Memorama game - Compare 2 buttons

I already have the position of the arrangement but I can not compare. As if it were a memorama I must press a button and show me the number and pressing another compare them and they are the same to disable them and if they are not to enable them and no longer show the number.

CLASS

class Memoria extends JButton {
    private int numero;

    public Memoria (int num){
        numero = num;

        setSize(80,80);
        setFont(new Font("Arial",Font.BOLD,34));
    }

    public int getNumero() {
        return numero;
    }
    public void setNumero(int numero) {
        this.numero = numero;
    }

    public void mostrarNumero() {
        setText(numero + "");
    }

    public void noMostrarNumero() {
        setText("");
    }
}

FRAME

public class PA_17130062_Frame_04 extends javax.swing.JFrame implements ActionListener {

    private Memoria memorama[] = new Memoria[20];
    private boolean primera = false;
    private boolean segunda = false;
    private JButton jbtn[] = new JButton[2];
    private int intentos;
    private JFileChooser jfch = new JFileChooser();

    public PA_17130062_Frame_04() {
        initComponents();
        inciar();
    }

    public int[] mezclar(int bar[]) {
        int m = bar.length - 1;
        for (int r = m; r > 1; r--) {
            int alea = (int) Math.floor(r * Math.random());
            int temp = bar[r];
            bar[r] = bar[alea];
            bar[alea] = temp;
        }
        return (bar);
    }

    public void inciar() {
        Random azar = new Random();
        int x = 30, y = 50;

        int arre[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

        mezclar(arre);

        for (int r = 0; r < memorama.length; r++) {
            memorama[r] = new Memoria(arre[r]);

            memorama[r].setLocation(x, y);

            x += 100;
            if ((r + 1) % 5 == 0) {
                y += 100;
                x = 30;
            }

            memorama[r].addActionListener(this);
            add(memorama[r]);

        }

        setSize(550, 550);

        intentos = 0;

        jLabIntento.setText(intentos + "");
    }
    @Override
    public void actionPerformed(ActionEvent ae) {

        Memoria btn1 = (Memoria) ae.getSource();
        Memoria btn2 = (Memoria) ae.getSource();

        if (!primera) {
            btn1.mostrarNumero();
            jbtn[0] = btn1;
            primera = true;
            segunda = false;
        } else {
            btn1.mostrarNumero();
            jbtn[1] = btn1;
            segunda = true;
        }

        int x1 = 0, x2 = 0, cont=0;//Variables para saber en que posicion estan los 2 números iguales
        int valor1 = Integer.parseInt(btn1.getActionCommand());
        int valor2 = 0;

        for (int r = 0; r < memorama.length; r++) {        

            if ( valor1 == memorama[r].getNumero() ) {
                if (cont == 0) {
                    x1 = r;
                    cont++;
                }


                x2 = r;
            }

        }


        for (int r = 0; r < memorama.length; r++) {
             if (primera && segunda) {
                if (memorama[r].getNumero() != memorama[x2].getNumero() ) {
                    jbtn[0].setEnabled(false);
                    jbtn[1].setEnabled(false);
                } 
                else{
                    jbtn[0].setEnabled(true);
                    jbtn[1].setEnabled(true);

                    jbtn[0].setText("");
                    jbtn[1].setText("");
                }
                primera = false;
            }
        }



        intentos++;
        jLabIntento.setText(intentos + " ");
        jLabprueba.setText(btn1.getActionCommand()+"        " + memorama[x1].getNumero()+"|x1="+x1+
                                              "     "+memorama[x2].getNumero()+"|x2="+x2);

    }