// MenuExample.java
// A simple example of constructing and using menus.
//
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
public class MenuExample extends JPanel {
public JTextPane pane;
public JMenuBar menuBar;
public MenuExample() {
menuBar = new JMenuBar();
JMenu formatMenu = new JMenu("Justify");
formatMenu.setMnemonic('J');
MenuAction leftJustifyAction = new MenuAction("Left",
new ImageIcon("left.gif"));
MenuAction rightJustifyAction = new MenuAction("Right",
new ImageIcon("right.gif"));
MenuAction centerJustifyAction = new MenuAction("Center",
new ImageIcon("center.gif"));
MenuAction fullJustifyAction = new MenuAction("Full",
new ImageIcon("full.gif"));
JMenuItem item;
item = formatMenu.add(leftJustifyAction);
item.setMnemonic('L');
item = formatMenu.add(rightJustifyAction);
item.setMnemonic('R');
item = formatMenu.add(centerJustifyAction);
item.setMnemonic('C');
item = formatMenu.add(fullJustifyAction);
item.setMnemonic('F');
menuBar.add(formatMenu);
menuBar.setBorder(new BevelBorder(BevelBorder.RAISED));
}
class MenuAction extends AbstractAction {
public MenuAction(String text, Icon icon) {
super(text,icon);
}
public void actionPerformed(ActionEvent e) {
try { pane.getStyledDocument().insertString(0 ,
"Action ["+e.getActionCommand()+"] performed!\n", null);
} catch (Exception ex) { ex.printStackTrace(); }
}
}
public static void main(String s[]) {
MenuExample example = new MenuExample();
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);
}
}
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