// Order key-value pairs in descending lexicographical order of keys.
OrderedMap map = new OrderedMap( new GreaterString(), true );
map.add( "10", "X" );
map.add( "10", "ten" );
map.add( "5", "V" );
map.add( "5", "five" );
System.out.println( "map = " + map );
int n = map.count( "10" );
System.out.println( "There are " + n + " key-value pairs with key 10" );
System.out.println( "Removing all occurrences of 10..." );
map.remove( "10" );
n = map.count( "10" );
System.out.println( "There are now " + n + " key-value pairs with key 10" );
System.out.println( "map = " + map );
