网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)

interface Beta {}  class Alpha implements Beta {  String testIt() {  return “Tested”;  }  }  public class Main1 {  static Beta getIt() {  return new Alpha();  }  public static void main( String[] args ) {  Beta b = getIt();  System.out.println( b.testIt() );  }  }  What is the result?()  

  • A、 Tested
  • B、 Compilation fails.
  • C、 The code runs with no output.
  • D、 An exception is thrown at runtime.

参考答案

更多 “ interface Beta {}  class Alpha implements Beta {  String testIt() {  return “Tested”;  }  }  public class Main1 {  static Beta getIt() {  return new Alpha();  }  public static void main( String[] args ) {  Beta b = getIt();  System.out.println( b.testIt() );  }  }  What is the result?()  A、 TestedB、 Compilation fails.C、 The code runs with no output.D、 An exception is thrown at runtime.” 相关考题
考题 14 Alpha buys goods from Beta. At 30 June 2005 Beta’s account in Alpha’s records showed $5,700 owing to Beta.Beta submitted a statement to Alpha as at the same date showing a balance due of $5,200.Which of the following could account fully for the difference?A Alpha has sent a cheque to Beta for $500 which has not yet been received by Beta.B The credit side of Beta’s account in Alpha’s records has been undercast by $500.C An invoice for $250 from Beta has been treated in Alpha’s records as if it had been a credit note.D Beta has issued a credit note for $500 to Alpha which Alpha has not yet received.

考题 Youarecreatinganonlinecatalogapplicationthat&ens YouarecreatinganonlinecatalogapplicationthatwilldisplayproductinformationonthecompanyWebsite.TheproductdataisstoredinaSQLServer2005database.ThedataisstoredasrelationaldatabutmustbepassedtotheapplicationasanXMLdocumentbyusingFORXML.YoutestyourapplicationandnoticethatnotalloftheitemsmatchingyourqueryappearintheXMLdocument.Onlythoseproductsthathavevaluesforallelementsintheschemaappear.YouneedtomodifyyourTransact-SQLstatementsothatallproductsmatchingyourqueryappearintheXMLdocument.Whatshouldyoudo?()

考题 如果类Alpha继承了类Beta,则类Alpha称为派生类,类Beta称为【 】类。

考题 简述Alpha测试与beta的区别。

考题 YouareaExamSheetInc.consultantwhousesa&ens YouareaExamSheetInc.consultantwhousesaWindows2000Professionalportablecomputer.YourdomainuseraccountisamemberofthelocalAdministratorgroup.Fromyourportablecomputer,youmapadrivetoasharedfoldernamedConsultMerticsonacomputernamedServer1.YouconfigureConsultMerticstobeavailableoffline.Whenyoulogoftheportablecomputer,youreceivethefollowingerrormessage.Youneedtosuccessfullysynchronizetheofflinefiles.Whatshouldyoudo?()

考题 Alloftheclientcomputersinyourcompany’s&ens Alloftheclientcomputersinyourcompany’snetworkareWindows2000portablecomputers.AusernamedMariastoresSalesfilesinherMyDocumentsfolder.Sheusesthesefileswhenshetravels.Mariainformsyouthatwhenshetakesherportablecomputertotradeshows,shecanaccesssomeoftheSalesfilesbutnotallofthem.Whenherportablecomputerisconnectedtothenetworkattheoffice,shecanaccessallofthefiles.YouneedtoenableMariatoaccessallofthefilesinherMyDocumentsfolderwhensheisworkingremotely.Whatshouldyoudo?()

考题 设有一共用体变量定义如下: union data { long w; float x; int y; char z;}; union data beta; 执行下列语句后,正确的共用体变量beta的值是( )。 beta.w=123456; beta.y=888; beta.x=3.1416; beta.z='x';A.123456B.888C.3.1416D.'X'

考题 Which command shows if an access list is assigned to an interface?() A. show ip interface [interface] access-listsB. show ip access-lists interface [interface]C. show ip interface [interface]D. show ip access-lists [interface]

考题 Whichcommandshowsif an accesslistisassignedtoaninterface?() A.show ip interface [interface] access-listsB.show ip access-lists interface [interface]C.show ip interface [interface]D.show ip access-lists [interface]

考题 已知符号定义语句如下: ALPHA EQU 100 BETA EQU 25 GAMMA EQU 2 分别求下列各表达式的值。 (1)ALPHA*4GTBETA (2)ALPHAMODGAMMA+BETA (3)(BETA/3)LE5 (4)ALPHAANDBETA (5)GAMMAXOR(BETAEQ25)

考题 Which command allows you to view interface usage details in real-time?()A、user@host debug interface interface-nameB、user@host monitor usage interface-nameC、user@host monitor interface interface-nameD、user@host traceoptions interface interface-name

考题 Alpha测试与beta的区别?

考题 投资的β(Beta)

考题 下列对Beta测试描述正确的是()A、Beta测试需要用户参加B、Beta测试也称之为独立测试

考题 如果ALPHA类继承自BETA类,则ALPHA类称为(),BETA 类称为()。A、基类;派生类B、密封类;基类C、派生类;基类

考题 Which command shows if an access list is assigned to an interface?()A、show ip interface [interface] access-listsB、show ip access-lists interface [interface]C、show ip interface [interface]D、show ip access-lists [interface]

考题 A resource group, MY_APP, has the following configuration: Resource Group NameMY_APP Participating Node Name(s)Alpha Beta GammaStartup Policy Online On Home Node Only Fallover Policy Fallover To Next Priority Node In The List Fallback Policy Fallback To Higher Priority Node InThe List MY_APP is currently running on node Beta. MY_APP is then moved to node Gamma using C-SPOC.Nodes Alpha and Beta are shutdown and restarted. Node Alpha stabilizes approx 60 seconds before nodeBeta. What happens to the resource group, MY_APP, when nodes Alpha and Beta are restarted?()A、It moves to BetaB、It stays on GammaC、It moves to AlphaD、It moves to Alpha, then to Beta

考题 10. interface Foo {}  11. class Alpha implements Foo {}  12. class Beta extends Alpha {}  13. class Delta extends Beta {  14. public static void main( String[] args) {  15. Beta x = new Beta();  16. // insert code here  17. }  18. }  Which code, inserted at line 16, will cause a java.lang.ClassCastException?() A、 Alpha a = x;B、 Foo f= (Delta)x;C、 Foo f= (Alpha)x;D、 Beta b = (Beta)(Alpha)x;

考题 定义alpha测试和beta测试的区别。

考题 单选题Which command allows you to view interface usage details in real-time?()A user@host debug interface interface-nameB user@host monitor usage interface-nameC user@host monitor interface interface-nameD user@host traceoptions interface interface-name

考题 单选题A resource group, MY_APP, has the following configuration: Resource Group NameMY_APP Participating Node Name(s)Alpha Beta GammaStartup Policy Online On Home Node Only Fallover Policy Fallover To Next Priority Node In The List Fallback Policy Fallback To Higher Priority Node InThe List MY_APP is currently running on node Beta. MY_APP is then moved to node Gamma using C-SPOC.Nodes Alpha and Beta are shutdown and restarted. Node Alpha stabilizes approx 60 seconds before nodeBeta. What happens to the resource group, MY_APP, when nodes Alpha and Beta are restarted?()A It moves to BetaB It stays on GammaC It moves to AlphaD It moves to Alpha, then to Beta

考题 单选题10. interface Foo {}  11. class Alpha implements Foo {}  12. class Beta extends Alpha {}  13. class Delta extends Beta {  14. public static void main( String[] args) {  15. Beta x = new Beta();  16. // insert code here  17. }  18. }  Which code, inserted at line 16, will cause a java.lang.ClassCastException?()A  Alpha a = x;B  Foo f= (Delta)x;C  Foo f= (Alpha)x;D  Beta b = (Beta)(Alpha)x;

考题 单选题interface Beta {}  class Alpha implements Beta {  String testIt() {  return “Tested”;  }  }  public class Main1 {  static Beta getIt() {  return new Alpha();  }  public static void main( String[] args ) {  Beta b = getIt();  System.out.println( b.testIt() );  }  }  What is the result?()A  TestedB  Compilation fails.C  The code runs with no output.D  An exception is thrown at runtime.

考题 单选题下列处方中常见的外文缩写,其含义是“立即”的是( )A Dos.B Sol.C St.D ss.E NS

考题 多选题10. class Foo {  11. static void alpha() { /* more code here */ }  12. void beta() { /* more code here */ }  13. }  Which two are true?()AFoo.beta() is a valid invocation of beta().BFoo.alpha() is a valid invocation of alpha().CMethod beta() can directly call method alpha().DMethod alpha() can directly call method beta().

考题 单选题Which code, inserted at line 16, will cause a java.lang.ClassCastException?()A Alpha a=x;B Foo f=(Delta)x;C Foo f=(Alpha)x;D Beta b=(Beta)(Alpha)x;

考题 单选题Given: Which code, inserted at line 16, will cause a java.lang.ClassCastException?()A Alpha a = x;B Foo f = (Delta)x;C Foo f = (Alpha)x;D Beta b = (Beta)(Alpha)x;