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RadioButtonMenuItemExample.javaAPI DocExample3416Thu Oct 24 20:14:24 BST 2002None

RadioButtonMenuItemExample

public class RadioButtonMenuItemExample extends JPanel

Fields Summary
public JTextPane
pane
public JMenuBar
menuBar
public JToolBar
toolBar
Constructors Summary
public RadioButtonMenuItemExample()

        menuBar = new JMenuBar();
        JMenu justifyMenu = new JMenu("Justify");
        ActionListener actionPrinter = new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                try { pane.getStyledDocument().insertString(0 ,
                      "Action ["+e.getActionCommand()+"] performed!\n", null);
                } catch (Exception ex) { ex.printStackTrace(); }
            }
        };
        JRadioButtonMenuItem leftJustify = new
               JRadioButtonMenuItem("Left", new ImageIcon("left.gif"));
        leftJustify.setHorizontalTextPosition(JMenuItem.RIGHT);
        leftJustify.setAccelerator(KeyStroke.getKeyStroke('L",
                        Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()));
        leftJustify.addActionListener(actionPrinter);
        JRadioButtonMenuItem rightJustify = new
               JRadioButtonMenuItem("Right", new ImageIcon("right.gif"));
        rightJustify.setHorizontalTextPosition(JMenuItem.RIGHT);
        rightJustify.setAccelerator(KeyStroke.getKeyStroke('R",
                        Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()));
        rightJustify.addActionListener(actionPrinter);
        JRadioButtonMenuItem centerJustify = new
               JRadioButtonMenuItem("Center", new ImageIcon("center.gif"));
        centerJustify.setHorizontalTextPosition(JMenuItem.RIGHT);
        centerJustify.setAccelerator(KeyStroke.getKeyStroke('M",
                        Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()));
        centerJustify.addActionListener(actionPrinter);
        JRadioButtonMenuItem fullJustify = new
               JRadioButtonMenuItem("Full", new ImageIcon("full.gif"));
        fullJustify.setHorizontalTextPosition(JMenuItem.RIGHT);
        fullJustify.setAccelerator(KeyStroke.getKeyStroke('F",
                        Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()));
        fullJustify.addActionListener(actionPrinter);

        ButtonGroup group = new ButtonGroup();
        group.add(leftJustify);
        group.add(rightJustify);
        group.add(centerJustify);
        group.add(fullJustify);

        justifyMenu.add(leftJustify);
        justifyMenu.add(rightJustify);
        justifyMenu.add(centerJustify);
        justifyMenu.add(fullJustify);

        menuBar.add(justifyMenu);
        menuBar.setBorder(new BevelBorder(BevelBorder.RAISED));
Methods Summary
public static voidmain(java.lang.String[] s)


        RadioButtonMenuItemExample example = new
                                        RadioButtonMenuItemExample();
        example.pane = new JTextPane();
        example.pane.setPreferredSize(new Dimension(250, 250));
        example.pane.setBorder(new BevelBorder(BevelBorder.LOWERED));

        JFrame frame = new JFrame("Menu Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setJMenuBar(example.menuBar);
        frame.getContentPane().add(example.pane, BorderLayout.CENTER);
        frame.pack();
        frame.setVisible(true);