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# DAO con PreparedStatement

1. Crea unha nova clase DAO para a clase Profesor que traballe con PreparedStatement. Copia os métodos da clase que creaches no exercicio anterior e modificaos axustando os cambios necesarios para funcionar con esta clase:
   1. findAll(): List\<Profesor>
   2. findById(int id): Optional\<Profesor>
   3. insert(Profesor p): int
   4. update(Profesor p): Optional\<Profesor>
   5. remove(int id): boolean
2. Actualiza a clase App para verificar que o novo DAO funciona adecuadamente.


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