import java.util.Objects;
import java.util.Scanner;

public class Transcript {
    private final int PIN = 164892;

    // some random grades
    private int grade1;
    private int grade2;
    private int grade3;
    private int grade4;

    // some random personal infos
    private String persoInf1;
    private String persoInf2;
    private String persoInf3;
    private String persoInf4;

    public Transcript(String persoInf1, String persoInf2, String persoInf3, String persoInf4) {
        Objects.requireNonNull(persoInf1);
        Objects.requireNonNull(persoInf2);
        Objects.requireNonNull(persoInf3);
        Objects.requireNonNull(persoInf4);

        this.persoInf1 = persoInf1;
        this.persoInf2 = persoInf2;
        this.persoInf3 = persoInf3;
        this.persoInf4 = persoInf4;

    }

    // Getters
    public int getGrade1() {
        return grade1;
    }

    public int getGrade2() {
        return grade2;
    }

    public int getGrade3() {
        return grade3;
    }

    public int getGrade4() {
        return grade4;
    }

    // Setters
    public void setGrade1(int grade) {
        this.grade1 = grade;
    }

    public void setGrade2(int grade) {
        this.grade2 = grade;
    }

    public void setGrade3(int grade) {
        this.grade3 = grade;
    }

    public void setGrade4(int grade) {
        this.grade4 = grade;
    }

    public void printGrades() {
        // grade 1
        System.out.print("Grade 1: " + this.grade1 + " ");
        // no print if you enter something wrong
        if (grade1 < 101 && grade1 > 89) {
            System.out.println("A");
        } else if (grade1 < 90 && grade1 > 79) {
            System.out.println("B");
        } else if (grade1 < 80 && grade1 > 69) {
            System.out.println("C");
        } else if (grade1 < 70 && grade1 > 59) {
            System.out.println("D");
        } else if (grade1 < 60 && grade1 > 50) {
            System.out.println("E");
        } else if (grade1 < 50 && grade1 > 0) {
            System.out.println("F");
        }

        // grade 2
        System.out.print("Grade 2: " + this.grade2 + " ");
        // no print if you enter something wrong
        if (grade2 < 101 && grade2 > 89) {
            System.out.println("A");
        } else if (grade2 < 90 && grade2 > 79) {
            System.out.println("B");
        } else if (grade2 < 80 && grade2 > 69) {
            System.out.println("C");
        } else if (grade2 < 70 && grade2 > 59) {
            System.out.println("D");
        } else if (grade2 < 60 && grade2 > 50) {
            System.out.println("E");
        } else if (grade2 < 50 && grade2 > 0) {
            System.out.println("F");
        }

        // grade 3
        System.out.print("Grade 3: " + this.grade3 + " ");
        // no print if you enter something wrong
        if (grade3 < 101 && grade3 > 89) {
            System.out.println("A");
        } else if (grade3 < 90 && grade3 > 79) {
            System.out.println("B");
        } else if (grade3 < 80 && grade3 > 69) {
            System.out.println("C");
        } else if (grade3 < 70 && grade3 > 59) {
            System.out.println("D");
        } else if (grade3 < 60 && grade3 > 50) {
            System.out.println("E");
        } else if (grade3 < 50 && grade3 > 0) {
            System.out.println("F");
        }
        // grade 4
        System.out.print("Grade 4: " + this.grade4 + " ");
        // no print if you enter something wrong
        if (grade4 < 101 && grade4 > 89) {
            System.out.println("A");
        } else if (grade4 < 90 && grade4 > 79) {
            System.out.println("B");
        } else if (grade4 < 80 && grade4 > 69) {
            System.out.println("C");
        } else if (grade4 < 70 && grade4 > 59) {
            System.out.println("D");
        } else if (grade4 < 60 && grade4 > 50) {
            System.out.println("E");
        } else if (grade4 < 50 && grade4 > 0) {
            System.out.println("F");
        }
    }

    public void printPersonalInformations() {
        System.out.println("Personal informations:");
        System.out.println(persoInf1);
        System.out.println(persoInf2);
        System.out.println(persoInf3);
        System.out.println(persoInf4);
    }

    public void promptPIN() {
        Scanner sc = new Scanner(System.in); // don't close
        System.out.println("Enter pin");
        while (sc.nextInt() != PIN) {
            System.out.println("Wrong pin.");
        }
    }

    public void promptGrades() {
        Scanner sc = new Scanner(System.in);
        System.out.println("Course 1:");
        this.grade1 = sc.nextInt();
        System.out.println("Course 2:");
        this.grade2 = sc.nextInt();
        System.out.println("Course 3:");
        this.grade3 = sc.nextInt();
        System.out.println("Course 4:");
        this.grade4 = sc.nextInt();
        sc.close();
    }

    public static void main(String[] args) {
        Transcript t = new Transcript("OP", "worse", "than", "pajeet");
        t.promptPIN();
        t.printPersonalInformations();
        t.promptGrades();
        t.printGrades();
    }

}