LISTING 18.2 ComputeFibonacci .java 1 import java. util. Scanner; 3 public class computeFibonacci 4 Main method 5 public static void main(String[] args) Create a Scanner Scanner input new Scanner(System. in); System Enter an index for a Fibonacci number: int i ndex input nextIntC); 10 11 Find and display the Fibonacci number System out.printlnC"The Fibonacci number at index index is fib(index)) 13 14 15 16 The method for finding the Fibonacci number 17 public static long fib (long index) 18 if (index 0 Base case 19 return 0