Final answer:
The method setActors should validate that there's at least one item in the list, which is true. Validation checks are crucial in programming to ensure that inputs meet the necessary criteria for further operations. An if-statement can be used to enforce this validation.
Step-by-step explanation:
The question addresses a method in programming, specifically whether the method setActors(ArrayList actors) should validate that there's at least one item in the list. The answer to this is true. It's a common practice in software development to validate inputs to methods to ensure they meet the expected criteria. In this case, if the intention of the method is to set a list of actors, it would make sense to verify that the list is not empty. This could be done with a simple check, such as:
public boolean setActors(ArrayList actors) {
if(actors == null || actors.isEmpty()) {
return false;
}
// Proceed with setting the actors
return true;
}
This code snippet shows how you might write the validation to ensure there's at least one actor in the list. If the list is null or empty, it returns false; otherwise, it proceeds and returns true.