Determine the correctness of the MyLinkedList generic class code below. Public class MyLinkedList { Private MyNode first; Public E getFirst() { return first.data; } Private class MyNode { Private E data; Private MyNode next; } } A) MyNode cannot refer to type variable E B) first.data will cause a compiler error C) the inner class MyNode cannot be private D) the code is correct

Question

Determine the correctness of the MyLinkedList generic class code below.
Public class MyLinkedList<E>
{
Private MyNode first;
Public E getFirst() { return first.data; }
Private class MyNode
{
Private E data;
Private MyNode next;
}
}
A) MyNode cannot refer to type variable E
B) first.data will cause a compiler error
C) the inner class MyNode cannot be private
D) the code is correct

Quizplus · Accepted Answer

The code is correct. The inner class MyNode can be private, and MyNode can refer to the type variable E. The first.data will not cause a compiler error because first is of type MyNode, which has a data field of type E.

Determine the Correctness of the MyLinkedList Generic Class Code Below