The disadvantage(s) of using an ArrayList instead of an array include: a. an Arr

Question

The disadvantage(s) of using an ArrayList instead of an array include: a. an Array List is less efficient than an array b. an Array List doesn't use an intuitive notation such as square brackets to access elements C. an ArrayList cannot store data elements of a primitive type d. all of the above An interface may contain: a. private variables b. global variables c. final variables (constants) d. instance variables Marking the Node class private in a linked list data structure is an example of a. inheritance b. encapsulation c. polymorphism d. abstraction

Explanation / Answer

28 Ans) b

Explanation:- To access elements of an arraylist we have to use 'get' method on arraylist

29 Ans) b,c,d

Explanation:- Private variables are not allowed in interfaces. But it is advisable to use only constants in interfaces.

30 Ans) b

Explanation:- Encapsulation is a property of object oriented programming by which we encapsulate the data in the class.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.