import java.util.Scanner;
   public class GradingSystem {

    private double QuizeOneGrade, QuizeTwoGrade, MidtermGrades;
    private double FinalExamGrade, GradePoints, getScore;
    private boolean active;
    Scanner sc = new Scanner(System.in);
    private void ScoreGrade(double getGrade){
    GradePoints = getGrade;

    if(GradePoints >= 90){
    System.out.println("A");
    }
    else if(GradePoints >= 80){
    System.out.println("B");
    }
    else if(GradePoints >= 70){
    System.out.println("C");
    }
    else if(GradePoints >= 60){
    System.out.println("D");
    }
    else{
    System.out.println("F");
    }
    }

    private void QuizOne(){
    active = true;
    System.out.println(" Enter quize one grade - Out of 10 - : ");
    QuizeOneGrade = sc.nextInt();
    do{
    if(QuizeOneGrade > 10){
   System.out.println(" The Grade should be <= 10 ");
   System.out.println(" Enter quize one grade - Out of 10 - : ");
   QuizeOneGrade = sc.nextInt();
    }
    else{
  active = false;
   }
     }
     while(active);

    getScore = (QuizeOneGrade / 10) * 100;
    System.out.println(" Final Grade for quize one is : ");
    ScoreGrade(getScore);
     System.out.println("");
     }

     private void QuizTwo(){
    active = true;
    System.out.println(" Enter quize two grade - Out of 10 - : ");
    QuizeTwoGrade = sc.nextInt();
   do{
   if(QuizeTwoGrade > 10){
   System.out.println(" The Grade should be <= 10 ");
   System.out.println(" Enter quize two grade - Out of 10 - : ");
   }else{
   active = false;
   }
    }while(active);

  getScore = (QuizeTwoGrade / 10) * 100;
  System.out.println(" Final Grade for quize two is :");
   ScoreGrade(getScore);
   System.out.println("");
   }

  private void MidTerm(){
  active = true;
  System.out.println(" Enter the Midterm grade - out of 100 - : ");
  MidtermGrades = sc.nextInt();
   do{
  if(MidtermGrades > 100){
  System.out.println(" The Grade should be <= 100 ");
  System.out.println(" Enter the Midterm grade - out of 100 - : ");
   }else{
  active = false;
  }
  }while(active);

 getScore = (MidtermGrades / 100) * 100;
 System.out.println(" Final grade for  the midterm : ");
 ScoreGrade(getScore);
 System.out.println("");
 }

  private void Final(){
  active = true;
  System.out.println(" Enter the Final Exam grade - out of 100 - : ");
  FinalExamGrade = sc.nextInt();
  do{
  if(FinalExamGrade > 100){
   System.out.println(" The Grade should be <= 100 ");
   System.out.println(" Enter the Final Exam grade - out of 100 - : ");
  }else{
  active = false;
  }
  }while(active);

  getScore = (FinalExamGrade / 100) * 100;
  System.out.println(" Final grade for  the final exam is: ");
  ScoreGrade(getScore);
  System.out.println("");
    }


   public void setScore(){
   QuizOne();
   QuizTwo();
   MidTerm();
   Final();

    double qFinal = (((QuizeOneGrade + QuizeTwoGrade) / 20) * 100) / 4;
    double mtFinal = ((MidtermGrades / 100) * 100) / 4;
    double fFinal = ((FinalExamGrade / 100) * 100) / 2;
    double finalScore = qFinal + mtFinal + fFinal;
    System.out.println(" Final grade for  the final is:");
     ScoreGrade(finalScore);
    }
    }