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Java Multiple Choice Question:
Which option is valid?
| a. | Manipulation with ArrayList is slow because it internally uses array. | |
| b. | ArrayList is better for storing and accessing data. | |
| c. | LinkedList internally uses doubly linked list to store the elements. | |
| d. | All of the above. |
Expert Answer
Manipulationa.) If an element is removed from the ArrayList then we have to shift all the elements. That’s why manipulation with ArrayList is slow.
b.) Since, storing and accessing element in ArrayList requires constant amount of time. Therefore, ArrayList is better for storing and accessing data.
c.) Yes, LinkedList internally use doubly linked list to store the elements.
Hence, all the options are valid. Hence, option d is correct.
Hope it helps, feel free to comment in case of any query.
