AP Computer Science Amediummcq1 pt
An ArrayList is preferable to an array when
A.the number of elements changes during execution
B.the size is fixed and known
C.only primitives are stored
D.memory must be minimal
Explanation
Core Concept
ArrayLists resize automatically.
Correct Answer
Athe number of elements changes during execution
More Unit 7: ArrayList practice questions
- hardWhich code reverses an ArrayList<Integer> list in place?
- hardTo remove every negative value from an Integer list, use
- mediumAn ArrayList is backed internally by
- mediumWhich expression finds the last element of a nonempty Integer list?
- mediumReading the size of a null ArrayList reference causes
Practice more AP Computer Science A questions with full explanations
Practice Unit 7: ArrayList Questions →