Java tutorial
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(); } }