menu.java

Java程序设计技巧与开发实例附书源代码。

public class Menu
{
   private String title;
   private String choices[] = null;
   private MenuUser user = null;

   public Menu(String _title, String _choices[], MenuUser _user)
   {
      title = _title;
      choices = _choices;
      user = _user;
      start();
   }

   private String getMenuChoice()
   {
      System.out.println("\n\t" + title + "\n");
      for (int i = 0; i < choices.length; i++)
      {
         System.out.println("\t" + choices[i]);
      }
      System.out.println("\n\tType 'Exit' to exit the menu");
      System.out.print("\n\tEnter your choice: ");
      return Console.readString();
   }

   private void start()
   {
      String choice = getMenuChoice();
      while (!choice.equalsIgnoreCase("exit"))
      {
         user.performAction(choice);
         choice = getMenuChoice();
      }
   }
}