Briefly explain the output of the following class. LODDIE public class Book { private String title - UNTITLED": public void Book() { title - "Harry Potter"; } public String getTitle() { return title; } public static void main(String[] args) { Book book - new Book ; System.out.println(book.getTitle()); } ABC 23 EE B I U x2 E 1 X2 Re-write the following piece of code using the while loop instead of the for loop structure. int ar[] {3, 6, 1, 9, @}; int sum for (int i = 0; i