Java tutorial
import java.util.Enumeration; import java.util.Hashtable; public class MainClass { public static void main(String[] s) { Hashtable table = new Hashtable(); table.put("key1", "value1"); table.put("key2", "value2"); table.put("key3", "value3"); Enumeration e = table.keys(); while (e.hasMoreElements()) { String key = (String) e.nextElement(); System.out.println(key + " : " + table.get(key)); } } }