Java by API/javax.swing/JRadioButtonMenuItem

JRadioButtonMenuItem: setAccelerator(KeyStroke key)

 
import java.awt.Event;
import javax.swing.ButtonGroup;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.KeyStroke;
public class MainClass extends JFrame {
  public MainClass() {
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    setJMenuBar(menuBar);
    JMenu fileMenu = new JMenu("File");
    JMenu elementMenu = new JMenu("Elements");
    fileMenu.setMnemonic("F");
    elementMenu.setMnemonic("E");
    // Construct the file pull down menu
    newItem = fileMenu.add("New");
    openItem = fileMenu.add("Open");
    closeItem = fileMenu.add("Close");
    fileMenu.addSeparator();
    saveItem = fileMenu.add("Save");
    saveAsItem = fileMenu.add("Save As...");
    JMenu colorMenu = new JMenu("Color");
    fileMenu.addSeparator();
    printItem = fileMenu.add("Print");
    newItem.setAccelerator(KeyStroke.getKeyStroke("N", Event.CTRL_MASK));
    openItem.setAccelerator(KeyStroke.getKeyStroke("O", Event.CTRL_MASK));
    saveItem.setAccelerator(KeyStroke.getKeyStroke("S", Event.CTRL_MASK));
    printItem.setAccelerator(KeyStroke.getKeyStroke("P", Event.CTRL_MASK));
    elementMenu.add(lineItem = new JRadioButtonMenuItem("Line", true));
    elementMenu
        .add(rectangleItem = new JRadioButtonMenuItem("Rectangle", false));
    elementMenu.add(circleItem = new JRadioButtonMenuItem("Circle", false));
    elementMenu.add(curveItem = new JRadioButtonMenuItem("Curve", false));
    ButtonGroup types = new ButtonGroup();
    types.add(lineItem);
    types.add(rectangleItem);
    types.add(circleItem);
    types.add(curveItem);
    lineItem.setAccelerator(KeyStroke.getKeyStroke("L", Event.CTRL_MASK));
    rectangleItem.setAccelerator(KeyStroke.getKeyStroke("E", Event.CTRL_MASK));
    circleItem.setAccelerator(KeyStroke.getKeyStroke("I", Event.CTRL_MASK));
    curveItem.setAccelerator(KeyStroke.getKeyStroke("V", Event.CTRL_MASK));
    elementMenu.addSeparator();
    elementMenu.add(colorMenu); // Add the sub-menu
    colorMenu.add(redItem = new JCheckBoxMenuItem("Red", false));
    colorMenu.add(yellowItem = new JCheckBoxMenuItem("Yellow", false));
    colorMenu.add(greenItem = new JCheckBoxMenuItem("Green", false));
    colorMenu.add(blueItem = new JCheckBoxMenuItem("Blue", true));
    // Add element color accelerators
    redItem.setAccelerator(KeyStroke.getKeyStroke("R", Event.CTRL_MASK));
    yellowItem.setAccelerator(KeyStroke.getKeyStroke("Y", Event.CTRL_MASK));
    greenItem.setAccelerator(KeyStroke.getKeyStroke("G", Event.CTRL_MASK));
    blueItem.setAccelerator(KeyStroke.getKeyStroke("B", Event.CTRL_MASK));
    menuBar.add(fileMenu);
    menuBar.add(elementMenu);
  }
  private JMenuBar menuBar = new JMenuBar();
  // File menu items
  private JMenuItem newItem, openItem, closeItem, saveItem, saveAsItem,
      printItem;
  // Element menu items
  private JRadioButtonMenuItem lineItem, rectangleItem, circleItem, curveItem,
      textItem;
  private JCheckBoxMenuItem redItem, yellowItem, greenItem, blueItem;
  public static void main(String[] args) {
    JFrame aWindow = new MainClass();
    aWindow.setSize(200,200);
    aWindow.setVisible(true);
  }
}

JRadioButtonMenuItem: setFont(Font font)

  
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ButtonGroup;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JRadioButtonMenuItem;
public class Main extends JFrame {
  public static final String FontName[] = { "Serif", "SansSerif", "Courier" };
  private Font[] fonts = new Font[FontName.length];
  protected JMenuItem[] fontMenus;
  public Main() {
    super();
    setSize(450, 350);    
    for (int k = 0; k < FontName.length; k++)
      fonts[k] = new Font(FontName[k], Font.PLAIN, 12);
    JMenuBar menuBar = createMenuBar();
    setJMenuBar(menuBar);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setVisible(true);
  }
  protected JMenuBar createMenuBar() {
    final JMenuBar menuBar = new JMenuBar();
    JMenu mFont = new JMenu("Font");
    mFont.setMnemonic("o");
    ButtonGroup group = new ButtonGroup();
    fontMenus = new JMenuItem[FontName.length];
    for (int k = 0; k < FontName.length; k++) {
      int m = k + 1;
      fontMenus[k] = new JRadioButtonMenuItem(m + " " + FontName[k]);
      boolean selected = (k == 0);
      fontMenus[k].setSelected(selected);
      fontMenus[k].setMnemonic("1" + k);
      fontMenus[k].setFont(fonts[k]);
      fontMenus[k].addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent arg0) {
          System.out.println(((JComponent) arg0.getSource())
              .getFont());
        }
      });
      group.add(fontMenus[k]);
      mFont.add(fontMenus[k]);
    }
    menuBar.add(mFont);
    return menuBar;
  }
  public static void main(String argv[]) {
    new Main();
  }
}

JRadioButtonMenuItem: setMnemonic(int mnemonic)

  
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ButtonGroup;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JRadioButtonMenuItem;
public class Main extends JFrame {
  public static final String FontName[] = { "Serif", "SansSerif", "Courier" };
  private Font[] fonts = new Font[FontName.length];
  protected JMenuItem[] fontMenus;
  public Main() {
    super();
    setSize(450, 350);    
    for (int k = 0; k < FontName.length; k++)
      fonts[k] = new Font(FontName[k], Font.PLAIN, 12);
    JMenuBar menuBar = createMenuBar();
    setJMenuBar(menuBar);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setVisible(true);
  }
  protected JMenuBar createMenuBar() {
    final JMenuBar menuBar = new JMenuBar();
    JMenu mFont = new JMenu("Font");
    mFont.setMnemonic("o");
    ButtonGroup group = new ButtonGroup();
    fontMenus = new JMenuItem[FontName.length];
    for (int k = 0; k < FontName.length; k++) {
      int m = k + 1;
      fontMenus[k] = new JRadioButtonMenuItem(m + " " + FontName[k]);
      boolean selected = (k == 0);
      fontMenus[k].setSelected(selected);
      fontMenus[k].setMnemonic("1" + k);
      fontMenus[k].setFont(fonts[k]);
      fontMenus[k].addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent arg0) {
          System.out.println(((JComponent) arg0.getSource())
              .getFont());
        }
      });
      group.add(fontMenus[k]);
      mFont.add(fontMenus[k]);
    }
    menuBar.add(mFont);
    return menuBar;
  }
  public static void main(String argv[]) {
    new Main();
  }
}

JRadioButtonMenuItem: setSelected(boolean b)

  
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ButtonGroup;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JRadioButtonMenuItem;
public class Main extends JFrame {
  public static final String FontName[] = { "Serif", "SansSerif", "Courier" };
  private Font[] fonts = new Font[FontName.length];
  protected JMenuItem[] fontMenus;
  public Main() {
    super();
    setSize(450, 350);    
    for (int k = 0; k < FontName.length; k++)
      fonts[k] = new Font(FontName[k], Font.PLAIN, 12);
    JMenuBar menuBar = createMenuBar();
    setJMenuBar(menuBar);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setVisible(true);
  }
  protected JMenuBar createMenuBar() {
    final JMenuBar menuBar = new JMenuBar();
    JMenu mFont = new JMenu("Font");
    mFont.setMnemonic("o");
    ButtonGroup group = new ButtonGroup();
    fontMenus = new JMenuItem[FontName.length];
    for (int k = 0; k < FontName.length; k++) {
      int m = k + 1;
      fontMenus[k] = new JRadioButtonMenuItem(m + " " + FontName[k]);
      boolean selected = (k == 0);
      fontMenus[k].setSelected(selected);
      fontMenus[k].setMnemonic("1" + k);
      fontMenus[k].setFont(fonts[k]);
      fontMenus[k].addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent arg0) {
          System.out.println(((JComponent) arg0.getSource())
              .getFont());
        }
      });
      group.add(fontMenus[k]);
      mFont.add(fontMenus[k]);
    }
    menuBar.add(mFont);
    return menuBar;
  }
  public static void main(String argv[]) {
    new Main();
  }
}

new JRadioButtonMenuItem(String text)

 
import java.awt.event.KeyEvent;
import javax.swing.ButtonGroup;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JRadioButtonMenuItem;
public class MainClass {
  public static void main(String args[]) {
    JFrame f = new JFrame("JRadioButtonMenuItem Sample");
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JMenuBar bar = new JMenuBar();
    JMenu menu = new JMenu("Options");
    menu.setMnemonic(KeyEvent.VK_O);
    ButtonGroup group = new ButtonGroup();
    JRadioButtonMenuItem menuItem = new JRadioButtonMenuItem("A");
    group.add(menuItem);
    menu.add(menuItem);
    menuItem = new JRadioButtonMenuItem("B");
    group.add(menuItem);
    menu.add(menuItem);
    menuItem = new JRadioButtonMenuItem("C");
    group.add(menuItem);
    menu.add(menuItem);
    bar.add(menu);
    f.setJMenuBar(bar);
    f.setSize(300, 200);
    f.setVisible(true);
  }
}