exam

import java.util.Scanner;

public class exam {
    public static void main(String[] Args)
    {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter name : ");
        Basic.name = sc.nextLine();
        System.out.print("Enter Roll_no : ");
        Basic.roll_no = sc.nextInt();
        Advanced obj = new Advanced();
        Basic.Details();
        obj.ExamMarks();
        obj.AllRounds();
    }
}

class Basic{
    double percentage;
    static double total;
    static double full_marks;
    String label;
    static String name;
    static int roll_no;
    Scanner sc;
    Basic()
    {
        sc = new Scanner(System.in);
        full_marks = 100.0;
        total = 0.0;
    }

    private void Question()
    {
        System.out.print("\nWhat is 2+2? : ");
        if(4 == sc.nextInt())
            total += 20;
        System.out.print("\nWhat is 5*2? : ");
        if(10 == sc.nextInt())
            total += 20;

        System.out.print("\nWhat is 8*8? : ");
        if(64 == sc.nextInt())
            total += 20;


        System.out.print("\nWhat is 7*7? : ");
        if(49 == sc.nextInt())
            total += 20;
        System.out.print("\nWhat is 10*2? : ");
        if(20 == sc.nextInt())
            total += 20;
    }

    static void Details()
    {
        System.out.print("\n\nWelcome, " + name + ", Roll no : " + roll_no + "\n\n\tEXAM STARTS\n\n");
    }


    void ExamMarks()
    {
        label = "BASIC";
        System.out.println("\n\n<---" + label + "--->");
        Question();
        percentage = (total / full_marks) * 100.0;
        System.out.println(total + "/" + full_marks+"\tPercentage = " + percentage + "%");
    }

    boolean Qualified_for_Inter()
    {
        if(percentage >= 60.0)
            return true;
        return false;
    }

}

class Intermediate extends Basic{
    double percentage;
    static double total;
    static double full_marks;

    Intermediate()
    {
        super();
        total = 0.0;
        full_marks = 100.0;
    }

    private void Question()
    {
        System.out.print("\nWhat is 22+2? : ");
        if(24 == sc.nextInt())
            total += 20;
        System.out.print("\nWhat is 25*4? : ");
        if(100 == sc.nextInt())
            total += 20;

        System.out.print("\nWhat is 23*3? : ");
        if(69 == sc.nextInt())
            total += 20;

        System.out.print("\nWhat is 7*8? : ");
        if(56 == sc.nextInt())
            total += 20;
        System.out.print("\nWhat is 10*29? : ");
        if(290 == sc.nextInt())
            total += 20;
    }

    void ExamMarks()
    {
        super.ExamMarks();
        if(!Qualified_for_Inter())
        {
            System.out.println("Sorry, not qualified for Inter Round.");
            return;
        }

        System.out.println("Qualified for inter round!");
        label = "INTERMEDIATE";
        System.out.println("\n\n<---" + label + "--->");
        Question();

        percentage = (total / full_marks) * 100.0;
        System.out.println(total + "/" + full_marks+"\tPercentage = " + percentage + "%");
    }

    boolean Qualified_for_Advanced()
    {
        if(percentage >= 60.0)
            return true;
        return false;
    }
}

class Advanced extends Intermediate{

    double percentage;
    static double total;
    static double full_marks;

    Advanced()
    {
        super();
        full_marks = 100.0;

        total = 0.0;
    }

       private void Question()
    {
        System.out.print("\nWhat is 22+28? : ");
        if(50 == sc.nextInt())
            total += 20;
        System.out.print("\nWhat is 25*40? : ");
        if(1000 == sc.nextInt())
            total += 20;

        System.out.print("\nWhat is 69/3? : ");
        if(23 == sc.nextInt())
            total += 20;

        System.out.print("\nWhat is 9%8? : ");
        if(1 == sc.nextInt())
            total += 20;
        System.out.print("\nWhat is 250+602? : ");
        if(852 == sc.nextInt())
            total += 20;
    }

    void ExamMarks()
    {
        super.ExamMarks();
        if(!Qualified_for_Advanced())
        {
            System.out.println("Sorry, not qualified for Advanced Round.");
            return;
        }
        System.out.println("Qualified for Advanced round!");
        label = "ADVANCED";
        System.out.println("\n\n<---" + label + "--->");
        Question();
        percentage = (total / full_marks) * 100.0;
        System.out.println(total + "/" + full_marks+"\tPercentage = " + percentage + "%");
    }

    void AllRounds()
    {
        double all_total = 0.0, all_perc;
        if(Qualified_for_Advanced())
        {
            System.out.println("Advanced Round\tTotal Marks : "+total+"/"+full_marks+"\tPercentage : "+percentage+"%");
            System.out.println("Inter Round\tTotal Marks : "+Intermediate.total+"/"+Intermediate.full_marks+"\tPercentage : "+((Intermediate) this).percentage+"%");
            all_total = total + Intermediate.total;
        }
        else if(Qualified_for_Inter())
        {
            System.out.println("Inter Round\tTotal Marks : "+Intermediate.total+"/"+Intermediate.full_marks+"\tPercentage : "+((Intermediate) this).percentage+"%");
            all_total += Intermediate.total;
        }
        System.out.println("Basic Round\tTotal Marks : "+Basic.total+"/"+Basic.full_marks+"\tPercentage : "+((Basic) this).percentage+"%");
        all_total += Basic.total;
        all_perc = (all_total/300.0)*100;
         System.out.println("\nALL ROUND\tTotal Marks : "+all_total+"/"+"300.0"+"\tPercentage : "+all_perc+"%");

    }



}