Example usage for javax.swing JFrame JFrame

Introduction

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

Prototype

public JFrame() throws HeadlessException

Source Link

Document

Constructs a new frame that is initially invisible.

Usage

From source file:Main.java

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

    String labels[] = { "A", "B", "C", "D", "E", "F", "G", "H", "I", "J" };
    JComboBox<String> comboBox = new JComboBox<>(labels);
    comboBox.setEditable(true);/*from w  ww. j  a v a  2  s  .  c  om*/

    comboBox.addActionListener(new ActionListener() {
        boolean found = false;

        @Override
        public void actionPerformed(ActionEvent actionEvent) {
            String s = (String) comboBox.getSelectedItem();
            for (int i = 0; i < comboBox.getItemCount(); i++) {
                if (comboBox.getItemAt(i).toString().equals(s)) {
                    found = true;
                    break;
                }
            }
            if (!found) {
                System.out.println("Added: " + s);
                comboBox.addItem(s);
            }
            found = false;
        }
    });

    frame.add(comboBox);

    frame.pack();
    frame.setVisible(true);
}

From source file:Main.java

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

    JButton button = new JButton("Bring me to top after 3 seconds");
    button.addActionListener(e -> triggerBringToFront(f, 3000));
    f.getContentPane().add(button);//from   w  w  w . j a v a 2  s  .co  m

    f.pack();
    f.setVisible(true);
}

From source file:Main.java

public static void main(String... args) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    Container pane = frame.getContentPane();
    pane.add(blackJTextPane());//  w  w w  .  ja v  a2s.  co  m
    frame.setSize(800, 600);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String[] args) {
    JFrame aWindow = new JFrame();
    aWindow.setBounds(200, 200, 200, 200);
    aWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    Container content = aWindow.getContentPane();
    content.setLayout(new FlowLayout(FlowLayout.LEFT));
    content.add(new JButton("www.java2s.com"));
    content.add(new JLabel("www.java2s.com"));
    content.add(new JTextField("www.java2s.com"));
    aWindow.setVisible(true);/*from   w w  w  .ja va2 s  .  c om*/
}

From source file:Main.java

public static void main(String[] args) {
    AbstractButton jb = new JToggleButton("Press Me");
    jb.setMnemonic('P');

    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.getContentPane().add(jb);//from  ww w.j  a v a2s.  c  o m
    f.pack();
    f.setVisible(true);
}

From source file:Main.java

public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.setLayout(new FlowLayout());
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    String[] selections = { "green", "red", "orange", "dark blue" };
    JList list = new JList(selections) {
        // This method is called as the cursor moves within the list.
        public String getToolTipText(MouseEvent evt) {
            // Get item index
            int index = locationToIndex(evt.getPoint());

            // Get item
            Object item = getModel().getElementAt(index);

            // Return the tool tip text
            return "tool tip for " + item;
        }//from   www  .j  ava2 s .c  om
    };
    list.setSelectedIndex(1);
    System.out.println(list.getSelectedValue());
    frame.add(new JScrollPane(list));
    frame.pack();

    frame.setVisible(true);
}

From source file:Main.java

public static void main(String[] args) {
    AbstractButton jb = new JToggleButton("Press Me");
    jb.setSelected(true);/*from ww  w . j a  v  a  2 s.  c o m*/

    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.getContentPane().add(jb);
    f.pack();
    f.setVisible(true);
}

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  www. 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(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) {
    AbstractButton jb = new JToggleButton("Press Me");
    jb.setEnabled(false);/*from  w  w  w  .j a  v  a  2 s  .c o  m*/

    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.getContentPane().add(jb);
    f.pack();
    f.setVisible(true);
}

From source file:Main.java

public static void main(String args[]) {
    JFrame frame = new JFrame();
    frame.setSize(450, 250);/*  w w  w. j  av  a2  s  .c  o  m*/

    JTable table = new JTable(5, 5);

    TableColumn testColumn = table.getColumnModel().getColumn(0);

    JComboBox<String> comboBox = new JComboBox<>();
    comboBox.addItem("This");
    comboBox.addItem("is");
    comboBox.addItem("a");
    comboBox.addItem("Sample program");
    testColumn.setCellEditor(new DefaultCellEditor(comboBox));

    frame.add(table);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);
}