Example usage for javax.swing InputVerifier InputVerifier

List of usage examples for javax.swing InputVerifier InputVerifier

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Introduction

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

Prototype

InputVerifier

Source Link

Usage

From source file:Main.java

public static void main(String args[]) {

    JTextField textField1 = new JTextField();
    JTextField textField2 = new JTextField();
    InputVerifier verifier = new InputVerifier() {
        public boolean verify(JComponent comp) {
            boolean returnValue;
            JTextField textField = (JTextField) comp;
            try {
                Integer.parseInt(textField.getText());
                returnValue = true;/*from   w  w  w  .ja  v  a 2 s .  c  o m*/
            } catch (NumberFormatException e) {
                returnValue = false;
            }
            return returnValue;
        }
    };
    textField1.setInputVerifier(verifier);

    JFrame frame = new JFrame("Verifier Sample");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    frame.add(textField1, BorderLayout.NORTH);
    frame.add(textField2, BorderLayout.CENTER);
    frame.setSize(300, 100);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Verifier Sample");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JTextField textField1 = new JTextField();
    JTextField textField2 = new JTextField();
    InputVerifier verifier = new InputVerifier() {
        public boolean verify(JComponent comp) {
            boolean returnValue;
            JTextField textField = (JTextField) comp;
            try {
                Integer.parseInt(textField.getText());
                returnValue = true;/*from   ww w .  jav  a  2s .  com*/
            } catch (NumberFormatException e) {
                returnValue = false;
            }
            return returnValue;
        }
    };
    textField1.setInputVerifier(verifier);
    frame.add(textField1, BorderLayout.NORTH);
    frame.add(textField2, BorderLayout.CENTER);
    frame.setSize(300, 100);
    frame.setVisible(true);
}

From source file:MainClass.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Verifier Sample");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JTextField textField1 = new JTextField();
    JTextField textField2 = new JTextField();
    JTextField textField3 = new JTextField();

    InputVerifier verifier = new InputVerifier() {
        public boolean verify(JComponent comp) {
            boolean returnValue;
            JTextField textField = (JTextField) comp;
            try {
                Integer.parseInt(textField.getText());
                returnValue = true;//from w w w  .  j  a va 2s  .c  om
            } catch (NumberFormatException e) {
                returnValue = false;
            }
            return returnValue;
        }
    };

    textField1.setInputVerifier(verifier);
    textField3.setInputVerifier(verifier);

    frame.add(textField1, BorderLayout.NORTH);
    frame.add(textField2, BorderLayout.CENTER);
    frame.add(textField3, BorderLayout.SOUTH);
    frame.setSize(300, 100);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Verifier Sample");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JTextField textField1 = new JTextField();
    JTextField textField2 = new JTextField();
    JTextField textField3 = new JTextField();

    InputVerifier verifier = new InputVerifier() {
        public boolean verify(JComponent comp) {
            boolean returnValue;
            JTextField textField = (JTextField) comp;
            try {
                Integer.parseInt(textField.getText());
                returnValue = true;/*from  ww  w. j  av a 2s  . c  o m*/
            } catch (NumberFormatException e) {
                returnValue = false;
            }
            return returnValue;
        }
    };

    textField1.setInputVerifier(verifier);
    textField3.setInputVerifier(verifier);

    Container contentPane = frame.getContentPane();
    contentPane.add(textField1, BorderLayout.NORTH);
    contentPane.add(textField2, BorderLayout.CENTER);
    contentPane.add(textField3, BorderLayout.SOUTH);
    frame.setSize(300, 100);
    frame.setVisible(true);
}

From source file:AddingActionCommandActionListenerSample.java

public static void main(String args[]) {
    final JFrame frame = new JFrame("Default Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JTextField textField = new JTextField();
    frame.add(textField, BorderLayout.NORTH);
    frame.add(new JTextField(), BorderLayout.SOUTH);

    InputVerifier verifier = new InputVerifier() {
        public boolean verify(JComponent input) {
            final JTextComponent source = (JTextComponent) input;
            String text = source.getText();
            if ((text.length() != 0) && !(text.equals("Exit"))) {
                JOptionPane.showMessageDialog(frame, "Can't leave.", "Error Dialog", JOptionPane.ERROR_MESSAGE);
                return false;
            } else {
                return true;
            }//from   w ww . ja  v  a2 s.  c o m
        }
    };
    textField.setInputVerifier(verifier);

    frame.setSize(250, 150);
    frame.setVisible(true);
}

From source file:MainClass.java

public static void main(String argv[]) {

    java.net.URL u = null;// ww w  .j a va 2 s .  c om
    try {
        u = new java.net.URL("http://www.java2s.com/");
    } catch (java.net.MalformedURLException ignored) {
    }

    JFormattedTextField ftf1 = new JFormattedTextField(u);
    JFormattedTextField ftf2 = new JFormattedTextField(u);

    ftf2.setInputVerifier(new InputVerifier() {
        public boolean verify(JComponent input) {
            if (!(input instanceof JFormattedTextField))
                return true;
            return ((JFormattedTextField) input).isEditValid();
        }
    });

    JPanel p = new JPanel(new GridLayout(0, 2, 3, 8));
    p.add(new JLabel("plain JFormattedTextField:"));
    p.add(ftf1);
    p.add(new JLabel("FTF with InputVerifier:"));
    p.add(ftf2);
    p.add(new JLabel("plain JTextField:"));
    p.add(new JTextField(u.toString()));

    JFrame f = new JFrame("MainClass");
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.getContentPane().add(new JLabel("Try to delete the colon in each field."), "North");
    f.getContentPane().add(p, "Center");
    f.pack();
    f.setVisible(true);
}

From source file:MainClass.java

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

    JTextField nameTextField = new JTextField();
    frame.add(nameTextField, BorderLayout.NORTH);
    frame.add(new JTextField(), BorderLayout.SOUTH);

    InputVerifier verifier = new InputVerifier() {
        public boolean verify(JComponent input) {
            final JTextComponent source = (JTextComponent) input;
            String text = source.getText();
            if ((text.length() != 0) && !(text.equals("Exit"))) {
                JOptionPane.showMessageDialog(source, "Can't leave.", "Error Dialog",
                        JOptionPane.ERROR_MESSAGE);
                return false;
            } else {
                return true;
            }// ww  w.  ja va  2s .  c om
        }
    };
    nameTextField.setInputVerifier(verifier);

    frame.setSize(250, 100);
    frame.setVisible(true);
}

From source file:FtfInputVerifier.java

public static void main(String argv[]) {

    java.net.URL u = null;/* w w w  .  j  a v a2 s . c o m*/
    try {
        u = new java.net.URL("http://www.ora.com/");
    } catch (java.net.MalformedURLException ignored) {
    }

    // create two identical JFormattedTextFields
    JFormattedTextField ftf1 = new JFormattedTextField(u);
    JFormattedTextField ftf2 = new JFormattedTextField(u);

    // and set an InputVerifier on one of them
    ftf2.setInputVerifier(new InputVerifier() {
        public boolean verify(JComponent input) {
            if (!(input instanceof JFormattedTextField))
                return true; // give up focus
            return ((JFormattedTextField) input).isEditValid();
        }
    });

    JPanel p = new JPanel(new java.awt.GridLayout(0, 2, 3, 8));
    p.add(new JLabel("plain JFormattedTextField:", JLabel.RIGHT));
    p.add(ftf1);
    p.add(new JLabel("FTF with InputVerifier:", JLabel.RIGHT));
    p.add(ftf2);
    p.add(new JLabel("plain JTextField:", JLabel.RIGHT));
    p.add(new JTextField(u.toString()));
    p.setBorder(BorderFactory.createEmptyBorder(8, 8, 8, 8));

    JFrame f = new JFrame("FtfInputVerifier");
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.getContentPane().add(new JLabel("Try to delete the colon in each field.", JLabel.CENTER),
            java.awt.BorderLayout.NORTH);
    f.getContentPane().add(p, java.awt.BorderLayout.CENTER);
    f.pack();
    f.setVisible(true);
}

From source file:JTextFieldSample.java

public static void main(String args[]) {
    String title = (args.length == 0 ? "TextField Listener Example" : args[0]);
    JFrame frame = new JFrame(title);
    Container content = frame.getContentPane();

    JPanel namePanel = new JPanel(new BorderLayout());
    JLabel nameLabel = new JLabel("Name: ");
    nameLabel.setDisplayedMnemonic(KeyEvent.VK_N);
    JTextField nameTextField = new JTextField();
    nameLabel.setLabelFor(nameTextField);
    namePanel.add(nameLabel, BorderLayout.WEST);
    namePanel.add(nameTextField, BorderLayout.CENTER);
    content.add(namePanel, BorderLayout.NORTH);

    JPanel cityPanel = new JPanel(new BorderLayout());
    JLabel cityLabel = new JLabel("City: ");
    cityLabel.setDisplayedMnemonic(KeyEvent.VK_C);
    JTextField cityTextField = new JTextField();
    cityLabel.setLabelFor(cityTextField);
    cityPanel.add(cityLabel, BorderLayout.WEST);
    cityPanel.add(cityTextField, BorderLayout.CENTER);
    content.add(cityPanel, BorderLayout.SOUTH);

    ActionListener actionListener = new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            System.out.println("Command: " + actionEvent.getActionCommand());
        }/* w  w  w . j ava2s. c om*/
    };
    nameTextField.setActionCommand("Yo");
    nameTextField.addActionListener(actionListener);
    cityTextField.addActionListener(actionListener);

    KeyListener keyListener = new KeyListener() {
        public void keyPressed(KeyEvent keyEvent) {
            printIt("Pressed", keyEvent);
        }

        public void keyReleased(KeyEvent keyEvent) {
            printIt("Released", keyEvent);
        }

        public void keyTyped(KeyEvent keyEvent) {
            printIt("Typed", keyEvent);
        }

        private void printIt(String title, KeyEvent keyEvent) {
            int keyCode = keyEvent.getKeyCode();
            String keyText = KeyEvent.getKeyText(keyCode);
            System.out.println(title + " : " + keyText + " / " + keyEvent.getKeyChar());
        }
    };
    nameTextField.addKeyListener(keyListener);
    cityTextField.addKeyListener(keyListener);

    InputVerifier verifier = new InputVerifier() {
        public boolean verify(JComponent input) {
            final JTextComponent source = (JTextComponent) input;
            String text = source.getText();
            if ((text.length() != 0) && !(text.equals("Exit"))) {
                Runnable runnable = new Runnable() {
                    public void run() {
                        JOptionPane.showMessageDialog(source, "Can't leave.", "Error Dialog",
                                JOptionPane.ERROR_MESSAGE);
                    }
                };
                SwingUtilities.invokeLater(runnable);
                return false;
            } else {
                return true;
            }
        }
    };
    nameTextField.setInputVerifier(verifier);
    cityTextField.setInputVerifier(verifier);

    DocumentListener documentListener = new DocumentListener() {
        public void changedUpdate(DocumentEvent documentEvent) {
            printIt(documentEvent);
        }

        public void insertUpdate(DocumentEvent documentEvent) {
            printIt(documentEvent);
        }

        public void removeUpdate(DocumentEvent documentEvent) {
            printIt(documentEvent);
        }

        private void printIt(DocumentEvent documentEvent) {
            DocumentEvent.EventType type = documentEvent.getType();
            String typeString = null;
            if (type.equals(DocumentEvent.EventType.CHANGE)) {
                typeString = "Change";
            } else if (type.equals(DocumentEvent.EventType.INSERT)) {
                typeString = "Insert";
            } else if (type.equals(DocumentEvent.EventType.REMOVE)) {
                typeString = "Remove";
            }
            System.out.print("Type  :   " + typeString + " / ");
            Document source = documentEvent.getDocument();
            int length = source.getLength();
            try {
                System.out.println("Contents: " + source.getText(0, length));
            } catch (BadLocationException badLocationException) {
                System.out.println("Contents: Unknown");
            }
        }
    };
    nameTextField.getDocument().addDocumentListener(documentListener);
    cityTextField.getDocument().addDocumentListener(documentListener);

    frame.setSize(250, 150);
    frame.setVisible(true);
}

From source file:Main.java

private InputVerifier getInputVerifier() {
    InputVerifier verifier = new InputVerifier() {
        @Override/*from  ww w . j av a  2s. c o m*/
        public boolean verify(JComponent input) {
            JFormattedTextField field = (JFormattedTextField) input;
            String text = field.getText();
            return isValidDate(text);
        }

        @Override
        public boolean shouldYieldFocus(JComponent input) {
            boolean valid = verify(input);
            if (!valid) {
                JOptionPane.showMessageDialog(null, "Please enter a valid date in format dd/mm/yyyy");
            }
            return valid;
        }
    };
    return verifier;
}