Hashtables

import java.util.Hashtable;

Hashtable ht = new Hashtable ();

String key = “Christopher Columbus”;

Integer value = new Integer(1492);

ht.put(key, value);

Integer year = ht.get(key);

ht.remove(key)

int theSize = ht.size();

Enumeration enum = ht.elements();

Enumeration keys = ht.keys();