Suppose a Linked-List Class with a Generic E Type Has

question 30

Multiple Choice

Suppose a linked-list class with a generic E type has been constructed with a java.awt.Component type variable. Consider its instance method locate with the following header: public void locate(MyLinkedList<? extends E>) { . . . }
Which type cannot be passed to method locate?
I MyLinkedList<JButton>
II MyLinkedList<Component>
III MyLinkedList<JTextField>

• A) I
• B) I and II
• C) II and III
• D) all can be passed to locate