Popup.java

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import com.bruceeckel.swing.*;

public class Popup extends JApplet {
  String[] flavors = { "Chocolate", "Strawberry",
    "Vanilla Fudge Swirl", "Mint Chip", 
    "Mocha Almond Fudge", "Rum Raisin", 
    "Praline Cream", "Mud Pie" };

  JPopupMenu popup = new JPopupMenu();
  JTextField t = new JTextField(10);

  public void init() {
    Container cp = getContentPane();
    cp.setLayout(new FlowLayout());
    cp.add(t);
    ActionListener al = new ActionListener() {
      public void actionPerformed(ActionEvent e){
        t.setText(
          ((JMenuItem)e.getSource()).getText());
      }
    };

    for(int i = 0; i < flavors.length; i++) {
      JMenuItem mi = new JMenuItem(flavors[i]);
      mi.addActionListener(al);
      popup.add(mi);
      // Add separators at intervals:
      if((i+1) % 3 == 0) 
        popup.addSeparator();
    }

    PopupListener pl = new PopupListener();
    addMouseListener(pl);
  }

  class PopupListener extends MouseAdapter {
    public void mousePressed(MouseEvent e) {
      maybeShowPopup(e);
    }
    public void mouseReleased(MouseEvent e) {
      maybeShowPopup(e);
    }
    private void maybeShowPopup(MouseEvent e) {
      if(e.isPopupTrigger()) {
        popup.show(
          e.getComponent(), e.getX(), e.getY());
      }
    }
  }
  public static void main(String[] args) {
    Console.run(new Popup(), 300, 200);
  }
} ///:~