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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？（）
A . ${product ID}
B . ${param.productID}
C . ${params.productID}
D . ${params.productID[1]}
E . ${paramvalues.productID}
F . ${paramValues.productID[0]}
G . ${pageContext.request.productID}
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Given： 10. class One { 11. void foo（） { } 12. } 13. class Two extends One { 14. //insert method here 15. } Which three methods， inserted individually at line 14， will correctly complete class Two？（）
A . public void foo（） { /* more code here */ }
B . private void foo（） { /* more code here */ }
C . protected void foo（） { /* more code here */ }
D . int foo（） { /* more code here */ }
E . void foo（） { /* more code here */ }
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https://assets.asklib.com/images/image2/201807311108379566.jpgWhich retrieves the value associated with “foo” from within an HttpServlet？（）
A . String value = getServletConfig（ ）.getParameter（“foo”）；
B . String value = getServletContext（ ）.getAttribute（“foo”）；
C . Object value = getServletContext（ ）.getInitParameter（“foo”）；
D . String value = getServletContext（ ）.getInitParameter（“foo”）
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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？（）
A . ${func（1）}
B . ${foo：func（4）}
C . ${func：foo（2）}
D . ${foo（5）：func}
E . ${func：foo（“easy”）}
F . ${func：foo（“3”）.name}
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Given： 1.<% int[] nums = {42，420，4200}； 2.request.setAttribute（"foo"， nums）； %> 3.${5 + 3 lt 6} 4.${requestScope[’foo’][0] ne 10 div 0} 5. ${10 div 0} What is the result？（）
A . True true
B . False true
C . False true 0
D . True true Infinity
E . False true Infinity
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Given the fully-qualified class names： com.foo.bar.Dog com.foo.bar.blatz.Book com.bar.Car com.bar.blatz.Sun Which graph represents the correct directory structure for a JAR file from which those classes can be used by the compiler and JYM？（）
A . Jar A
B . Jar B
C . Jar C
D . Jar D
E . Jar E
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Given： 6.<% int[] nums = {42， 420， 4200}； 7.request.setAttribute（"foo"， nums）； %> Which two successfully translate and result in a value of true？（）
A . ${true or false}
B . ${requestScope[foo][0] > 500}
C . ${requestScope[’foo’][1] = 420}
D . ${（requestScope[’foo’][0] lt 50） && （3 gt 2）}
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Which two are functions of an IP voice gateway?（）
A . provide far-end call control
B . provide far-end camera control
C . translate analog voice to packetized voice
D . transition call path between different networks
E . provide locations-based call admission control&e
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Given： 6.<myTag：foo bar=’42’> 7.<%="processing" %> 8.</myTag：foo> and a custom tag handler for foo which extends TagSupport. Which two are true about thetag handler referenced by foo？（）
A . The doStartTag method is called once.
B . The doAfterBody method is NOT called.
C . The EVAL_PAGE constant is a valid return value for the doEndTag method.
D . The SKIP_PAGE constant is a valid return value for the doStartTag method.
E . The EVAL_BODY_BUFFERED constant is a valid return value for the doStartTag method.
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Given： 8.int index = 1： 9.Boolean [] test = new boolcan [3]； 10.boolcan foo = test [index]； What is the result（）？
A . foo has the value of 0.
B . foo has the value of null.
C . foo has the value of true.
D . foo has the value of false.
E . An-exception is thrown.
F . The code will not compile.
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What is the function of an engine’s stationary parts?（）
A . To add power to the engine
B . To keep the engine firmly attached to its supporting base
C . To keep moving engine part in their proper relative positions
D . To rotate the crankshaft
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A developer wants too use EL to invoke a function using S{my：bloof（“foof”）}. Which is always true？（）
A . The method invoked by this function must be statie.
B . The function class must implement the Function interface.
C . The expression is NOT a valid EL expression for invoking a function.
D . The function must be declared in a web.xml file using the
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The primary function of an electric motor is to （）
A . develop torque
B . generate high voltages
C . produce a magnetic field
D . generate high electrical resistance
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Given： 1. public interface Foo { 2. int k = 4： 3. } Which three are equivalent to line 2？（）
A . final int k = 4：
B . public int k = 4：
C . static int k = 4：
D . private int k = 4：
E . abstract int k = 4：
F . volatile int k = 4：
G . transient int k = 4：
H . protected int k = 4：
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Given 1. public class Foo { 2. public static void main （String [] args） } 3. try { return；} 4. finally { Syste.out.printIn （“Finally”）；} 5. } 6. } What is the result()？
A . The program runs and prints nothing.
B . The program runs and prints “Finally”.
C . The code comiles. But an exception is thrown at runtime.
D . The code will not compile because the catch block is missing.
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Given the HttpServlet code： getServletContext（）.setAttribute（“foo”， “value”）； What is the result？（）
A . The attribute foo is placed in the application
B . A ServletContextListener registered for that servlet is notified
C . A ServletAttributeListener registered for that servlet is notified
D . An HttpSessionAttributeListener registered for that servlet is notified
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Given an EL function declared with：11. <function> 12.<name>spin</name> 13.<function-class>com.example.Spinner</function-class> 14.<function-signature> 15.java.lang.String spinIt（） 16.</function-signature> 17.</function> Which two are true？（）
A . The function method must have the signature： public String spin（）.
B . The method must be mapped to the logical name "spin" in the web.xml file.
C . The function method must have the signature： public String spinIt（）.
D . The function method must have the signature public static String spin（）.
E . The function method must have the signature： public static String spinIt（）.
F . The function class must be named Spinner， and must be in the package com.example.
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Given： 310-025 Leading the way in IT testing and certification tools， www.testking.com - 48 - public class foo { static String s； public static void main （Stringargs） { system.out.printIn （“s=” + s）； } } What is the result？（）
A . The code compiles and “s=” is printed.
B . The code compiles and “s=null” is printed.
C . The code does not compile because string s is not initialized.
D . The code does not compile because string s cannot be referenced.
E . The code compiles， but a NullPointerException is thrown when toString is called.
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To pass an array to a function, specify
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Given：1.＜%int[]nums={42，420，4200}；2.request.setAttribute（"foo"，nums）；%＞3.${5+3lt6}4.${requestScope[’foo’][0]ne10div0}5.${10div0}Whatistheresult？（）
A．Truetrue
B．Falsetrue
C．Falsetrue0
D．TruetrueInfinity
E．FalsetrueInfinity
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Given：6.＜myTag：foobar=’42’＞7.＜%="processing"%＞8.＜/myTag：foo＞andacustomtaghandlerforfoowhichextendsTagSupport.Whichtwoaretrueaboutthetaghandlerreferencedbyfoo？（）
A．ThedoStartTagmethodiscalledonce.
B．ThedoAfterBodymethodisNOTcalled.
C．TheEVAL_PAGEconstantisavalidreturnvalueforthedoEndTagmethod.
D．TheSKIP_PAGEconstantisavalidreturnvalueforthedoStartTagmethod.
E．TheEVAL_BODY_BUFFEREDconstantisavalidreturnvalueforthedoStartTagmethod.
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If an individual’s utility function is given by U（x,y）=xy, px = 2, py = 4, and income I = 200, please calculate his or her preferred consumption bundle（）
A．（x,y）=（50, 100）
B．（x,y）=（100,50）
C．（x,y）=（50,25）
D．（x,y）=（25,50）
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以下代码的运行结果是function foo（）{console.log（bar） // 结果let bar = 1;}foo
A．undefined
B．1
C．null
D．ReferenceError: bar is not defined
此题为多项选择题。
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以下代码中的输出结果是const promise1 = new Promise（function （resolve, reject） {setTimeout（function（）{resolve（'foo'）;}, 300）;}）;promise1.then（function（）{return 'bar';}）.then（function （value） {console.log（'hi,' + value）; // 输出结果}）
A．"hi,bar
B．"hi,foo
C．"hi,undefined
D．"hi
此题为多项选择题。
