labExam2

import java.util.Scanner;

public class Grades {

    public static void main(String args[]) {

        Scanner input = new Scanner(System.in);

        char[][] answers = {
            {'A', 'B', 'A', 'C', 'C', 'D' },
            {'D', 'B', 'A', 'B', 'C', 'A' },
            {'D', 'B', 'D', 'A', 'C', 'D' },
            {'C', 'B', 'A', 'E', 'D', 'C' }};

        char[] keys = {'D', 'B', 'D', 'C', 'C','D'};

        //******* Complete the code to count the number of correct answers for each
        //******* student and print them.
        for(int i=0;i<=answers.length-1;i++){
            int c = 0;
            for(int j=0;j<=answers[i].length-1;j++){
                if(answers[i][j]==keys[j]) c++;
            }
            System.out.printf("Student %d grade :%d%n",i,c);
        }
        int student, ans;
        System.out.print("Enter the student and question number: ");
        student = input.nextInt();
        ans = input.nextInt();

        //******* Complete the code to print the student’s answer for the given
        //******* question, and print whether it is correct or incorrect.
        if(answers[student][ans]==keys[ans])
            System.out.printf("The student answer was %s it is correct.",answers[student][ans]);
        else
            System.out.printf("The student answer was %s it is incorrect.",answers[student][ans]);
    }

}