Consider the following code snippet: public class LinkedList { private E defaultValue; public void add(E value, int n) { ...} private static class Node { public E data; public Node next; } ... } What is wrong with this code? A)Cannot declare the variable defaultValue as a generic type. B)Cannot pass a generic type as an argument to a method. C)Cannot have a static method in a generic class as shown. D)Cannot have a static inner class in a generic class as shown.

Question

Consider the following code snippet:
public class LinkedList<E>
{
private E defaultValue;
public void add(E value, int n) { ...}
private static class Node { public E data; public Node next; }
...
}
What is wrong with this code?
A)Cannot declare the variable defaultValue as a generic type.
B)Cannot pass a generic type as an argument to a method.
C)Cannot have a static method in a generic class as shown.
D)Cannot have a static inner class in a generic class as shown.

Quizplus · Accepted Answer

The issue is with the static inner class Node trying to use the generic type E. Since the class is static, it cannot access the generic type parameter of the outer class. Static members belong to the class itself, not to instances of the class, and since the type parameter E is tied to instances, the static inner class cannot use it directly.

Consider the Following Code Snippet