______is a property of object-oriented software by which an abstract operation may be performed in different ways in different classes．A．MethodB．PolymorphismC．InheritanceD．Encapsulation

题目

______is a property of object-oriented software by which an abstract operation may be performed in different ways in different classes．

A．Method

B．Polymorphism

C．Inheritance

D．Encapsulation

相似考题

1.（ ）iS a property of object—oriented software by which an abstract operation ma)’be performed in different ways in different classes． A．Method B．Polymorphism C．Inheritance D．Encapsulation

2.For which two functions is the Routing Engine responsible?()A.packet forwardingB.queuing functionsC.routing protocol controlD.JUNOS software operation

3.The task at hand now is to(56)the programmers who still use yesterday's software technology to solve today's software problems. Object-oriented programming requires a new attitude toward problem(57). Problem(57)with computer system becomes more natural. Application can(58)be translated into(59). Although it is commonly believed that it will be easier to train new programmers to use object-oriented techniques than to(60)programmers who have substantial experience in applying conventional programming language constructs.A．testB．forceC．educateD．touch

4.In the following statements about graph operations，which one is NOT correct?A．Finding critical path is an operation on directed graphB．Finding critical path is an operation on undirected graphC．Spanning tree of a graph may not be uniqueD．Minimum spanning tree of a graph may not be unique

参考答案和解析
正确答案：B
解析：多态是面向对象的特征之一，它提供了一个抽象操作，在不同的类中能够执行不同的方法。选项A是方法，选项B是多态，选项C是继承，选项D是封装。
更多“______is a property of object－oriented software by which an abstract operation may be perf ”相关问题

  • 第1题：

    Until security has been provided the Contractor shall have a maritime lien on ______ for his remuneration．

    A.the property lost

    B.the property salved

    C.the property involved in the accident which gave rise to the salvage operations

    D.any other property in danger which is not and has not been on board the vessel


    正确答案：B

  • 第2题：

    The operation of which aids to navigation may be suspended during war or national emergency ________．

    A.Navigational satellites

    B.Loran

    C.Omega

    D.Any of the above


    正确答案：D

  • 第3题：

    （ ） is a property of object-oriented software by which an abstract operation may be performed in different ways in different classes.

    A.MethoD.
    B.Polymorphism
    C.Inheritance
    D.Encapsulation

    答案：B
    解析：
    多态是面向对象的特征之一，它提供了一个抽象操作，在不同的类中能够执行不同的方法。A．方法 B．多态 C．继承 D．封装

  • 第4题：

    Which two statements are true？（）

    • A、 An inner class may be declared as static.
    • B、 An anonymous inner class can be declared as public.
    • C、 An anonymous inner class can be declared as private.
    • D、 An anonymous inner class can extend an abstract class.
    • E、 An anonymous inner class can be declared as protected.

    正确答案:A,D

  • 第5题：

    Which of the following are attributes of a hardware-based RAID controller？（）

    • A、Backs up data
    • B、Less expensive than software RAID
    • C、Vendor neutral implementation
    • D、Accessible through a BIOS interface
    • E、More host CPU usage than software RAID
    • F、Accessible through a system utility after the OS has been loaded
    • G、May retain data in the event of a power outage

    正确答案:D,F,G

  • 第6题：

    Which the following two statements are true？（）

    • A、 An inner class may be declared as static.
    • B、 An anonymous inner class can be declared as public.
    • C、 An anonymous inner class can be declared as private.
    • D、 An anonymous inner class can extend an abstract class.
    • E、 An anonymous inner class can be declared as protected.

    正确答案:A,D

  • 第7题：

    单选题
    （）is a property of object-oriented software by which an abstract operation may be performed in different ways in different classes.
    A

    Method

    B

    Polymorphism

    C

    Inheritance

    D

    Encapsulation


    正确答案： A
    解析： 该题的关键词为"an abstract operation、 performed in different ways in different classes"，其语句结构为"（）is a property of object-oriented software"，含义为"什么是面向对象软件的一个特性"，结合关键词分析，容易判断这是面向对象中的多态性概念(Polymorphism)。

  • 第8题：

    单选题
    The operation of which aids to navigation may be suspended during war or national emergency（）.
    A

    Navigational satellites

    B

    Loran

    C

    Omega

    D

    Any of the above


    正确答案： C
    解析： 暂无解析

  • 第9题：

    多选题
    For which two functions is the Routing Engine responsible?（）
    A

    packet forwarding

    B

    queuing functions

    C

    routing protocol control

    D

    JUNOS software operation


    正确答案： C,A
    解析： 暂无解析

  • 第10题：

    多选题
    Which two statements are true？（）
    A

    An inner class may be declared as static.

    B

    An anonymous inner class can be declared as public.

    C

    An anonymous inner class can be declared as private.

    D

    An anonymous inner class can extend an abstract class.

    E

    An anonymous inner class can be declared as protected.


    正确答案： D,B
    解析： 暂无解析

  • 第11题：

    单选题
    A Windows Communication Foundation (WCF) client uses the following service contract.(Line numbers are included for reference only.) 01 [ServiceContract] 02 public interface IService 03 { 04 [OperationContract] 05 string Operation1（　）; 06 [OperationContract] 07 string Operation2（　）; 08 } You need to ensure that all calls to Operation1 and Operation2 from the client are encrypted and signed. What should you do?（）
    A

    Set the ProtectionLevel property in line 01 to EncryptAndSign.

    B

    Set the ProtectionLevel property in line 04 and line 06 to Sign.

    C

    Add a SecurityCriticalAttribute ror each operation.

    D

    Add a SecunitySafeCriticalAttribute for each operation.


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    During the PSC inspection, under the provisions of SOLAS 74, which one may not be regarded as clear grounds for ships’ detainment?（）
    A

    failure of the proper operation of the main steering gear

    B

    failure of the proper operation of electrical installations

    C

    leakage of domestic water pump

    D

    insulation of exhaust pipes in engine room contaminated by oil


    正确答案： C
    解析： 暂无解析

  • 第13题：

    Which operation may cause the pressure in an inert tank to fall below the prescribed limits ________．

    A.Loading

    B.Discharging

    C.Crude oil washing

    D.Steaming tanks


    正确答案：B

  • 第14题：

    Software entities are more complex for
    their size than perhaps any other human construct, because no two parts are
    alike (at least above the statement level). If they are, we make the two
    similar parts into one, a（71 ）, open or closed. In this respect software systems differ
    profoundly from computers,buildings, or automobiles, where repeated elements
    abound.

    Digital computers are themselves more
    complex than most things people build; they have very large numbers of states.
    This makes conceiving, describing, and testing them hard. Software systems have
    orders of magnitude more （72 ）than computers do.

    Likewise, a scaling-up of a software entity
    is not merely a repetition of the same elements in larger size; it is necessarily an increase in
    the number of different elements. In most cases, the elements interact with
    each other in some（ 73 ）fashion,and
    the complexity of the whole increases much more than linearly.

    The complexity of software is a(an)（74 ）property, not
    an accidental one. Hence descriptions of a software entity that abstract away
    its complexity often abstract away its essence.Mathematics and the physical
    sciences made great strides for three centuries by constructing simplified
    models of complex phenomena, deriving properties from the models, and verifying
    those properties experimentally. This worked because the complexities（75 ）in the models
    were not the essential properties of the phenomena. It does not work when the
    complexities are the essence.

    Many of the classical problems of
    developing software products derive from this essential complexity and its nonlinear increases with
    size. Not only technical problems but management problems as well come from the complexity.

    A.states
    B.parts
    C.conditions
    D.expressions

    答案：A
    解析：

  • 第15题：

    LTE网管上Configuration有哪些功能应用（）

    • A、CM operation manager
    • B、Software Manager
    • C、CM editor
    • D、License Manager

    正确答案:A,B,C,D

  • 第16题：

    Which of the following statements concerning intellectual property is wrong？（）

    • A、Intellectual property is an intangible creation
    • B、Intellectual property in ludes patents，trademarks，copyrights，etc.
    • C、Intellectual property is a visible creation
    • D、There are some agreement sconcerning intellectual property under the WTO

    正确答案:C

  • 第17题：

    Which of the following options indicates why it is important to talk to the user and ask appropriate questions about a software problem? （）

    • A、Software problems don't generate errors. 
    • B、The user is more knowledgeable about software. 
    • C、The system logs will provide useful information alone. 
    • D、Key information pertaining to the software may be uncovered.

    正确答案:D

  • 第18题：

    单选题
    During the PSC inspection under the provision of SOLAS 74, which one may be regarded as clear grounds for ships’ detainment?（）
    A

    failure of proper operation of propulsion

    B

    paint peeling off the uptake

    C

    no operation procedures for the oil separators

    D

    damaged sanitary pump


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    Which of the following options indicates why it is important to talk to the user and ask appropriate questions about a software problem? （）
    A

    Software problems don't generate errors. 

    B

    The user is more knowledgeable about software. 

    C

    The system logs will provide useful information alone. 

    D

    Key information pertaining to the software may be uncovered.


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    During the PSC inspection, under the provisions of SOLAS 74, which one may not be regarded as clear grounds for ships’ detainment?（）
    A

    failure of the proper operation of emergency generator

    B

    insulation of piping including exhaust pipes in engine room contaminated by oil

    C

    improper operation of bilge of bilge of bilge pumping arrangements

    D

    damaged sanitary pump


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    Switchboards may be of the dead-front type in which all live parts are installed behind （） and only the operation handles and instruments are on the front.
    A

    the capstan

    B

    the collector

    C

    the panels

    D

    the surface


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    Which of the following statements concerning intellectual property is wrong？（）
    A

    Intellectual property is an intangible creation

    B

    Intellectual property in ludes patents，trademarks，copyrights，etc.

    C

    Intellectual property is a visible creation

    D

    There are some agreement sconcerning intellectual property under the WTO


    正确答案： C
    解析： 暂无解析

  • 第23题：

    单选题
    The Unified Modeling Language is a standard graphical language for modeling object-oriented software（）can show the behavior of systems in terms of how objects interact with each other.
    A

    Classdiagram

    B

    Componentdiagram

    C

    Sequencediagram

    D

    Use case diagram


    正确答案： C
    解析： 该题的关键词为"Unifled Modeling Language. behavior of systems、 objects interactwith each other"，其语句结构为"（）（主语）can show（谓语）the behavior of systems（宾语）in terms of how objects interact with each other"，含义为"什么可表示系统对象之间交互的行为"，结合选项分析，可知该题考察的知识点在于UML的不同视图之间的区别。根据UML视图定义，可知应该选择顺序图。

  • 第24题：

    单选题
    During the watch at sea, where situations occur in the machine apace which may affect the speed maneuverability, power supply or other essentials for the safe operation of the ship（）should be informed as soon as possible.
    A

    the chief engineer

    B

    the master

    C

    the bridge

    D

    the company superintendent


    正确答案： A
    解析： 暂无解析

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