What will the following program print? public class Question 6 { public static void main(String[] args) { int x = 9; double i 4.0; char c='7'; System.out.println(f(i, x)); } } public static double f() { } return 35; public static double f (int a) { } return 2.0*a; public static double f(int a, double b) { double x = a + b; } return x; public static double f (double a, int b) { String = new String(); s = s + " + 4"; return a b;