What the output？（）
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What is the result？（）
A. The program runs and prints nothing.
B. The program runs and prints “Equal”.
C. An error at line 5 cause compilation to fail.
D. The program runs but aborts with an exception.
What is the result？（）
A. The program runs and prints “0”
B. The program runs and prints “1”
C. The program runs but aborts with an exception.
D. An error “possible undefined variable” at line 4 causes compilation to fail.
E. An error “possible undefined variable” at line 9 cause compilation to fail.
What is the result（）？
A. 2
B. 4
C. 8
D. 16
E. The code will not compile.
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；
Which two overload the setVar method()
A.A
B.B
C.C
D.D
E.E
A. An anonymous class can be declared as static.
B. A static inner class cannot be a static member of the outer class.
C. A static inner class does not require an instance of the enclosing class.
D. Instance member of a static inner class can be referenced using the class name of the staticinner class.
A. An inner class may be declared as static.
B. An anonymous inner class can be declared as public.
C. An anonymous inner class can be declared as private.
D. An anonymous inner class can extend an abstract class.
E. An anonymous inner class can be declared as protected.
A. The tag is invoked without a body.
B. The doTAb method throws an exception.
C. The
D. The tag is called with the attribute skip-body=true
A. GET
B. INFO
C. HEAD
D. TRACE
E. OPTIONS
Which statement inserted at line II， retrieves the text from the second text field？（）
A. second = request.getParameter （“foo”）：
B. second = request.getParameter （“foo”， 1）：
C. second = request.getParameter （“foo”，2）：
D. second = request.getParameter （foo”） [1]：
E. second = request.getParameter Values （“foo”） [1]：
最新试题
A web application uses the HttpSession mechanism to determine if a user is “logged in”. When a user supplies a valid user name and password， an HttpSession is created for that user. The user has access to the application for only 15 minutes after logging in. The code must determine how long the user has been logged in， and if this time is greater than 15 minutes， must destroy the HttpSession. Which method in HttpSession is used to accomplish this？（）
Which the two are characteristics of the Service Locator pattern？（）
A session-scoped attribute， product， is stored by a servlet. That servlet then forwards to a JSP page. This attribute holds an instance of the com.Company. Product class with a name property of “The Matrix” and price property of 39.95. Given the JSP page code snippet：What is the response output of this JSP page code snippet？ （）
A JSP page， current.jsp， is created to display the current weather report. The weather report is contained in a weather.html page that is rewritten every five minutes. Which line， appearing in current.jsp， ensures that the most recent version of weather.html is included whenever current.jsp is referenced？（）
The tag handler for n：recurse extends SimpleTagSupport.Assuming an n：recurse tag can either contain an empty body or another n：recurse tag， which strategy allows the tag handler for n：recurse to output the nesting depth of the deepest n：recurse tag？（）
Given a web application in which the request parameter product ID contains a product identifier.Which two EL expressions evaluate the value of the product ID？（）
For a given product instance， which three jsp：setProperty attributes must be used to initialized its properties form the HTML form？ （）
A custom JSP tag must be able to support an arbitrary number of attributes whose names are unknown when the tag class is designed. Which two are true？ （）
Which two classes or interfaces provide a getSession method？（）
Which code snippet， inserted at line 8， causes the value Company to be output？（）