Hello , I'm attempting complete my Java code but I'm getting an error import java.util.Scanner; public class GradeCalculatorFinal.java{  public static void main(String[] args) {      // Total points / total credits      // points for a class = grade value * credits      // A = 4, B = 3, C = 2, D = 1....                  Scanner scanner = new Scanner(System.in);                  System.out.println("Enter grade:");      String grade = scanner.nextLine();            Integer points = 0;      Integer gradeValue = 0;      if (grade.equalsIgnoreCase("A")) {          gradeValue = 4;      } else if (grade.equalsIgnoreCase("B")) {          gradeValue = 3;      } else if (grade.equalsIgnoreCase("C")) {          gradeValue = 2;          } else if (grade.equalsIgnoreCase("D")) {          gradeValue = 1;          } else if (grade.equalsIgnoreCase("F")) {          gradeValue = 0;      }  else {           System.out.println("You didn't enter a valid grade :(");      }        Integer points = gradeValue * Integer.parseInt(credits);            Integer gpa = points / Integer.parseInt(credits);            System.out.println("Credits: " + credits);      System.out.println("Grades: " + grades);      System.out.println("Points: " + points);      System.out.println("GPA: " + gpa);            scanner.close();     }  }

Hello , I'm attempting complete my Java code but I'm getting an error

import java.util.Scanner;

public class GradeCalculatorFinal.java{

 public static void main(String[] args) {
     // Total points / total credits
     // points for a class = grade value * credits
     // A = 4, B = 3, C = 2, D = 1....
     
     
     Scanner scanner = new Scanner(System.in);
     
     
     System.out.println("Enter grade:");
     String grade = scanner.nextLine();
     
     Integer points = 0;
     Integer gradeValue = 0;
     if (grade.equalsIgnoreCase("A")) {
         gradeValue = 4;
     } else if (grade.equalsIgnoreCase("B")) {
         gradeValue = 3;
     } else if (grade.equalsIgnoreCase("C")) {
         gradeValue = 2;    
     } else if (grade.equalsIgnoreCase("D")) {
         gradeValue = 1;    
     } else if (grade.equalsIgnoreCase("F")) {
         gradeValue = 0;
     }  else {
          System.out.println("You didn't enter a valid grade :(");
     }  
     Integer points = gradeValue * Integer.parseInt(credits);
     
     Integer gpa = points / Integer.parseInt(credits);
     
     System.out.println("Credits: " + credits);
     System.out.println("Grades: " + grades);
     System.out.println("Points: " + points);
     System.out.println("GPA: " + gpa);
     
     scanner.close();
    }
 }