Click the Exhibit button. Which three code fragments, added individually at line 29, produce the output 100?()A.n = 100;B.i.setX( 100 );C.o.getY().setX( 100 );D.i = new Inner(); i.setX( 100 );E.o.setY( i ); i = new Inner(); i.setX( 100 );F.i = new Inner()

题目
Click the Exhibit button. Which three code fragments, added individually at line 29, produce the output 100?()

A.n = 100;

B.i.setX( 100 );

C.o.getY().setX( 100 );

D.i = new Inner(); i.setX( 100 );

E.o.setY( i ); i = new Inner(); i.setX( 100 );

F.i = new Inner(); i.setX( 100 ); o.setY( i );

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更多“Click the Exhibit button. Which three code fragments, added individually at line 29, produce the output 100?() ”相关问题

  • 第1题：

    WhichactionoccurswhentheBGProute20.1.0.0/16isevaluatedbythepolicyexpression？（）[editpolicy-options]policy-statementreject_10{from{route-filter20.1.0.0/16orlongerM}then{communityadd90-1；accept}}policy-statementaccept_20{from{route-filter20.1.0.0/16orlongerM}then{communityadd100-1；reject；}}community100-1members100：1；community90-1members90：1[editprotocols]bgp{groupebgp-group{neighbor172.16.201.1{export（reject-10&&accept-20）；}}}

    A.Therouteisnotannounced.

    B.Therouteisannouncedwith90：1added.

    C.Therouteisannouncedwith100：1added.

    D.Therouteisannouncedwithcommunities90：1and100：1added.


    参考答案：A

  • 第2题：

    Exhibit:

    UPDATE EzonexamConsolidated

    SET District = ‘Mexico’

    WHERE RtvID = 45

    You work as database administrator at Ezonexam.com. You handle one SQL Server 2000 computer and one database.

    When users run the query in the exhibit above the receive the following error message:

    Server: Mrh3612, Level 16, Stats 1, Line 1

    View or function ‘EzonexamConsolidated’ is not updateable because it

    contains aggregates:

    How should you enable the query to run?

    A．Create a non-normalized EzonexamConsolidated table and populate the table with data from the base tables.

    B．The appropriate users should be granted UPDATE permissions on each base table.

    C．To enable updates on the composite tables create an INSTEAD OF trigger on the view.

    D．On each base table add a cascading update trigger.


    正确答案：C
    解析：Explanation:SQLServer2000usesINSTEADOFtriggersandpartitionedviewstoenhancetheclassofupdateableviews.INSTEADOFtriggerscanbecreatedonaviewinordertomakeaviewupdateable.TheINSTEADOFtriggerisexecutedinsteadofthedatamodificationstatementonwhichthetriggerisdefined.Thistriggerallowstheusertospecifythesetofactionsthatneedtotakeplaceinordertoprocessthedatamodificationstatement.Thus,ifanINSTEADOFtriggerexistsforaviewonagivendatamodificationstatement,thecorrespondingviewisupdateablethroughthatstatement.Iftheviewisapartitionedview,theviewisupdateable,subjecttocertainrestrictions.IncorrectAnswers:A:Creatingatablethatcombinesthecompositetablesthattheviewisbasedonwoulddenyustheabilitytousetheviewtoreturnaggregatedcolumnvalues.B:Theerrormessageisnotrelatedtopermissionsbuttotheupdateableofthetable.D:CascadingreferentialintegrityconstraintsmakesitpossibletodefinetheactionsSQLServer2000takeswhenauserattemptstodeleteorupdateakeytowhichexistingforeignkeyspoint.CascadingreferentialintegrityconstraintsfireAFTERtriggersafterallofthecascadingreferentialactionsdirectlycausedbytheoriginalDELETEorUPDATEareperformed.

  • 第3题：

    完成以下PL／SQL块,功能是:显示2 到50的25个偶数。 BEGIN FOR________ IN _________ LOOP DBMS_OUTPUT.PUT_LINE(even_number*2); END LOOP END;


    正确答案：even_number  1 .. 25  

  • 第4题：

    Which action occurs when the BGP route 20.1.0.0／16 is evaluated by the policy expression?()

    A. The route is not announced.

    B. The route is announced with community 90:1 added.

    C. The route is announced with community 100:1 added.C.The route is announced with community 100:1 added.

    D. The route is announced with communities 90:1 and 100:1 added.D.The route is announced with communities 90:1 and 100:1 added.


    参考答案：D

  • 第5题：

    在SQL*PLUS环境中,若想通过执行PL／SQL代码来显示指定的字符串,以下哪个方法可行()

    A.用SQL*PLUS环境支持的SHOW命令

    B.用DBMS_OUTPUT包的PUT_LINE过程

    C.用PRINT命令来输出指定的字符串

    D.用DISPLAY命令来输出指定的字符串

    E.用DBMS_OUTPUT包的NEW_LINE过程


    参考答案：B

  • 第6题：

    The relative pronoun "which" in the last paragraph (Line 6) refers to （　　）.

    A.experts
    B.periods
    C.theories
    D.issues

    答案：D
    解析：

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