Suppose your program frequently tests whether a student is in a soccer team, what is the best data structure to store the students in a soccer team?
A) ArrayList
B) HashSet
C) TreeSet
D) LinkedList
E) Vector

Question

Suppose your program frequently tests whether a student is in a soccer team, what is the best data structure to store the students in a soccer team? 
A) ArrayList
B) HashSet
C) TreeSet
D) LinkedList
E) Vector

Quizplus · Accepted Answer

A HashSet offers constant time performance for the basic operations (add, remove, contains, and size) and can efficiently store a large number of items. Since the program frequently tests whether a student is in a soccer team, performance is an important consideration. Additionally, a HashSet does not allow for duplicate entries, which could be useful in ensuring that the program accurately reflects the composition of the soccer team.

Suppose Your Program Frequently Tests Whether a Student Is in a Soccer