I'm trying to write this Java program that reads student names and their scores from a file. I have to create 2 methods inside of main that calculate the average grade and determines the appropriate letter value and output that to a separate file. So far I have it able to do the calculations, however I am having problems with the methods (where they go, how to define/call, etc) Obviously, methods have given me a lot of trouble before and are doing it again. I really need help because this assignment is due soon and I have no clue what to do Code: import java.io.*; import java.util.*; public class Lab2_1 { public static void main (String[]args) throws FileNotFoundException { Scanner input = new Scanner(new File("Ch7_Ex14Data.txt")); // reading from file public static double averageMethod(double test1 + test2 + test3 + test4 + test5){} public static String letterMethod(double calculateAverage) { if (calculateAverage >= 100){ System.out.println("A"); }else if(calculateAverage >= 89){ System.out.println("B"); }else if (calculateAverage >= 79){ System.out.println("C"); }else if (calculateAverage >= 69){ System.out.println("D"); }else System.out.println("F"); } double test1, test2, test3, test4, test5; String firstName; double calculateAverage; calculateAverage=0; while (input.hasNext()) { firstName = input.next(); System.out.print(firstName + "\t"); test1 = input.nextDouble(); test2 = input.nextDouble(); test3 = input.nextDouble(); test4 = input.nextDouble(); test5 = input.nextDouble(); System.out.print((test1 + test2 + test3 + test4 + test5)/5); System.out.print("\t"); double average= averageMethod(test1 + test2 + test3 + test4 + test5)/5.0; double letter = letterMethod(return calculateAverage); } input.close(); } } ]