Java tutorial
/* * Output: * a: a b: 2.0 c: b d: 30 * * */ import java.util.Dictionary; import java.util.Hashtable; public class Main { public static void main(String args[]) { Dictionary ht = new Hashtable(); ht.put("a", "a"); ht.put("b", new Double(2)); ht.put("c", "b"); ht.put("d", new Integer(30)); show(ht); } static void show(Dictionary d) { System.out.println("a: " + d.get("a")); System.out.println("b: " + d.get("b")); System.out.println("c: " + d.get("c")); System.out.println("d: " + d.get("d")); } }