Linked lists are good data structures for problems that require frequent accesses to random items, especially items in the middle of the sequence.

Which of these best describes that regular telephone line that is used in most homes today?

A. Coaxial cable B. modem cable C. twisted - pair wire D. fiber- optic cable E. LAN

Identify and describe the type errors in the following code.

``` 1 public class GenericStuff { 2 public static void main ( String args[] ) { 3 Pair pPair = new Pair( new Player( "Tom" ), 4 new Player( "Rohal" ) ); 5 Pair rentalPair new Pair( new Rental(), new Item() ); 6 Rental r1 = Rental(), rental2 = new Rental(); 7 8 pPair.swapElements(); 9 System.out.println( "Rental elements are " + 10 rentalPair.toString() ); 11 rentalPair.swapElements( rental1, rental2 ); 12 Object o = rentalPair.getFirstElement(); 13 } 14 } ```