Example usage for java.awt BorderLayout NORTH

List of usage examples for java.awt BorderLayout NORTH

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Introduction

In this page you can find the example usage for java.awt BorderLayout NORTH.

Prototype

String NORTH

To view the source code for java.awt BorderLayout NORTH.

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Document

The north layout constraint (top of container).

Usage

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 . java  2  s . com
        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);
}

From source file:Main.java

public static void main(String args[]) {
    JFrame f = new JFrame();
    JButton jb1 = new JButton("Hello");
    ButtonModel bm = jb1.getModel();
    JButton jb2 = new JButton("World");
    jb2.setModel(bm);/*from  w  w w . j  a va  2  s  .co m*/
    Container c = f.getContentPane();
    c.add(jb1, BorderLayout.NORTH);
    c.add(jb2, BorderLayout.SOUTH);
    jb1.addActionListener(new MessageActionListener("Selected One"));
    jb2.addActionListener(new MessageActionListener("Selected Two"));
    f.pack();
    f.show();
}

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  .java2 s. co  m*/
        }
    };
    textField.setInputVerifier(verifier);

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

From source file:Main.java

public static void main(String[] args) {
    JFrame frame = new JFrame();

    String[] list = { "Hello 1", "Hello 2", "Hello 3", "Hello 4" };
    DefaultComboBoxModel<String> model = new DefaultComboBoxModel<>(list);
    JComboBox<String> comboBox = new JComboBox<>(model);
    frame.add(comboBox, BorderLayout.NORTH);

    final JTextField textField = new JTextField(30);
    frame.add(textField, BorderLayout.SOUTH);
    frame.add(new JLabel("Type something, then press enter", JLabel.CENTER));

    textField.addActionListener(ae -> {
        String text = textField.getText();
        model.addElement(text);//  ww w. jav  a 2  s.  c o m
        comboBox.setSelectedItem(text);
        textField.setText("");

    });

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.pack();
    frame.setVisible(true);
}

From source file:Main.java

public static void main(final String args[]) {
    String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame("Sizing Samples");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JList jlist1 = new JList(labels);
    jlist1.setVisibleRowCount(4);/*  w ww  .  j a v  a2  s.  c om*/
    JScrollPane scrollPane1 = new JScrollPane(jlist1);
    frame.add(scrollPane1, BorderLayout.NORTH);

    jlist1.setSelectedIndices(new int[] { 1, 2 });

    frame.setSize(300, 350);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(final String args[]) {
    String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame("Sizing Samples");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JList jlist1 = new JList(labels);
    jlist1.setVisibleRowCount(4);//from  ww w . jav  a  2s .  co  m
    JScrollPane scrollPane1 = new JScrollPane(jlist1);
    frame.add(scrollPane1, BorderLayout.NORTH);

    jlist1.setSelectionForeground(Color.RED);

    frame.setSize(300, 350);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(final String args[]) {
    String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame("Sizing Samples");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JList jlist1 = new JList(labels);
    jlist1.setVisibleRowCount(4);/*from  ww  w .  j a  v a  2 s  .com*/
    JScrollPane scrollPane1 = new JScrollPane(jlist1);
    frame.add(scrollPane1, BorderLayout.NORTH);

    jlist1.setSelectedIndex(1);

    frame.setSize(300, 350);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(final String args[]) {
    String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame("Sizing Samples");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JList jlist1 = new JList(labels);
    jlist1.setVisibleRowCount(4);/*from  ww w .  ja  va2 s  .  co  m*/
    JScrollPane scrollPane1 = new JScrollPane(jlist1);
    frame.add(scrollPane1, BorderLayout.NORTH);

    jlist1.setSelectionBackground(Color.RED);

    frame.setSize(300, 350);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String args[]) {
    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Box rowOne = new Box(BoxLayout.Y_AXIS);
    rowOne.add(new JLabel("Username"));
    rowOne.add(new JTextField());
    Component rowTwo = Box.createVerticalStrut(2);

    f.add(rowOne, BorderLayout.NORTH);
    f.add(rowTwo, BorderLayout.SOUTH);
    f.setSize(300, 200);/*from www .  j a  va 2s. c  om*/
    f.setVisible(true);
}

From source file:AddingDocumentListenerJTextFieldSample.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);

    DocumentListener documentListener = new DocumentListener() {
        public void changedUpdate(DocumentEvent documentEvent) {
            printIt(documentEvent);/*from  w ww .  ja  va 2s  .  c om*/
        }

        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();
            System.out.println("Length: " + length);
        }
    };
    textField.getDocument().addDocumentListener(documentListener);

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