Store values in vector

Question

I have an exercise on vetores/arraywith simple value, where I must correct a test, comparing it with the feedback and also calculate the percentage of students who reached the average.

6) Make a program to correct multiple choice tests. Each test has eight questions and each question is worth one point. The first data set to be read is the proof template. The others are the student numbers and the answers they gave to the questions. There are ten enrolled students. Calculate and show:

a. The number and grade of each student;
b. The approval percentage knowing that the minimum grade is 6.

My feedback will be declared right at the beginning, ie I have an arrayinstanciada already with the "answers"

The teacher provided an image as she intended the exercise to run

My code at the moment is :

import java.util.Scanner;

public class ExercicioVetor6 {

    public static void main(String[] args) {
        // TODO Auto-generated method stub

       Scanner scan = new Scanner(System.in);

        int arrayAluno[] = new int[10];
        String[] gabarito = new String[] {"b", "d", "e", "a", "b", "c", "b", "a"};
        String resposta;
        int nota = 0;


        for (int i = 0; i < 10; i ++) {

            System.out.println("--- aluno " + (i+1) + " ---");

            for (int j = 0; j < 8; j++) {
                System.out.println("digite a resposta da " + (j+1) + " questão");
                resposta = scan.next();

                if (resposta.equals(gabarito[j]) ) {
                    nota++; 
                }
            }
            System.out.println("A nota do aluno " + (i+1) + " é : " + nota);
            nota = 0; 
        }

    }


    }

But by the teacher’s exercise she wants me to keep the answers of the students, then the program will ask the number of the desired student,compare the answers and finally I must provide the percentage of students with average of 6 up! When I run the code it repeats 10 times so I can type in the students' answers,!

But I believe something is missing, I don’t know what to do to look like the image!

Answer 1

A possible implementation with java8

    public class App {

        public static void main(String[] args) throws IOException {
            List<Aluno> alunos = new ArrayList<>();
            long numeroAluno = 11110L;

            for (int i = 0; i < 10; i++) {
                Aluno aluno = new Aluno();
                aluno.setNumero(numeroAluno++);
                aluno.responderQuestoesDaProva();

                alunos.add(aluno);
            }

            Gabarito gabarito = new Gabarito();
            gabarito.adicionarRespostasCorretas(Collections.nCopies(8, "A"));

            for (Aluno aluno : alunos) {
                aluno.corrigirProva(gabarito);

                System.out.println(aluno.getNumero() + " : " + aluno.getNota());
            }

            long totalDeAprovados = alunos.stream()
                    .filter((a) -> a.getNota() >= 3 ? true : false)
                    .count();

            System.out.println("Passou: " + totalDeAprovados + " " + (totalDeAprovados * 100 / alunos.size()));
        }

    }

Java tasting.:

    public class Prova {

        private List<String> questoes = new ArrayList<>();

        public void add(String questao) {
            questoes.add(questao);
        }

        public List<String> getQuestoes() {
            return Collections.unmodifiableList(questoes);
        }
    }

Java student.:

    public class Aluno {

        private Long numero;
        private Prova prova;
        private int nota;

        private List<String> respostasPossiveis = new ArrayList<String>() {        
            private static final long serialVersionUID = 1L;
            {
                add("A");
                add("B");
                add("C");
                add("D");
            }
        };

        public Long getNumero() {
            return numero;
        }

        public void setNumero(Long numero) {
            this.numero = numero;
        }

        public Prova getProva() {
            return prova;
        }

        public void setProva(Prova prova) {
            this.prova = prova;
        }

        public void setNota(int nota) {
            this.nota = nota;
        }

        public int getNota() {
            return nota;
        }

        public void verQuestoesRespondidas() {
            prova.getQuestoes().forEach((q) -> System.out.print(q));
        }

        public void responderQuestoesDaProva() {
            prova = new Prova();
            for(int i = 0; i < 8; i++) {
                Collections.shuffle(respostasPossiveis);

                prova.add(respostasPossiveis.stream()
                        .findFirst()
                        .get());
            }
        }

        public void corrigirProva(Gabarito gabarito) {
            List<String> respostasCorretas = gabarito.getRespostas();
            List<String> questoesRespondidas = prova.getQuestoes();

            for (int i = 0;i < respostasCorretas.size(); i++) {
                if(respostasCorretas.get(i).equals(questoesRespondidas.get(i))) nota++;
            }
        }

    }

Jig.:

    public class Gabarito {

        private List<String> respostas;

        public List<String> getRespostas() {
            return Collections.unmodifiableList(respostas);
        }

        public void adicionarRespostasCorretas(List<String> respostas) {
             this.respostas = respostas;

        }
    }