Example usage for javax.swing JTextField JTextField

Introduction

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

Prototype

public JTextField(int columns)

Source Link

Document

Constructs a new empty TextField with the specified number of columns.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    JTextField component = new JTextField(10);
    JTextField component1 = new JTextField(10);
    component.addFocusListener(new MyFocusListener());
    component1.addFocusListener(new MyFocusListener());
    JFrame f = new JFrame();
    f.setLayout(new FlowLayout());
    f.add(component1);/*  ww w .java2 s  . c om*/
    f.add(component);
    f.pack();
    f.setVisible(true);

}

From source file:Main.java

public static void main(String[] a) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JTextField textField = new JTextField("A TextField");
    textField.addFocusListener(new FocusListener() {
        public void focusGained(FocusEvent e) {
            displayMessage("Focus gained", e);
        }//from w  w  w. ja  v  a 2 s .c o  m

        public void focusLost(FocusEvent e) {
            displayMessage("Focus lost", e);
        }

        void displayMessage(String prefix, FocusEvent e) {
            System.out.println(e.getID() == FocusEvent.FOCUS_LOST);
        }
    });
    frame.add(textField, "North");
    frame.add(new JTextField(), "South");
    frame.setSize(300, 200);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String[] a) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JTextField textField = new JTextField("A TextField");
    textField.addFocusListener(new FocusListener() {
        public void focusGained(FocusEvent e) {
            displayMessage("Focus gained", e);
        }/*from ww w.j a  v a  2s  .  com*/

        public void focusLost(FocusEvent e) {
            displayMessage("Focus lost", e);
        }

        void displayMessage(String prefix, FocusEvent e) {
            System.out.println(e.getID() == FocusEvent.FOCUS_LAST);
        }
    });
    frame.add(textField, "North");
    frame.add(new JTextField(), "South");
    frame.setSize(300, 200);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String[] a) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JTextField textField = new JTextField("A TextField");
    textField.addFocusListener(new FocusListener() {
        public void focusGained(FocusEvent e) {
            displayMessage("Focus gained", e);
        }/*from w ww  .  jav a 2s  .  co  m*/

        public void focusLost(FocusEvent e) {
            displayMessage("Focus lost", e);
        }

        void displayMessage(String prefix, FocusEvent e) {
            System.out.println(e.getID() == FocusEvent.FOCUS_FIRST);
        }
    });
    frame.add(textField, "North");
    frame.add(new JTextField(), "South");
    frame.setSize(300, 200);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String[] a) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JTextField textField = new JTextField("A TextField");
    textField.addFocusListener(new FocusListener() {
        public void focusGained(FocusEvent e) {
            displayMessage("Focus gained", e);
        }//w  ww  .j av a 2s.c om

        public void focusLost(FocusEvent e) {
            displayMessage("Focus lost", e);
        }

        void displayMessage(String prefix, FocusEvent e) {
            System.out.println(e.paramString());
        }
    });
    frame.add(textField, "North");
    frame.add(new JTextField(), "South");
    frame.setSize(300, 200);
    frame.setVisible(true);
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    JTextField field = new JTextField(30);

    ((AbstractDocument) (field.getDocument())).setDocumentFilter(new DocumentFilter() {
        public void insertString(FilterBypass fb, int offset, String string, AttributeSet attr)
                throws BadLocationException {
            System.out.println("insert");
            fb.insertString(offset, string.toUpperCase(), attr);
        }/*  w  w w. ja  v a2s .co m*/

        public void replace(FilterBypass fb, int offset, int length, String string, AttributeSet attr)
                throws BadLocationException {
            System.out.println("replace");
            fb.replace(offset, length, string.toUpperCase(), attr);
        }
    });

    JFrame frame = new JFrame("User Information");
    frame.getContentPane().add(field);
    frame.pack();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String[] a) {
    final JTextField textField = new JTextField(5);

    textField.addFocusListener(new FocusListener() {
        public void focusGained(FocusEvent e) {
        }/*from w  w  w  .  j av a2 s .  co m*/

        public void focusLost(FocusEvent e) {
            if (!e.isTemporary()) {
                String content = textField.getText();
                if (!content.equals("a")) {
                    System.out.println("illegal value! " + content);
                    SwingUtilities.invokeLater(new FocusGrabber(textField));
                }
            }
        }
    });
    JFrame frame = new JFrame();
    frame.add(textField, BorderLayout.CENTER);
    frame.setSize(300, 300);
    frame.setVisible(true);

}

From source file:Main.java

public static void main(String[] args) {
    JTextField account = new JTextField(10);
    JPanel accountPanel = new JPanel(new GridLayout());
    accountPanel.add(account);/*from  ww w  .j  a  va 2 s. c om*/
    accountPanel.setBorder(new TitledBorder("Account"));

    String[] firstDigitList = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9" };

    JLabel firstDigitListLabel = new JLabel("Leading Digit Change");
    JPanel firstDigitListPanel = new JPanel(new BorderLayout(4, 2));
    firstDigitListPanel.add(firstDigitListLabel, BorderLayout.WEST);
    JComboBox firstDigitCombo = new JComboBox(firstDigitList);
    firstDigitListPanel.add(firstDigitCombo);
    firstDigitCombo.setSelectedIndex(0);
    firstDigitListPanel.setBorder(new TitledBorder("LDC"));

    JPanel panel = new JPanel();
    panel.add(accountPanel);
    panel.add(firstDigitListPanel);

    int result = JOptionPane.showConfirmDialog(null, panel, "Please Enter Values",
            JOptionPane.OK_CANCEL_OPTION);
}

From source file:UsingFocusListener.java

public static void main(String[] a) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JTextField textField = new JTextField("A TextField");
    textField.addFocusListener(new FocusListener() {
        public void focusGained(FocusEvent e) {
            displayMessage("Focus gained", e);
        }//from   w ww  . ja v  a 2  s. c om

        public void focusLost(FocusEvent e) {
            displayMessage("Focus lost", e);
        }

        void displayMessage(String prefix, FocusEvent e) {
            System.out.println(prefix + (e.isTemporary() ? " (temporary):" : ":")
                    + e.getComponent().getClass().getName() + "; Opposite component: "
                    + (e.getOppositeComponent() != null ? e.getOppositeComponent().getClass().getName()
                            : "null"));
        }

    });

    frame.add(textField, "North");
    frame.add(new JTextField(), "South");
    frame.setSize(300, 200);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String[] args) {
    JPanel mainPanel = new JPanel();
    JTextField field = new JTextField(20);
    JTextField field1 = new JTextField(20);

    field.getDocument().addDocumentListener(new DocumentListener() {
        @Override//from  ww  w .j  a va  2  s .c om
        public void changedUpdate(DocumentEvent e) {
            updateLabel(e);
        }

        @Override
        public void insertUpdate(DocumentEvent e) {
            updateLabel(e);
        }

        @Override
        public void removeUpdate(DocumentEvent e) {
            updateLabel(e);
        }

        private void updateLabel(DocumentEvent e) {
            field1.setText(field.getText());
        }
    });

    mainPanel.setLayout(new GridLayout(1, 0, 10, 0));
    mainPanel.add(field);
    mainPanel.add(field1);

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