(3) Continuous learning required to maintain currency of commercial certification will be defined by the certification provider. Continuous learning credits obtained in support of commercial certification maintenance or sustainment can be used to meet overall DON Cyberspace/IT continuous education requirements.
void. adj. referring to a statute, contract, ruling or anything which is null and of no effect. A law or judgment found by an appeals court to be unconstitutional is void, a rescinded (mutually cancelled) contract is void, and a marriage which has been annulled by court judgment is void.
Definition: The void keyword denotes that a method does not have a return type. However, even though a constructor method can never have a return type, it does not have the void keyword in its declaration. The method displayBookData() does not have a return type as shown by the use of the void keyword.