// declare & allocate Hashtable, using array notation
Hashtable() animal;
   // set up associations cow => moo, pig => oink 
   animal[ "cow" ] = "moo" ;
   animal[ "pig" ] = "oink" ;

   // get, note lack of cast 
   String noise = animal[ cow ];
   if  ( noise == null ) noise = "don't know" ;

   // iterate over all animals 
   for each key in animal
     {
     System.out.println ( key +  " says  " + animal[ key ] );
     }