An object is()

题目

An object is()

  • A、what classes are instantiated from.
  • B、an instance of a class.
  • C、a blueprint for creating concrete realization of abstractions.
  • D、a reference to an attribute.
  • E、a variable.
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相似问题和答案

第1题:

__, the chairman will not give up what he has decided to do.

A、As you may object

B、Object as you may

C、Object though you may

D、Object if you may


参考答案:B

第2题:

以下程序的输出结果是_____。 include class object {private:int val; public:objec

以下程序的输出结果是_____。

include<iostream.h>

class object

{ private:

int val;

public:

object( ) ;

object(int i) ;

~object( ) ;};

object: :object( )

{ val=0;

cout < < "Default constructor for object" < < endl;}

object: :object(int i)

{ val=i;

cout < < "Constructor for object" < < val < < endl;}

object: :~object( )

{ cout < < "Destructor for object" < < val < < endl;}

class container{ private:

object one;

object two;

int data;

public:

container( ) ;

container(int i,int j,int k) ;

~container( ) ;};

container: :container( )

{ data=0;

cout < < "Default constructor for container" < < endl;}

container: :container(int i,int j,int k) :two(i) ,one(j)

{ data=k;

cout < < "Constructor for container" < < endl;}

container: :~container( )

{ cout < < "Destructor for container" < < endl;}

void main( )

{ container anObj(5,6,10) ;}


正确答案:Constructor for object6 Constructor for object5 Constructor for container Destructor for container Destructor for object5 Destructor for object6
Constructor for object6 Constructor for object5 Constructor for container Destructor for container Destructor for object5 Destructor for object6 解析:C++语言中的构造函数和析构函数分别是在声明对象时和对象调用完毕后调用,本题中的调用就是这样成对出现的。

第3题:

●Which of the following statements about object oriented database is not correct? (72) .

(72) A.Each object has a unique object identify in the system

B.Encapsulation and inheritance are two important features of object oriented database

C.A subclass can inherit the attributes and methods of all its superclasses

D.A supereloss includes the attributes and methods at all subclasses


正确答案:B
【解析】译文:下列关于面向对象数据库的描述中,哪一个是错误的?
B.封装和继承是面向对象数据库的两个重要特征。

第4题:

在j2ee中,以下是firevetoablechange方法的正确的原型的是() 

  • A、public void fireVetoableChange(Object  oldValue,Object newValue)
  • B、 public void fireVetoableChange(String  propertyName,Object newValue)
  • C、 public void fireVetoableChange(String  propertyName, Object  oldValue ,Object newValue)throws PropertyVetoException
  • D、 public void fireVetoableChange(String  propertyName, Object  oldValue ,Object newValue)

正确答案:C

第5题:

When an object receives a( ), methods contained within the object respond.

A.parameterB.informationC.messageD.data


正确答案:C

第6题:

YouneedtocreateatriggertolocatetheProductreportintheRpt_Server,runthereport,andtestthestatusofthereport.Whichthreebuilt-inswouldyouusetoaccomplishthistask?()

A.RUN_PRODUCT

B.SET_REPORT_OBJECT_PROPERTY

C.RUN_REPORT_OBJECT

D.FIND_REPORT_OBJECT

E.REPORT_OBJECT_STATUS

F.COPY_REPORT_OBJECT_OUTPUT


参考答案:C, D, E

第7题:

若定义cin>str; 当输入 Object Windows Programming ! 所得的结果是str()

A.Object Windows Programming!

B.Object

C.Object Windows

D.Object Windows Programming


正确答案:B

第8题:

Python中通过Key来从字典object中读取对应的Value的方法有()

A.object[key]

B.object.get(key)

C.object.pop(key)

D.object.pop()


正确答案:AB

第9题:

HTML中定义一个书签应使用的语句是()

  • A、<atarget=″#object-name″>text</a> 
  • B、<ahref=″#object-name″>text</a> 
  • C、<alink=″#object-name″>text</a> 
  • D、<aname=″#object—name″>text</a>

正确答案:D

第10题:

下列关于scala中的object描述正确的是()

  • A、object是scala的关键字
  • B、scala中的object和java中的object是一样的
  • C、object本身就是一个单例对象
  • D、scala中的object是一个伴生对象

正确答案:A,C,D

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