// File: TestHashtable3.java
//
// Author: Rahul Simha
// Created: Sept 23, 1998
//
// Illustrates use of library Hashtable
// for any object.

import java.util.Hashtable;

// A class to store in the hashtable.

class Person {

  // Instance data.
  String name;
  String nickname;

  // Constructor.
  public Person (String nameInit, String nickInit)
  {
    name = nameInit;  nickname = nickInit;
  }

  // Accessor for name: we will use it as a key:
  public String getName ()
  {
    return name;
  }

  // Overrides Object's toString()
  public String toString()
  {
    return "Person: name=" + name + ", nickname=" + nickname;
  }

} // End of class "Person"


public class TestHashtable3 {

  public static void insert (Hashtable h, Person p)
  {
    Person p2 = (Person) h.put (p.getName(), p);
    if (p2 != null) 
      System.out.println ("Warning: " + p + " replaced " + p2);
  }

  public static void main (String[] argv)
  {
    Hashtable h = new Hashtable ();

    insert (h, new Person ("Franco", "Flatulent Franco"));
    insert (h, new Person ("Gita", "Gluttonous Gita"));
    insert (h, new Person ("Heinrich", "Hemorrhaging Heinrich"));

    // When retrieving you get the whole object back.
    Person p = (Person) h.get ("Heinrich");
    System.out.println (p);  
  }

}