The method invoked by this function must be statie.
The function class must implement the Function interface.
The expression is NOT a valid EL expression for invoking a function.
The function must be declared in a web.xml file using the
The function class must have a method with the signature:Void bloof (java.lang.Strings)
第1题:
Which of the following statements describe the use of the keyword
static?
a) Within the body of a function: A static variable maintains its value
between function revocations
b) Within a module: A static variable is accessible by all functions
within that module
c) Within a module: A static function can only be called by other
functions within that module
第2题:
The purpose of a programming system is to make a computer easy to use. To do this, it furnishes languages and various facilities that are in fact programs invoked and controlled by language features. But these facilities are bought at a price: the external description of a programming system is ten to twenty times as large as the external description of the computer system itself. The user finds it far easier to specify any particular function, but there are far more to choose from, and far more options and formats to remember. Ease of use is enhanced only if the time gained in functional specification exceeds the time lost in learning, remembering, and searching manuals. With modern programming systems this gain does exceed the cost, but in recent years the ratio of fain to cost seems to have fallen as more and more complex( )have been added. Because ease of use is the purpose, this radio of function to conceptual complexity is the ultimate test of system design. Neither function alone nor simplicity alone( )a good design. This point is widely misunderstood. Function, and not simplicity, has always been the measure of excellence for its designers. As soon as ease of use is held up as the criterion, each of these is seen to be( ), reaching for only half of the true goal. For a given level of function, however, that system is best in which one can specify things with the most simplicity and straightforwardness. ( )is not enough. Mooer’s TRAC language and Algol 68 achieve simplicity as measured by the number of distinct elementary concepts. They are not, however, straightforward. The expression of the things one wants to do often requires involuted (复杂的)and unexpected combinations of the basic facilities. It is not enough to learn the elements and rules of combination; one must also learn the idiomatic usage, a whole lore of how the elements are combined in practice. Simplicity and straightforwardness proceed from conceptual( ). Every part must reflect the same philosophies and the same balancing of desiderata. Every part must use the same techniques in syntax and the analogous notions in semantics. Ease of use, then, dictates unity of design, conceptual integrity.
A.systems B.functions C.programs D.manuals A.defines B.can be C.constructs D.costs A.stabilize B.equalized C.unbalanced D.balanced A.Function B.System C.Straightforwardness D.Simplicity A.integrity B.isolation C.durability D.consistency
第3题:
Given an EL function foo, in namespace func, that requires a long as a parameter and returns a Map, which two are valid invocations of function foo?()
第4题:
Given an EL function declared with:11.
第5题:
You want to create a filter for your web application and your filter will implement javax.servlet.Filter. Which two statements are true?()
第6题:
Evaluate the following function code: CREATE FUNCTION get_dept_avg(dept_id NUMBER) RETURN NUMBER RESULT_CACHE RELIES_ON (EMPLOYEES) IS avgsal NUMBER(6); BEGIN SELECT AVG(SALARY)INTO avgsal FROM EMPLOYEES WHERE DEPARTMENT_ID = dept_id; RETURN avgsal; END get_dept_avg; Which statement is true regarding the above function?()
第7题:
You are creating a Windows application for graphical image processing by using the .NET Framework 3.5. You create an image processing function and a delegate.You plan to invoke the image processing function by using the delegate.You need to ensure that the calling thread meets the following requirements: (1)It is not blocked when the delegate is running (2)It is notified when the delegate is complete What should you do?()
第8题:
The method invoked by this function must be statie.
The function class must implement the Function interface.
The expression is NOT a valid EL expression for invoking a function.
The function must be declared in a web.xml file using the
The function class must have a method with the signature:Void bloof (java.lang.Strings)
第9题:
The function method must have the signature: public String spin().
The method must be mapped to the logical name spin in the web.xml file.
The function method must have the signature: public String spinIt().
The function method must have the signature public static String spin().
The function method must have the signature: public static String spinIt().
The function class must be named Spinner, and must be in the package com.example.
第10题:
<%= Html.Action(ListEmployees, Model) %>
<%= Html.ActionLink(ListEmployees, Department, DepartmentController) %>
<% Html.RenderPartial(ListEmployees, Model) %>
<%= Html.DisplayForModel(ListEmployees) %>
第11题:
The cached result becomes invalid when any structural change is done to the EMPLOYEES table.
If the function execution results in an unhandled exception,the exception result is also stored in the cache.
Each time the function is invoked in a different session,the current result in the result cache gets overwritten.
If the function is invoked with a different parameter value,the existing result in the result cache gets overwritten by the latest value.
第12题:
Use the import function from the File menu.
Use the find function in the Edit menu.
Use the display binary data function in the View menu.
Navigate through the registry sub-trees.
第13题:
A. Use the import function from the File menu.
B. Use the find function in the Edit menu.
C. Use the display binary data function in the View menu.
D. Navigate through the registry sub-trees.
第14题:
第15题:
A developer wants too use EL to invoke a function using S{my:bloof(“foof”)}. Which is always true?()
第16题:
Which two statements are true about using the isUserInRole method to implement security in a Java EEapplication?()
第17题:
Which statement is true regarding the COALESCE function?()
第18题:
如果你想要自动加载类,下面哪种函数声明是正确的?()
第19题:
You are implementing an ASP.NET MVC 2 Web application that contains the following class. Public Class DepartmentControllerInherits Controller Shared departments As List(Of Department) = New List(Of Department) Function Index() As ActionResultReturn View(departments)End Function Function Details(ByVal id As Integer) As ActionResultReturn View(departments.Find(Function(x) x.ID = id))End Function Function ListEmployees(ByVal d As Department) As ActionResultDim employees As List(Of Employee) = GetEmployees(d)Return View (employees)End FunctionEnd Class You create a strongly typed view that displays details for a Department instance. You want the view to also include a listing of department employees. You need to write a code segment that will call the ListEmployees action method and output the results in place. Which code segment should you use?()
第20题:
Call the Invoke method of the delegate.
Call the BeginInvoke and EndInvoke methods of the delegate in the calling thread.
Call the BeginInvoke method by specifying a callback method to be executed when the delegate is complete.Call the EndInvoke method in the callback method.
Call the BeginInvoke method by specifying a callback method to be executed when the delegate is complete.Call the EndInvoke method of the delegate in the calling thread.
第21题:
It can have a maximum of five expressions in a list
It returns the highest NOT NULL value in the list for all rows
It requires that all expressions in the list must be of the same data type
It requires that at least one of the expressions in the list must have a NOT NULL value
第22题:
2,4,5
2,1,4,3,5
1,2,3,4,5
1,2,4,5
第23题:
${func(1)}
${foo:func(4)}
${func:foo(2)}
${foo(5):func}
${func:foo(easy)}
${func:foo(3).name}
第24题:
${func(1)}
${foo:func(4)}
${func:foo(2)}
${foo(5):func}
${func:foo(“easy”)}
${func:foo(“3”).name}