单选题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？（）A

题目
单选题
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？（）
A

 It is impossible to determine the deepest nesting depth because it is impossible for tag handlers that extend SimpleTagSupport to communicate with their parent and child tags

B

 Create a private non-static attribute in the tag handler class called count of type int initialized to      oIncrement count in the doTag method. If the tag has a body， invoke the fragment for that body. Otherwise， output the value of count

C

 Start a counter at 1. Call getChildTags（）. If it returns null， output the value of the counter.      Otherwise， increment counter and continue from where getChildTags（） is called. Skip      processing of the body.

D

 If the tag has a body， invoke the fragment for that body. Otherwise， start a counter at 1. Call      getParent（）. If it returns null， output the value of the counter. Otherwise， increment the counter      and continue from where getParent（） is called.

相似考题

1.阅读以下说明和C语言函数，将应填入(n)处的语句写在对应栏内。【说明】设串s和串t采用顺序存储结构，编写函数实现串s和串t的比较操作，要求比较结果包括大于、小于和等于3种情况。【函数】int StrCompare(SStrType s, SStrType t){int n=s.length, m=(1), i,j,tag;i=0; j=0;while((2)){if((3)){i++;j++;}else if(s.str[i]＞t.str[j]){tag=1;return tag;}else{tag=-1;return tag;}}if(n==m)tag=0;else if((4))tag=1;else if(n＜m)tag=-1;(5);}

2.The tag timeout value for a cisco wireless location appliance should be set to which tag beacon rate？（）A、4 to 6 times the tag beaconing rateB、10 to 12 times the tab beaconing rateC、8 to 10 times the tag beaconing rateD、6 to 8 times the tag beaconing rate

3. You are creating a content management system （CMS） with a web application front-end. The JSP thatdisplays a given document in the CMS has the following general structure： 1. <%-- tag declaration --%> 2.  ... 11. ...  ... ... 99.  The citation tag must store information in the document tag for the document tag to generate a referencesection at the end of the generated web page. The document tag handler follows the Classic tag model andthe citation tag handler follows the Simple tag model. Furthermore， the citation tag could also be embeddedin other custom tags that could have either the Classic or Simple tag handler model. Which tag handlermethod allows the citation tag to access the document tag？（）A、public void doTag（） {JspTag docTag = findAncestorWithClass（this， DocumentTag.class）； （（DocumentTag）docTag）.addCitation（this.docID）；}B、public void doStartTag（） {JspTag docTag = findAncestorWithClass（this， DocumentTag.class）； （（DocumentTag）docTag）.addCitation（this.docID）；}C、public void doTag（） {. Tag docTag = findAncestor（this， DocumentTag.class）； . （（DocumentTag）docTag）.addCitation（this.docID）；. }D、public void doStartTag（） {. Tag docTag = findAncestor（this， DocumentTag.class）； . （（DocumentTag）docTag）.addCitation（this.docID）；. }

4.The tag timeout value for a Cisco Wireless Location Appliance should be set to which tag beaconrate？（）A、4 to 6 times the tag beaconing rateB、10 to 12 times the tab beaconing rateC、8 to 10 times the tag beaconing rateD、6 to 8 times the tag beaconing rate

参考答案和解析
正确答案： B
解析： 暂无解析
更多“单选题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？（）A”相关问题

  • 第1题：

    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？ （）

    • A、 A  element in the echo tag LTD must have the value JSP
    • B、 The echo tag handler must define the setAttribute （String key， String value） method
    • C、 The true element must appear in the echo tag TLD
    • D、 The class implementing the echo tag handler must implement the javax.sevlet.jsp.tagext.IterationTag interface
    • E、 The class implementing the echo tag handler must implement the javax.sevlet.jsp.tagext.DynamicAttributes interface

    正确答案:C,E

  • 第2题：

    Which two statements are true about the security-related tags in a valid Java EE deployment descriptor？（）

    • A、Every  tag must have at least one  tag.
    • B、A  tag can have many  tags.
    • C、A given  tag can apply to only one  tag.
    • D、A given  tag can contain from zero to many  tags.
    • E、It is possible to construct a valid  tag such that，for a given resource，no user rolescan access that resource.

    正确答案:B,E

  • 第3题：

    Given the Tag：   Assuming the tag referenced by my Tags： get Advice uses the Classic event model，  which is true？（）

    • A、 The do After Body method is called.
    • B、 The doEnd Tag method is NOT called.
    • C、 The type attribute may be specified in the TLD
    • D、 The do Start Tag Method must always return SKIP_BODY.
    • E、 The TLD for this tag must NOT include a  tag.

    正确答案:C

  • 第4题：

    Which statement is true if the do Start Tag method returns EVAL_BODY_BUFFERED？（）

    • A、 The tag handler must extend body Tag.
    • B、 The do After Body method is NOT called.
    • C、 The set Body Content method is called.
    • D、 It is never legal to return EVAL_BODY_BUFFERED from do Start Tag.

    正确答案:C

  • 第5题：

    Which three are valid values for the body-content attribute of a tag directive in a tag file？（）

    • A、EL
    • B、JSP
    • C、Empty
    • D、Dynamic
    • E、Scriptless
    • F、Tagdependent

    正确答案:C,E,F

  • 第6题：

    Which the two are true about the JSTL core iteration custom tags？（）

    • A、 It may iterate over arrays， collections， maps and strings.
    • B、 The body of the tag may contain EL code， but not scripting code.
    • C、 When looping over collections， a loop status object may be used in the tag body.
    • D、 It may iterate over a map， but only the key of the mapping may be used in the tag body.
    • E、 When looping over integers （for example begin1=’1’ end=’10’）， a loop status object may not be used in the tag body.

    正确答案:A,C

  • 第7题：

    单选题
    Assume a tag handler extends TagSupport. Which is used within the tag handler to get an attribute “foo” that is in the application scope？（）
    A

     pageContext.getAttribute（“foo”）；

    B

     getPageContext（）.getAttribute（“foo”）；

    C

     pageContext.getApplicationScope（“foo”）；

    D

     pageContext.getAttribute（“foo”，pageContext.APPLICATION_SCOPE）.getAttribute（“foo”）；

    E

     getPageContext（）.getScope（pageContext.APPLICATION_SCOPE）.getAttribute（“foo”）；


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    Which statement is true if the do Start Tag method returns EVAL_BODY_BUFFERED？（）
    A

     The tag handler must extend body Tag.

    B

     The do After Body method is NOT called.

    C

     The set Body Content method is called.

    D

     It is never legal to return EVAL_BODY_BUFFERED from do Start Tag.


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    Given the Tag：   Assuming the tag referenced by my Tags： get Advice uses the Classic event model，  which is true？（）
    A

     The do After Body method is called.

    B

     The doEnd Tag method is NOT called.

    C

     The type attribute may be specified in the TLD

    D

     The do Start Tag Method must always return SKIP_BODY.

    E

     The TLD for this tag must NOT include a  tag.


    正确答案： E
    解析： 暂无解析

  • 第10题：

    单选题
    You are creating a content management system （CMS） with a web application front-end. The JSP thatdisplays a given document in the CMS has the following general structure： 1.  2.  ... 11. ...  ... ... 99.  The citation tag must store information in the document tag for the document tag to generate a referencesection at the end of the generated web page. The document tag handler follows the Classic tag model andthe citation tag handler follows the Simple tag model. Furthermore， the citation tag could also be embeddedin other custom tags that could have either the Classic or Simple tag handler model. Which tag handlermethod allows the citation tag to access the document tag？（）
    A

    public void doTag（） {JspTag docTag = findAncestorWithClass（this， DocumentTag.class）； （（DocumentTag）docTag）.addCitation（this.docID）；}

    B

    public void doStartTag（） {JspTag docTag = findAncestorWithClass（this， DocumentTag.class）； （（DocumentTag）docTag）.addCitation（this.docID）；}

    C

    public void doTag（） {. Tag docTag = findAncestor（this， DocumentTag.class）； . （（DocumentTag）docTag）.addCitation（this.docID）；. }

    D

    public void doStartTag（） {. Tag docTag = findAncestor（this， DocumentTag.class）； . （（DocumentTag）docTag）.addCitation（this.docID）；. }


    正确答案： A
    解析： 暂无解析

  • 第11题：

    多选题
    Under what two circumstances is the set JspBody method NOT called in a tag class that implements the Simple Tag interface？ （）
    A

    The tag is invoked without a body.

    B

    The doTAb method throws an exception.

    C

    The  element has the value empty.

    D

    The tag is called with the attribute skip-body=true


    正确答案： D,A
    解析： 暂无解析

  • 第12题：

    单选题
    Assume the tag handler for a st：simple tag extends Simple Tag Support. In what way can scriptlet code beused in the body of st：simple？（）
    A

    Set the body content type to JSP in the TLD

    B

    Scriptlet code is NOT legal in the body of st：simple.

    C

    Add scripting-enabled=true to the start tag for the st：simple element

    D

    Add a pass-through Classic tag with a body content type of JSP to the body of st：simple， and place the scriptlet code in the body of that tag


    正确答案： C
    解析： 暂无解析

  • 第13题：

    Assume a tag handler extends TagSupport. Which is used within the tag handler to get an attribute “foo” that is in the application scope？（）

    • A、 pageContext.getAttribute（“foo”）；
    • B、 getPageContext（）.getAttribute（“foo”）；
    • C、 pageContext.getApplicationScope（“foo”）；
    • D、 pageContext.getAttribute（“foo”，pageContext.APPLICATION_SCOPE）.getAttribute（“foo”）；
    • E、 getPageContext（）.getScope（pageContext.APPLICATION_SCOPE）.getAttribute（“foo”）；

    正确答案:D

  • 第14题：

    Assume the tag handler for a st：simple tag extends Simple Tag Support. In what way can scriptlet code beused in the body of st：simple？（）

    • A、Set the body content type to JSP in the TLD
    • B、Scriptlet code is NOT legal in the body of st：simple.
    • C、Add scripting-enabled="true" to the start tag for the st：simple element
    • D、Add a pass-through Classic tag with a body content type of JSP to the body of st：simple， and place the scriptlet code in the body of that tag

    正确答案:B

  • 第15题：

    Under what two circumstances is the set JspBody method NOT called in a tag class that implements the Simple Tag interface？ （）

    • A、 The tag is invoked without a body.
    • B、 The doTAb method throws an exception.
    • C、 The  element has the value empty.
    • D、 The tag is called with the attribute skip-body=true

    正确答案:A,C

  • 第16题：

    Assume the tag handler for a st：simpletag extends SimpleTagSupport. In what way can scriptlet code be used in the body of st：simple？（）

    • A、 Set the body content type to JSP in the TLD
    • B、 Scriptlet code is NOT legal in the body of st：simple
    • C、 Add scripting-enabled= “true” to the start tag for the st：simple element
    • D、 Add a pass-through Classic tag with a body content type of JSP to the body of st：simple， and      place the scriptlet code in the body of that tag.

    正确答案:B

  • 第17题：

    The sl：shoppingList and sl：item tags output a shopping list to the response and are used as follows： 11. 12. 13. 14. 15. The tag handler for sl：shoppingList is ShoppingListTag and the tag handler for sl：item is ItemSimpleTag.ShoppingListTag extends BodyTagSupport and ItemSimpleTag extends SimpleTagSupport.Which is true？（）

    • A、ItemSimpleTag can find the enclosing instance of ShoppingListTag by calling getParent（） and castingthe result to ShoppingListTag.
    • B、ShoppingListTag can find the child instances of ItemSimpleTag by calling super.getChildren（） andcasting each to an ItemSimpleTag.
    • C、It is impossible for ItemSimpleTag and ShoppingListTag to find each other in a tag hierarchy becauseone is a Simple tag and the other is a Classic tag.
    • D、ShoppingListTag can find the child instances of ItemSimpleTag by calling getChildren（） on thePageContext and casting each to an ItemSimpleTag.
    • E、ItemSimpleTag can find the enclosing instance of ShoppingListTag by calling findAncestorWithClass（）on the PageContext and casting the result to ShoppingListTag.

    正确答案:A

  • 第18题：

    单选题
    The sl：shoppingList and sl：item tags output a shopping list to the response and are used as follows： 11. 12. 13. 14. 15. The tag handler for sl：shoppingList is ShoppingListTag and the tag handler for sl：item is ItemSimpleTag.ShoppingListTag extends BodyTagSupport and ItemSimpleTag extends SimpleTagSupport.Which is true？（）
    A

    ItemSimpleTag can find the enclosing instance of ShoppingListTag by calling getParent（） and castingthe result to ShoppingListTag.

    B

    ShoppingListTag can find the child instances of ItemSimpleTag by calling super.getChildren（） andcasting each to an ItemSimpleTag.

    C

    It is impossible for ItemSimpleTag and ShoppingListTag to find each other in a tag hierarchy becauseone is a Simple tag and the other is a Classic tag.

    D

    ShoppingListTag can find the child instances of ItemSimpleTag by calling getChildren（） on thePageContext and casting each to an ItemSimpleTag.

    E

    ItemSimpleTag can find the enclosing instance of ShoppingListTag by calling findAncestorWithClass（）on the PageContext and casting the result to ShoppingListTag.


    正确答案： E
    解析： 暂无解析

  • 第19题：

    单选题
    Assume the tag handler for a st：simpletag extends SimpleTagSupport. In what way can scriptlet code be used in the body of st：simple？（）
    A

     Set the body content type to JSP in the TLD

    B

     Scriptlet code is NOT legal in the body of st：simple

    C

     Add scripting-enabled= “true” to the start tag for the st：simple element

    D

     Add a pass-through Classic tag with a body content type of JSP to the body of st：simple， and      place the scriptlet code in the body of that tag.


    正确答案： A
    解析： 暂无解析

  • 第20题：

    多选题
    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？ （）
    A

    A  element in the echo tag LTD must have the value JSP

    B

    The echo tag handler must define the setAttribute （String key， String value） method

    C

    The true element must appear in the echo tag TLD

    D

    The class implementing the echo tag handler must implement the javax.sevlet.jsp.tagext.IterationTag interface

    E

    The class implementing the echo tag handler must implement the javax.sevlet.jsp.tagext.DynamicAttributes interface


    正确答案： E,B
    解析： 暂无解析

  • 第21题：

    多选题
    Which three are valid values for the body-content attribute of a tag directive in a tag file？（）
    A

    EL

    B

    JSP

    C

    Empty

    D

    Dynamic

    E

    Scriptless

    F

    Tagdependent


    正确答案： E,A
    解析： 暂无解析

  • 第22题：

    多选题
    Which two are true about the tag handler referneed by my Tag. （）
    A

    The do Start Tag method is called once.

    B

    The do After Body method is NOT called.

    C

    The EVAL_Page constant is a valid return value for the do End Tag Method.

    D

    the EVAL_BODY_BUFFERED constant is a valid return value for the do Start Tag method.


    正确答案： D,B
    解析： 暂无解析

  • 第23题：

    单选题
    The sl：shoppingList and sl：item tags output a shopping list to the response and are used as follows： 11. 12. 13. 14. 15. The tag handler for sl：shoppingList is ShoppingListTag and the tag handler for sl：item is ItemSimpleTag.ShoppingListTag extends BodyTagSupport and ItemSimpleTag extends SimpleTagSupport.Which is true？（）
    A

    ItemSimpleTag can find the enclosing instance of ShoppingListTag by calling getParent（） and castingthe result to ShoppingListTag.

    B

    ShoppingListTag can find the child instances of ItemSimpleTag by calling super.getChildren（） andcasting each to an ItemSimpleTag.

    C

    It is impossible for ItemSimpleTag and ShoppingListTag to find each other in a tag hierarchy becauseone is a Simple tag and the other is a Classic tag.

    D

    ShoppingListTag can find the child instances of ItemSimpleTag by calling getChildren（） on thePageContext and casting each to an ItemSimpleTag.

    E

    ItemSimpleTag can find the enclosing instance of ShoppingListTag by calling findAncestorWithClass（）on the PageContext and casting the result to ShoppingListTag.


    正确答案： B
    解析： 暂无解析

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