import java.io.*;
   import java.util.*;


/**
 * A driver that can be used to test the LengthDatabase class
 *
 * @author  Prof. David Bernstein, James Madison University
 * @version 1.0  
 */
   public class DatabaseDriver1
   {
    /**
     * The entry point of the application
     *
     * @param args   The command line arguments
     */
      public static void main(String[] args) throws IOException
      {
         Length                  aLength, result;
         LengthDatabase          database;
         Scanner                 scanner;        
         String                  name, prompt;
      
         prompt   = "\nName to look for (Q to exit): ";       
         database = new LengthDatabase();
         name = "";
      
         aLength = new Length(5, 8);
         database.add("Mike", aLength);
      
         aLength = new Length(6, 2);
         database.add("Bill", aLength);
      
         aLength = new Length(5, 9);
         database.add("Nancy", aLength);
      
         scanner = new Scanner(System.in);
      
         System.out.print(prompt);
       
         do 
         {
            if (scanner.hasNext())
            {
               name = scanner.nextLine();
            }
            if (!name.equalsIgnoreCase("Q"))
            {  
               result = database.get(name);
               if (result != null)
               {
                  System.out.println(name + " is " + result);
               }
               else
               {
                  System.out.println("I don't know how tall " + name + " is.");
               }
            
               System.out.print(prompt);
            }    
         }
         while (!name.equalsIgnoreCase("Q") && scanner.hasNext());
      }
   
   }