"subjects cannot be resolved into a variable" The same line of code works somewhere else but not on the particular line?

Question

For this particular line

for (int p = 0; p<subjects.length; p++) {
    System.out.println(subjects[p] + "\t" + grades[p]);

It basically says "subjects cannot be resolved to a variable". However, almost the same code was used earlier but it works. I'm not sure how can I shorten this code so I'm sorry if it's long. Not sure the standard length of codes to be asked.

import java.util.Scanner;
public class gradingsystempractice{
    public static void main(String[] args) {
 
    
        String user, pass, inpUser, inpPass; //Subjects;
        //String[] subjects = {"CC102", "PE1", "NSTP1", "CC101", "WS101", "MMW", "GEE1", "GEE2"};
                int choice = 0;
                int grades[] = new int[8];
                double sum = 0.0;
        
    
       
        System.out.println("Register account to use Grading System");
        System.out.println("=== CASE SENSITIVE ===");
        
        Scanner scan = new Scanner(System.in);
        System.out.println("\nEnter a username:\t");
        user = scan.nextLine();
        
        Scanner passW = new Scanner(System.in);
        System.out.println("\nEnter a password:\t");
        pass = passW.nextLine();
        
    
        
        Scanner keyboard1 = new Scanner(System.in);
        System.out.println("\nUsername:\t");
        inpUser = keyboard1.nextLine();
        
        Scanner keyboard2 = new Scanner(System.in);
        System.out.println("\nPassword:\t");
        inpPass = keyboard2.nextLine();

        if (inpUser.equals(user) && inpPass.equals(pass)) {
            System.out.println("You have successfully logged in.");
        } else {
            System.out.println("Your username or password is incorrect.");
            
        }
        
        String studentID, studentLN, studentFN, studentMI, courseAndSection;
        
        System.out.println("\nWelcome to Grading System Application\n");
        System.out.println("Please enter the following student credentials to begin");
        System.out.println("\t\tStudent's Profile");
        
        Scanner get = new Scanner(System.in);
        System.out.print("Student #:\n\t");
            studentID = get.nextLine();
        System.out.print("Last name: \n\t");
            studentLN = get.nextLine();
        System.out.print("First name: \n\t");
            studentFN = get.nextLine();
        System.out.print("Middle Initial: \n\t");
            studentMI = get.nextLine();
        System.out.print("Year & Section: \n\t");
            courseAndSection = get.nextLine();
        System.out.print("\n");
        
        do {
            try {
                System.out.println("===========================================");
                System.out.println("Press 1 to Record grades");
                System.out.println("Press 2 to Display all grades");
                System.out.println("Press 3 to Calculate the average grade");
                System.out.println("Press 4 to Calculate the average grade of Midterm and Finalterm to display the Semestral Grade");
                System.out.println("Press 5 to Save and Exit the program");        
                System.out.println("===========================================");
         
                System.out.print("Enter your choice: \t\n");          
                choice = scan.nextInt();
                
                } catch (Exception e) {
                    System.out.println("Input numbers 1,2,3,4, or 5 only.");   
                } 
                if ( choice == 1 ) {
                    int gradeType = 0;

                    Scanner aScanner = new Scanner(System.in);

                    System.out.println("Press 1 to Record for Midterm");
                    System.out.println("Press 2 to Record for Final Term");
                    gradeType = aScanner.nextInt();

                    String[] subjects = { "NSTP", "MMW", "CC102", "Gender and Society", "PAEE", "CC101", "PE", "WS101" };
                    int[] midtermGrades = new int[subjects.length];
                    int[] finalGrades = new int[subjects.length];

                    int[] gradesToCollect;

                        if (gradeType == 1) {
                            gradesToCollect = midtermGrades;
                        } else {
                            gradesToCollect = finalGrades;
                        }

                        collectGrades(subjects, gradesToCollect, aScanner);

                        System.out.println("\n\nThese are the collected grades");
                        System.out.println("Mid  Final");
                        for (int i = 0; i < subjects.length; i++) {
                            System.out.format("%3d  %3d\n", midtermGrades[i], finalGrades[i]);
                        }
                            System.out.println("Enter Grade Successful");
                        }
                
                        if ( choice == 2 ) {
                            System.out.println("Subjects" + "\tGrades");
                            System.out.println("-----------------------------------------");

                            for (int p = 0; p<subjects.length; p++) {
                                System.out.println(subjects[p] + "\t" + grades[p]);
                            }
                        }

                if ( choice == 3 )
                {   
                    System.out.println("Average of grades: " + getAverage(grades));
                    System.out.println();
                }
                if ( choice == 4 ) {
                    System.out.println("Total of grades: " + getSum(grades));
                    System.out.println("Count of grades: " + grades.length);
                    System.out.println("Average of grades: " + getAverage(grades));
                    System.out.println();
                }
                                
        }   
        while ( choice != 5);
        }
     
    public static double getAverage(int[] array)
    {
        int sum = 0;
        for(int i : array) sum += i;
        return ((double) sum)/array.length;
    }
     
    public static double getSum(int[] array)
    {
        int sum = 0;
        for (int i : array) 
        {
         sum += i;
        }
        return sum;
        }

    public static void collectGrades(final String[] subjects, final int[] grades, Scanner scn) {

        System.out.format("Enter %s subjects and their corresponding grades:",
                subjects.length);
        System.out.println();

        for (int i = 0; i < subjects.length; i++) {
            System.out.format("Enter Grade for %s : ", subjects[i]);
            grades[i] = scn.nextInt();
            if (i == (subjects.length))
                System.out.println();
        }
    }
}

To explain this further, the "if ( choice == 2 )" should display the grades recorded, but apparently it couldn't because it is an error.