {
        public void mouseClicked(MouseEvent e) {
            if (e.getButton() == MouseEvent.NOBUTTON) {
                textArea.setText("No button clicked...");
            } else if (e.getButton() == MouseEvent.BUTTON1) {
                textArea.setText("Button 1 clicked...");
            } else if (e.getButton() == MouseEvent.BUTTON2) {
                textArea.setText("Button 2 clicked...");
            } else if (e.getButton() == MouseEvent.BUTTON3) {
                textArea.setText("Button 3 clicked...");
            }

            System.out.println("Number of click: " + e.getClickCount());
            System.out.println("Click position (X, Y):  " + e.getX() + ", " + e.getY());
        }
    });

    getContentPane().add(textArea);
}

From source file:Main.java

public Main() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setSize(200, 200);//from  w w  w.j a  v a 2 s  .  co  m
    JTextArea textArea = new JTextArea();
    textArea.addMouseWheelListener(new MouseWheelListener() {
        public void mouseWheelMoved(MouseWheelEvent e) {
            if (e.getWheelRotation() < 0) {
                System.out.println("Up... " + e.getWheelRotation());
            } else {
                System.out.println("Down... " + e.getWheelRotation());
            }
            System.out.println("ScrollAmount: " + e.getScrollAmount());

            if (e.getScrollType() == MouseWheelEvent.WHEEL_UNIT_SCROLL) {
                System.out.println("MouseWheelEvent.WHEEL_UNIT_SCROLL");
            }

            if (e.getScrollType() == MouseWheelEvent.WHEEL_BLOCK_SCROLL) {
                System.out.println("MouseWheelEvent.WHEEL_BLOCK_SCROLL");
            }
        }
    });

    getContentPane().add(textArea);
}

From source file:DropTest14.java

public DropTest14() {
    super("Drop Test 1.4");
    setSize(300, 300);/*w  w  w  .j a v  a 2 s  .c  o m*/
    setDefaultCloseOperation(EXIT_ON_CLOSE);

    getContentPane().add(new JLabel("Drop the choice from your JList here:"), BorderLayout.NORTH);
    ta = new JTextArea();
    ta.setBackground(Color.white);
    getContentPane().add(ta, BorderLayout.CENTER);

    setVisible(true);
}

From source file:Main.java

public Main() {
    super();//from   www. j a va 2s. com
    this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    Container contentPane = this.getContentPane();
    textArea = new JTextArea();
    JScrollPane pane = new JScrollPane(textArea, ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS,
            ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
    contentPane.add(pane, BorderLayout.CENTER);
}

From source file:Main.java

Main() {
    setSize(500, 300);//from  w w  w  .  j a v  a 2  s .  co m
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setLayout(new BorderLayout());
    JScrollPane pane = new JScrollPane();
    txtMain = new JTextArea();
    pane.setViewportView(txtMain);
    this.add(pane, BorderLayout.CENTER);

    JButton btnAddText = new JButton("Add Text");
    btnAddText.addActionListener(e -> {
        txtMain.setText(txtMain.getText()
                + "\nLorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi sagittis id nibh vel rhoncus. ");
        String text = txtMain.getText();
        txtMain.setCaretPosition(text != null ? text.length() : 0);
    });
    add(btnAddText, BorderLayout.SOUTH);
    setVisible(true);
}

From source file:Main.java

public Main(int axis) {
    super(BoxLayout.Y_AXIS);
    container = new Box(axis);
    container.setAlignmentX(Box.LEFT_ALIGNMENT);
    add(container);/*from w w w . j a v  a2s.co m*/

    JTextArea text = new JTextArea();
    container.add(new JScrollPane(text));

    JButton split = new JButton("Split");
    split.setAlignmentX(Box.LEFT_ALIGNMENT);
    split.addActionListener(e -> {
        JTextArea t = new JTextArea();
        container.add(new JScrollPane(t));
        revalidate();
    });
    add(split);

    JButton axisChanger = new JButton("Change Axis");
    axisChanger.setAlignmentX(Box.LEFT_ALIGNMENT);
    axisChanger.addActionListener(e -> {
        Box newContainer;
        if (((BoxLayout) container.getLayout()).getAxis() == BoxLayout.X_AXIS) {
            newContainer = Box.createVerticalBox();
        } else {
            newContainer = Box.createHorizontalBox();
        }
        for (Component c : container.getComponents()) {
            container.remove(c);
            newContainer.add(c);
        }
        remove(container);
        add(newContainer, 0);
        container = newContainer;
        container.setAlignmentX(Box.LEFT_ALIGNMENT);
        revalidate();
    });
    add(axisChanger);

}

From source file:Main.java

private void addComponentsToPane() {
    display = new JTextArea();
    display.setEditable(false);//from  w w  w .  ja  v  a2 s  . c  o  m
    JScrollPane scrollPane = new JScrollPane(display);
    scrollPane.setPreferredSize(new Dimension(500, 450));
    getContentPane().add(scrollPane, BorderLayout.CENTER);
    addWindowFocusListener(this);
}

From source file:DropTest.java

public DropTest() {
    super("Drop Test");
    setSize(300, 300);/*from w ww .j  ava  2  s.co m*/

    getContentPane().add(new JLabel("Drop a list from your file chooser here:"), BorderLayout.NORTH);
    ta = new JTextArea();
    ta.setBackground(Color.white);
    getContentPane().add(ta, BorderLayout.CENTER);

    // Set up our text area to recieve drops...
    // This class will handle drop events
    dt = new DropTarget(ta, this);
    setVisible(true);
}

From source file:NewDropTest.java

public NewDropTest() {
    super("Drop Test");
    setSize(300, 300);//from   w w  w  .  j a v a 2  s. c  o m

    getContentPane().add(new JLabel("Drop a list from your file chooser here:"), BorderLayout.NORTH);
    ta = new JTextArea();
    ta.setBackground(Color.white);
    getContentPane().add(ta, BorderLayout.CENTER);

    // Set up our text area to recieve drops...
    // This class will handle drop events
    // dt = new DropTarget(ta, this);
    setVisible(true);
}

From source file:Main.java

private void addComponentsToPane() {

    JButton button = new JButton("Clear");
    button.addActionListener(this);

    typingArea = new JTextField(20);
    typingArea.addKeyListener(this);

    displayArea = new JTextArea();
    displayArea.setEditable(false);/*from   ww  w .  jav a2 s .  c om*/
    JScrollPane scrollPane = new JScrollPane(displayArea);
    scrollPane.setPreferredSize(new Dimension(375, 125));

    getContentPane().add(typingArea, BorderLayout.PAGE_START);
    getContentPane().add(scrollPane, BorderLayout.CENTER);
    getContentPane().add(button, BorderLayout.PAGE_END);
}