What is printed as a result of executing the following program? public class BirkbecksPiExamPR21 {
public static void main(String[] args) {
int[] v = { 1, 2, 3, 4);
print();
for (int i = 1; i < v. length; i++) {
fiddle(v, i, v[i]);
print();
)
public static void fiddle(int[] arr, int idx, int v) {
idx--;
arr[idx + 1] = arr[idx]
[+ v;
public static void print(int[] a) {
System. out. print(a[0]);
for (int i = 1; i < a. length; i++)
System. out. print(", " + a[i]);
System. out. println();
>
You should explain why the output is produced.

Avariable of the data type arrays is storing 10 quantities. what is true about these quantities? a. the quantities all have different characteristics. b. the quantities all have the same characteristics. c. five quantities have the same and five have different characteristics. d. it is necessary for all quantities to be integers. e. it is necessary for all quantities to be characters.

What are listed in the vertical columns across the top of the event editor? a. file names b. conditions c. check marks d. action types

Write a program that uses a random number generator to generate a two digit positive integer and allows the user to perform one or more of the following operations: a. double the number. b. reverse the digits of the number. c. raise the number to the power of 2, 3, or 4. d. sum the digits of the number. e. if the number is a two-digit number, then raise the first digit to the power of the second digit. f. if the number is a three-digit number and the last digit is less than or equal to 4, then raise the first two digits to the power of the last digit. after performing an operation if the number is less than 10, add 10 to the number. also, after each operation determine if the number is prime. each successive operation should be performed on the number generated by the last operation. your program should not contain any global variables and each of these operations must be implemented by a separate function. also, your program should be menu driven. 7. (fraction calculator) write a program that