SCDCD(310-081)多項(xiàng)選擇題每日一練(2020.04.13)

A. 3 / 2
B. 3 < 2
C. 3 * 4
D. 3 << 2
E. 3 * 22
F. 3 <<<2

A. public interface Person {}  Public class Employee extends Person {}
B. public interface Shape {}  public interface Rectangle extends Shape {}
C. public interface Color {}  public class Shape { private Color color； }
D. public class Species {}  public class Animal { private Species species； }
E. interface Component {} Class Container implements Component {private Component [] children；

A. A filter must implement the destroy method
B. A filter must implement the doFilter method
C. A servlet may have multiple filters associated with it
D. A servlet that is to have a filter applied to it must implement the javax.servlet.FilterChain  interface
E. A filter that is part of a filter chain passes control to the next filter in the chain by invoking the filterChain forward method
F. For each  element in the web application deployment descriptor， multiple instances of a filter may be created by the web container

A. The session object must be declared explicity.
B. The request and response objects are available implicity.
C. The output stream is available through the implicit outStream object.
D. The servlet context is available through the implicit servletContext object.
E. The JspContext for the tag file is available through the implicit jspContext object.

A.A
B.B
C.C
D.D
E.E