Here is a simplified class for representing books owned by library:

class Book $\{$

String title, author; $//$ title, author

String callNumber; $//$ call number, such as $"$QA$567\mathrm{.}23$ P$23"$

$\}$

Suppose that a library owns $27,532$ books and that information about all the books has already been stored in an array

Book$[]$ books $=$ new books$[27532]$;

a$)$ A science book is one whose call number begins with the letter $\text{'}$Q$\text{'}.$ Write a method that will count the number of science books owned by the library and return that number. HINT there is a string method called charAt$().$

b$)$ Write another method that will print out the answer to this question: Does the library own more books by "Isaac Asimov" or more books by "William Shakespeare"? Write a code segment that will find out. Print the answer with System.out.println$().$