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Consider the following statements about portlets:
I. Portlets can't contain anything from static HTML content to Java controls to complex web services and process-heavy applications.
II. Portlets are modular panes within a web browser that surface applications, information, and business processes.
III. Portlets can communicate with each other and take part in Java page flows that use events to determine a user’s path through an application.
IV. A single portlet can't have multiple instances − in other words, it can't appear on a variety of different pages within a single portal.
The correct statements are only
Considere o método a seguir, retirado de uma classe Java que utiliza JPA, implementada em condições ideais.
public List consultar(String n) {
x = Persistence.createEntityManagerFactory("conectarPU");
y = x.createEntityManager();
z = y.getTransaction();
z.begin ();
Query q = y.createQuery("SELECT f FROM Funcionario f WHERE f.nomefuncionario LIKE :nome");
q.set Parameter("nome", "%" + n + "%");
List lista = q.getResultList();
x.close();
return lista;
}
As variáveis x, y e z são, respectivamente, dos tipos
Considere o programa Java a seguir:
public class Teste {
public static void main(String[] args) {
int a, b, x, y;
a = 3;
b = -2;
x = -1;
y = 6;
x += b;
y /= a;
b - - ;
System.out.println(x);
System.out.println(y);
System.out.println(b);
}
}
Os valores exibidos serão, respectivamente,