Example usage for java.awt.event ItemEvent SELECTED

Introduction

In this page you can find the example usage for java.awt.event ItemEvent SELECTED.

Prototype

int SELECTED

To view the source code for java.awt.event ItemEvent SELECTED.

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Document

This state-change value indicates that an item was selected.

Usage

From source file:Main.java

public static void main(String[] args) {
    JComboBox<String> box = new JComboBox<>();
    box.addItem("One");
    box.addItem("Two");
    box.addItem("Three");

    box.addItemListener(new ItemListener() {
        public void itemStateChanged(ItemEvent e) {
            if (e.getStateChange() == ItemEvent.SELECTED) {
                System.out.println(e.getItem());
            }//from  w  w w .j a v  a2 s.c  om
        }
    });
    JFrame frame = new JFrame();
    frame.getContentPane().add(box);
    frame.pack();
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Selecting Toggle");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JToggleButton toggleButton = new JToggleButton("Toggle Button");

    ItemListener itemListener = new ItemListener() {
        public void itemStateChanged(ItemEvent itemEvent) {
            int state = itemEvent.getStateChange();
            if (state == ItemEvent.SELECTED) {
                System.out.println("Selected");
            } else {
                System.out.println("Deselected");
            }//from w  ww. ja  va2 s .c o  m
        }
    };
    // Attach Listeners
    toggleButton.addItemListener(itemListener);
    frame.add(toggleButton, BorderLayout.NORTH);
    frame.setSize(300, 125);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) {
    JFrame result = new JFrame();
    JComboBox<String> combobox = new JComboBox<>(new String[] { "foo", "bar", "aaa", "Hello World" });
    result.add(combobox, BorderLayout.CENTER);

    JCheckBox toggleVisibility = new JCheckBox("Toggle visibility");
    toggleVisibility.setSelected(combobox.isVisible());
    toggleVisibility.addItemListener(e -> {
        combobox.setVisible(e.getStateChange() == ItemEvent.SELECTED);
    });//w  w w .  j av a  2  s  . c o  m
    result.add(toggleVisibility, BorderLayout.SOUTH);

    result.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    result.pack();
    result.setVisible(true);

}

---

From source file:Main.java

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

    JComboBox comboBox = new JComboBox(labels);
    frame.add(comboBox, BorderLayout.SOUTH);

    ItemListener itemListener = new ItemListener() {
        public void itemStateChanged(ItemEvent itemEvent) {
            int state = itemEvent.getStateChange();
            String stateString = ((state == ItemEvent.SELECTED) ? "Selected" : "Deselected");
            System.out.println("Item: " + itemEvent.getItem());
            System.out.println(", State: " + stateString);
            ItemSelectable is = itemEvent.getItemSelectable();
            System.out.println(", Selected: " + selectedString(is));
        }/*from   w  w  w .  j  a va 2 s  .c  o m*/
    };
    comboBox.addItemListener(itemListener);
    frame.setSize(400, 200);
    frame.setVisible(true);

}

---

From source file:Main.java

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

    JCheckBox aCheckBox4 = new JCheckBox("Stuffed Crust");

    ItemListener itemListener = new ItemListener() {
        public void itemStateChanged(ItemEvent itemEvent) {
            AbstractButton abstractButton = (AbstractButton) itemEvent.getSource();
            Color foreground = abstractButton.getForeground();
            Color background = abstractButton.getBackground();
            int state = itemEvent.getStateChange();
            if (state == ItemEvent.SELECTED) {
                abstractButton.setForeground(background);
                abstractButton.setBackground(foreground);
            }//from  ww  w .j a  v a  2  s  .  c om
        }
    };
    aCheckBox4.addItemListener(itemListener);
    frame.add(aCheckBox4);
    frame.setSize(300, 200);
    frame.setVisible(true);
}

---

From source file:ItemTest.java

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

    ItemListener listener = new ItemListener() {
        public void itemStateChanged(ItemEvent e) {
            System.out.println("Source: " + name(e.getSource()));
            System.out.println("Item: " + name(e.getItem()));
            int state = e.getStateChange();
            System.out.println("State: " + ((state == ItemEvent.SELECTED) ? "Selected" : "Deselected"));
        }//from w w w. j a  va 2s  . c  o  m

        private String name(Object o) {
            if (o instanceof JComponent) {
                JComponent comp = (JComponent) o;
                return comp.getName();
            } else {
                return o.toString();
            }
        }
    };

    JPanel panel = new JPanel(new GridLayout(0, 1));
    ButtonGroup group = new ButtonGroup();
    JRadioButton option = new JRadioButton("French Fries", true);
    option.setName(option.getText());
    option.addItemListener(listener);
    group.add(option);
    panel.add(option);
    option = new JRadioButton("Onion Rings", false);
    option.setName(option.getText());
    option.addItemListener(listener);
    group.add(option);
    panel.add(option);
    option = new JRadioButton("Ice Cream", false);
    option.setName(option.getText());
    option.addItemListener(listener);
    group.add(option);
    panel.add(option);
    contentPane.add(panel, BorderLayout.NORTH);

    String flavors[] = { "Item 1", "Item 2", "Item 3" };
    JComboBox jc = new JComboBox(flavors);
    jc.setName("Combo");
    jc.addItemListener(listener);
    jc.setMaximumRowCount(4);
    contentPane.add(jc, BorderLayout.SOUTH);

    frame.pack();
    frame.show();
}

---

From source file:JRadioButtonItemListener.java

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

    JPanel panel = new JPanel(new GridLayout(0, 1));

    ButtonGroup group = new ButtonGroup();
    JRadioButton aRadioButton = new JRadioButton("A");
    JRadioButton bRadioButton = new JRadioButton("B");

    ItemListener itemListener = new ItemListener() {
        String lastSelected;//from   w  w  w  .j  a  v a2  s. c om

        public void itemStateChanged(ItemEvent itemEvent) {
            AbstractButton aButton = (AbstractButton) itemEvent.getSource();
            int state = itemEvent.getStateChange();
            String label = aButton.getText();
            String msgStart;
            if (state == ItemEvent.SELECTED) {
                if (label.equals(lastSelected)) {
                    msgStart = "Reselected -> ";
                } else {
                    msgStart = "Selected -> ";
                }
                lastSelected = label;
            } else {
                msgStart = "Deselected -> ";
            }
            System.out.println(msgStart + label);
        }
    };

    panel.add(aRadioButton);
    group.add(aRadioButton);
    panel.add(bRadioButton);
    group.add(bRadioButton);

    aRadioButton.addItemListener(itemListener);
    bRadioButton.addItemListener(itemListener);

    frame.add(panel);
    frame.setSize(300, 200);
    frame.setVisible(true);
}

---

From source file:Main.java

public static void main(String[] args) {
    JRadioButton dem = new JRadioButton("Bill", false);
    dem.setActionCommand("Bill");
    JRadioButton rep = new JRadioButton("Bob", false);
    rep.setActionCommand("Bob");
    JRadioButton ind = new JRadioButton("Ross", false);
    ind.setActionCommand("Ross");

    final ButtonGroup group = new ButtonGroup();
    group.add(dem);/*w w  w  . j ava 2  s .c om*/
    group.add(rep);
    group.add(ind);

    class VoteActionListener implements ActionListener {
        public void actionPerformed(ActionEvent ex) {
            String choice = group.getSelection().getActionCommand();
            System.out.println("ACTION Candidate Selected: " + choice);
        }
    }

    class VoteItemListener implements ItemListener {
        public void itemStateChanged(ItemEvent ex) {
            String item = ((AbstractButton) ex.getItemSelectable()).getActionCommand();
            boolean selected = (ex.getStateChange() == ItemEvent.SELECTED);
            System.out.println("ITEM Candidate Selected: " + selected + " Selection: " + item);
        }
    }

    ActionListener al = new VoteActionListener();
    dem.addActionListener(al);
    rep.addActionListener(al);
    ind.addActionListener(al);

    ItemListener il = new VoteItemListener();
    dem.addItemListener(il);
    rep.addItemListener(il);
    ind.addItemListener(il);

    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container c = frame.getContentPane();
    c.setLayout(new GridLayout(4, 1));
    c.add(new JLabel("Please Cast Your Vote"));
    c.add(dem);
    c.add(rep);
    c.add(ind);
    frame.pack();
    frame.setVisible(true);
}

---

From source file:RadioButtonSample.java

public static void main(String args[]) {

    ActionListener actionListener = new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            AbstractButton aButton = (AbstractButton) actionEvent.getSource();
            boolean selected = aButton.getModel().isSelected();
            System.out.println(actionEvent.getActionCommand() + " - selected? " + selected);
        }//w  ww. j  a  v a 2s  . c  o  m
    };

    ItemListener itemListener = new ItemListener() {
        public void itemStateChanged(ItemEvent itemEvent) {
            AbstractButton aButton = (AbstractButton) itemEvent.getSource();
            int state = itemEvent.getStateChange();
            String selected = ((state == ItemEvent.SELECTED) ? "selected" : "not selected");
            System.out.println(aButton.getText() + " - selected? " + selected);
        }
    };

    JFrame frame = new JFrame("Radio Menu Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JMenuBar menuBar = new JMenuBar();
    JMenu menu = new JMenu("Menu");
    ButtonGroup buttonGroup = new ButtonGroup();
    menu.setMnemonic(KeyEvent.VK_M);

    JRadioButtonMenuItem emptyMenuItem = new JRadioButtonMenuItem();
    emptyMenuItem.setActionCommand("Empty");
    emptyMenuItem.addActionListener(actionListener);
    buttonGroup.add(emptyMenuItem);
    menu.add(emptyMenuItem);

    JRadioButtonMenuItem oneMenuItem = new JRadioButtonMenuItem("Partridge");
    oneMenuItem.addActionListener(actionListener);
    buttonGroup.add(oneMenuItem);
    menu.add(oneMenuItem);

    JRadioButtonMenuItem twoMenuItem = new JRadioButtonMenuItem("Turtle Doves", true);
    twoMenuItem.addActionListener(actionListener);
    buttonGroup.add(twoMenuItem);
    menu.add(twoMenuItem);

    JRadioButtonMenuItem threeMenuItem = new JRadioButtonMenuItem("French Hens", threeIcon);
    threeMenuItem.addItemListener(itemListener);
    buttonGroup.add(threeMenuItem);
    menu.add(threeMenuItem);

    JRadioButtonMenuItem fourMenuItem = new JRadioButtonMenuItem("Calling Birds", fourIcon, true);
    fourMenuItem.addActionListener(actionListener);
    buttonGroup.add(fourMenuItem);
    menu.add(fourMenuItem);

    JRadioButtonMenuItem fiveMenuItem = new JRadioButtonMenuItem(fiveIcon);
    fiveMenuItem.addActionListener(actionListener);
    fiveMenuItem.setActionCommand("Rings");
    buttonGroup.add(fiveMenuItem);
    menu.add(fiveMenuItem);

    JRadioButtonMenuItem sixMenuItem = new JRadioButtonMenuItem(sixIcon, true);
    sixMenuItem.addActionListener(actionListener);
    sixMenuItem.setActionCommand("Geese");
    buttonGroup.add(sixMenuItem);
    menu.add(sixMenuItem);

    menuBar.add(menu);
    frame.setJMenuBar(menuBar);
    frame.setSize(350, 250);
    frame.setVisible(true);
}

---

From source file:Main.java

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

    // File Menu, F - Mnemonic
    JMenu fileMenu = new JMenu("File");
    fileMenu.setMnemonic(KeyEvent.VK_F);
    menuBar.add(fileMenu);//from w  w  w  .  j  a  va2 s .c  o m

    // File->New, N - Mnemonic
    JMenuItem newMenuItem = new JMenuItem("New", KeyEvent.VK_N);
    fileMenu.add(newMenuItem);

    JCheckBoxMenuItem caseMenuItem = new JCheckBoxMenuItem("Case Sensitive");
    caseMenuItem.setMnemonic(KeyEvent.VK_C);
    fileMenu.add(caseMenuItem);

    ItemListener iListener = new ItemListener() {
        public void itemStateChanged(ItemEvent event) {
            Icon girlIcon = new ImageIcon("g.jpg");
            Icon boyIcon = new ImageIcon("b.jpg");
            AbstractButton aButton = (AbstractButton) event.getSource();
            int state = event.getStateChange();
            String newLabel;
            Icon newIcon;
            if (state == ItemEvent.SELECTED) {
                newLabel = "Girl";
                newIcon = girlIcon;
            } else {
                newLabel = "Boy";
                newIcon = boyIcon;
            }
            aButton.setText(newLabel);
            aButton.setIcon(newIcon);
        }
    };

    caseMenuItem.addItemListener(iListener);
    frame.setJMenuBar(menuBar);
    frame.setSize(350, 250);
    frame.setVisible(true);
}

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