Hashtable on PL/SQL

Some time ago, It's bubbled up that if there is a way to use hashtables in PL/SQL just like in Java which is very oftenly used. We associate the key-value relationship with arrays but since the keys are numeric we need to use associative arrays in order to produce alpha keys. There is a simple and self explanatory example below:

Java:

Hashtable<String, String> htable = new Hashtable<String, String>();

htable.put("MIDFIELDER", "SNEIJDER");

htable.put("STRIKER", "DROGBA");

System.out.println(htable.get("STRIKER"));

PL/SQL:

DECLARE

  TYPE t_htable IS TABLE OF VARCHAR2(30) INDEX BY VARCHAR2(30);

  htable t_htable;

BEGIN

  htable('MIDFIELDER') := 'SNEIJDER';

  htable('STRIKER') := 'DROGBA';

  dbms_output.put_line(htable('STRIKER'));

END;