Tag: technology

Call System.gc()

Garbage collection cannot be forced.

Call System.gc(), passing in a reference to the object to be garbage-collected.

Call Runtime.gc()

Statement

PreparedStatement

ResultSet.

Callable Statement

get(1);

get(2);

get(“Chance”);

None of the above.

String [] strArr = [“element 1”, “element 2];

String [] strArr = {“element 1”, “element 2”};

String [] strArr = (“element 1”, “element2”);

String [] strArr = new String [“element 1” , “element 2”];

JSP, Servlets.

JSP, Servlets, EJBs

Applets, EJBs

No need to change it.

The EJB tier hosts the application-specific business objects.

The EJB tier does not host system-level services (such as transaction management, concurrency control and security); they are hosted on the EIS tier.

The EJB tier is a link between the web tier and the EIS integration tier.

The EJB tier hosts the entity beans and session beans, data access objects and value objects and perhaps master-detail modeling using enterprise beans.

getIdentity()

getCallerPrincipal()

getCallerIdentity()

getUserId()

Containers run within servers.

Servers run within containers.

Only one server can run in a container.

Only one container can run in a server.

Client Interface.

Business Logic.

Security

Data Storage.

The need for security is a classic example of a functional service level requirement and a checking account rile is an example of a non-functional requirement.

Security and the mandatory checking account both illustrate functional service level requirements.

Neither security nor the mandatory checking account is an example of any kind of requirement.

Security is an architectural non-functional requirement and the mandatory checking account a functional design requirement.