One way to iterate through a Map is
A) to obtain the Map's iterator and use it
B) to obtain the set of keys for the stored elements,and then iterate through that set of keys
C) to use an integer index in a for loop to step through the elements
D) None of the above

Question

Quizplus · Accepted Answer

Iterating through the set of keys is the best approach because the keys are guaranteed to be unique and it allows for easy access to corresponding values. Using an iterator may be less efficient since it requires creating an additional object and extra method calls, and using an integer index would not work since Maps do not have a sequential order.

One Way to Iterate Through a Map Is