// this is an inner class, specific for one type of action
    // the code would need one inner class per each possible action
    // this shows the Domain Logic and GUI as tightly "coupled"
    // the advantage to any of these approaches is that Domain Logic
    // can "see" the widgets and operate on them, e.g. "ta", the TextArea
    class MenuBookListener implements ActionListener { // knows how to respond
      public void actionPerformed(ActionEvent e) {     // must have this method
        ta.append(mb.toString());                      // append the full MenuBook to the ta
      }
    }
    MenuBookListener mbl = new MenuBookListener();     // instantiate this inner class
    showMenuBook.addActionListener(mbl);               // identify this instance as the listener for the button

    showMenuBook.addActionListener(new MenuBookListener());  // instead: just new it right here

    showMenuBook.addActionListener(                    // new way: anonymous inner class
       new ActionListener() {                          // new one without a name
         public void actionPerformed(ActionEvent e) {  // and give the same code as above
           ta.append(mb.toString());
         }
       }
    );

  ...
  
  // PlannerApplet implements ActionListener
  // Here is the required method 
  public void actionPerformed(ActionEvent e) {
    String cmd = (String)e.getActionCommand();
    if (cmd.equals("Show Book"))                 // what event just occurred?
      ta.append(mb.toString());                  // display entire MenuBook to ta
  }

Get the name of the new menu, and insert it at the front of the JComboBox.
Force the front of the JComboBox to be displayed.
Based on the JRadioButtons, determine which MenuType is selected.
Create a new FoodMenu and add it to the MenuBook.

Get the name of the menu from the JComboBox.
Get the menu object from the HashMap using the name as the key.
Remove the menu object from the MenuBook.
Remove the name from the HashMap.
Remove the name from the JComboBox.

cd ex7
rm planner/*.class
rm planner/gui/*.class
rm planner/gui/domain/*.class

javac planner/Planner.java
java planner/Planner

javadoc *.java gui/*.java gui/domain/*.java