两个以相同数据开头的ArrayList

Question

Would you like to help me on the following:

Created 3 ArrayLists with defined values and an ArrayList that will receive the value of a select in the database. Then I want to compare the value of ArrayList called database with ArrayLists with defined values that I created.

Is giving error because the ArrayList called NIVELACESSOOper has only data: "Operacional" and ArrayList called NIVELACESSOOperFin has 2 data that are "Operacional" and "Financeiro" and when I try to run the ArrayList called NIVELACESSOOperFin is running the NIVELACESSOOper because both begin with the data "Operacional "... even I using .containsAll the comparison went wrong because it is comparing the first data and not the whole of the ArrayList called NIVELACESSOOperFin. Continues only comparing the first data.

I would love to have your support !!!

    List NIVELACESSOOper; {

    NIVELACESSOOper = new ArrayList();
    NIVELACESSOOper.add("Operacional");
}

List NIVELACESSOOperFin; {

    NIVELACESSOOperFin = new ArrayList();
    NIVELACESSOOperFin.add("Operacional");
    NIVELACESSOOperFin.add("Financeiro");
}

List NIVELACESSOAdmFinOper; {

    NIVELACESSOAdmFinOper = new ArrayList();
    NIVELACESSOAdmFinOper.add("Administrador");
    NIVELACESSOAdmFinOper.add("Financeiro");
    NIVELACESSOAdmFinOper.add("Operacional");
}


public void Logar() {

    List result = new ArrayList();

    String sql = "SELECT usuario_login, senha_login, nome_login, nivelAcesso FROM nivelAcessoSistema NATURAL JOIN login WHERE usuario_login = ? AND senha_login = ?";

    try {

        pst = con.prepareStatement(sql);

        pst.setString(1, txtUsuario.getText()); //Campo do usuário
        pst.setString(2, txtSenha.getText()); //Campo da senha

        rs = pst.executeQuery();

        if (rs.next()) { //Se existe registro no banco de dados com os dados informados na tela de login...

            String nivelAcesso = rs.getString("nivelAcesso"); //Comparando valor de atríbuto "nivelAcesso" do banco de dados

            result.add(nivelAcesso);

            if (result.containsAll(NIVELACESSOOper)) {

                JOptionPane.showMessageDialog(null, "Enter the screen Operacional");
            }

            else if(result.containsAll(NIVELACESSOOperFin)) {

                JOptionPane.showMessageDialog(null, "Enter the screen Operacional - Financeiro");
            }

            else if (result.containsAll(NIVELACESSOAdmFinOper)) {

                JOptionPane.showMessageDialog(null, "Enter the screen Operacional - Financeiro - Administrativo");
            }

Answer 1

It looks like you should change the order of your if statements to start with the largest list :

        if (result.containsAll(NIVELACESSOAdmFinOper)) {

            JOptionPane.showMessageDialog(null, "Enter the screen Operacional - Financeiro - Administrativo");
        }

        else if(result.containsAll(NIVELACESSOOperFin)) {

            JOptionPane.showMessageDialog(null, "Enter the screen Operacional - Financeiro");
        }

        else if (result.containsAll(NIVELACESSOOper)) {

            JOptionPane.showMessageDialog(null, "Enter the screen Operacional");
        }

That said, your result list can only contain a single element, so only result.containsAll(NIVELACESSOOper) can return true.

I'm not entirely sure what data you are reading from the DB, since the names are not in English, but if you expect multiple rows, you should change your code to :

    while (rs.next()) { //Se existe registro no banco de dados com os dados informados na tela de login...

        String nivelAcesso = rs.getString("nivelAcesso"); //Comparando valor de atríbuto "nivelAcesso" do banco de dados

        result.add(nivelAcesso);
    }

And only after processing all the rows, you check the result list.