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）
class BaseClass{ private float x= 1.0f； protected void setVar （float f） {x = f；} } class SubClass extends BaseClass { private float x = 2.0f； //insert code here } Which two are valid examples of method overriding？（）
- A、 Void setVar（float f） {x = f；}
- B、 Public void setVar（int f） {x = f；}
- C、 Public void setVar（float f） {x = f；}
- D、 Public double setVar（float f） {x = f；}
- E、 Public final void setVar（float f） {x = f；}
- F、 Protected float setVar（） {x=3.0f； return 3.0f； }
参考答案
更多 “ class BaseClass{ private float x= 1.0f； protected void setVar （float f） {x = f；} } class SubClass extends BaseClass { private float x = 2.0f； //insert code here } Which two are valid examples of method overriding？（） A、 Void setVar（float f） {x = f；}B、 Public void setVar（int f） {x = f；}C、 Public void setVar（float f） {x = f；}D、 Public double setVar（float f） {x = f；}E、 Public final void setVar（float f） {x = f；}F、 Protected float setVar（） {x=3.0f； return 3.0f； }” 相关考题
考题
使用VC6打开考生文件夹下的工程test10_1，此工程包含一个源程序文件test10_1.cpp，但该程序运行有问题，请改正程序中的错误，使程序的输出结果为；class Baseclass D1class D2class D3fin Base源程序文件test10_1.cpp清单如下：include＜iostream.h＞class Base{public:Base(){cout＜＜"class Base"＜＜endl;}void f(){cout＜＜"f in Base"＜＜endl;}};class D1:virtual public Base{public:D1(){cout＜＜"class D1"＜＜endl;}void f(){cout＜＜"f in D1"＜＜endl;}};／*********found**********／class D2:public Base{public:D2(){cout＜＜"class D2"＜＜endl;}／**********found**********／class D3::public D1，public D2{public:D3(){cout＜＜"class D3"＜＜endl;}};void main(){D3 d;／**********found************／d.f();}
考题
分析下列程序中类MyClass的定义class BaseClass{publicinti;}classMyClass:BaseClass//继承BaseClass{publicnewinti;}则下列语句在Console上的输出为_______.()MyClassy=newMyClass();BaseClassx=y;//父类指针x指向子类对象x.i=100;//操作父类i Console.WriteLine("{0},{1}"A、0,0B、100,100C、0,100D、100,0
考题
为完成下面的程序,应在划线处填入的语句是includeusingnamespace std;class Base{pri
为完成下面的程序，应在划线处填入的语句是 #include＜iostream＞ using namespace std； class Base { private： int x； public： Base (int i) { x=i； } ～Base(){} }； class Derived：public Base { public： ______________//完成类Derive构造函数的定义 }； int main() { Derived Obj； return 0； }A．Derived(int i)：Base(i){}B．Derived(){}C．void Derived (int i)：Base(i){}D．Derived(int i){Base(i)；}
考题
12 一个给定的数值由左边开始升位到右边第 N 位，如00101 == 0100或者0001 00114 == 0011 0000请用 C 或者 C++或者其他 X86 上能运行的程序实现。----------------------------------------------------------------------------------------------------------------附加题（只有在完成以上题目后，才获准回答）In C++, what does "explicit" mean? what does "protected" mean?explicitC++ SpecificThis keyword is a declaration specifier that can only be applied toin-class constructor declarations. Constructors declared explicit will notbe considered for implicit conversions. For example:class X {public:explicit X(int); //legalexplicit X(double) { //legal // ... }};explicit X::X(int) {} //illegalAn explicit constructor cannot take part in implicit conversions. It canonly be used to explicitly construct an object. For example, with the classdeclared above:void f(X) {}void g(int I){f(i); // will cause error}void h(){X x1(1); // legal}The function call f(i) fails because there is no available implicitconversion from int to X.Note It is meaningless to apply explicit to constructors with multiplearguments, since such constructors cannot take part in implicit conversions.END C++ SpecificprotectedC++ Specific —protected: [member-list]protected base-classWhen preceding a list of class members, the protected keyword specifiesthat those members are accessible only from member functions and friends ofthe class and its derived classes. This applies to all members declared upto the next access specifier or the end of the class.When preceding the name of a base class, the protected keyword specifiesthat the public and protected members of the base class are protectedmembers of the derived class.Default access of members in a class is private. Default access of membersin a structure or union is public.Default access of a base class is private for classes and public forstructures. Unions cannot have base classes.For related information, see public, private, friend, and Table of MemberAccess Privileges.END C++ SpecificExample// Example of the protected keywordclass BaseClass {protected: int protectFunc();};class DerivedClass : public BaseClass{ public:int useProtect() { protectFunc(); } // protectFunc accessible fromderived class};void main(){BaseClass aBase;DerivedClass aDerived;aBase.protectFunc(); // Error: protectFunc not accessibleaDerived.protectFunc(); // Error: protectFunc not accessible in derivedclass } How do you code an infinite loop in C?
考题
当你编译运行下列程序代码，会得到什么结果?private class Base{ Base(){ int i = 100; System.out.println(i); } }public class Pri extends Base{ staticint i = 200;public static void main(String argv[]){ Pri p = new Pri(); System.out.println(i); } }A.这段代码不能通过编译B.输出200C.输出100和200D.输出100
考题
以下程序调试结果为:class Base{Base(){int i = 100;System.out.print (i);}}public class Pri extends Base{static int i = 200;public static void main(String argv[]){Pri p = new Pri();System.out.print(i);}}
A.编译错误B.200C.100200D.100
考题
ThenetworkadministratorisaddinganewN1KvtothevCenter，however，theadministratordoesnotseethenewswitchunderthenetworkingtabofvCenter.TheadministratorissuesthefollowingcommandontheVSMtotroubleshoot：VSM#showsvsconnectionsconnectionVC：ipaddress：10.10.10.30remoteport：80protocol：vmware-vimhttpscertificatE.defaultdatacenternamE.DC1DVSuuiD.67323050a6d24964-9e1c5f49e3af5599configstatus：Disabledoperationalstatus：Disconnectedsyncstatus：-version：-Whenattemptingtofixtheissue，thefollowingerrorisseen：VSM-PRI-188#confVSM-PRI-188（config）#svsconnectionVCVSM-PRI-188（config-svs-conn）#connectERROR：[VMWARE-VIM]ExtensionkeywasnotregisteredbeforeitsuseWhatisthecauseoftheerror？（）
考题
指标库可以从企业组织层级的角度建立，比如()。A.第一部分为企业层面的KPI和NNI
B.第二层面为各部门KPI、PRI以及NNI
C.第三层面为班组的KPI、PRI以及NNI
D.第三层面为班组的KPI、PRI以及NNI、WAI
E.第四层面为各岗位员工的KPI、PRI、PCI、和NNI
考题
TN承载业务QOS规划VLAN PRI正确的是（）A、语音VLAN PRI值：5B、网管VLAN PRI值：7C、实时游戏，高速上网VLAN PRI值：4D、视频在线流媒体VLAN PRI值：2
考题
To provide quality of service （QoS） for voice traffic in an IEEE 802.1 q network， which class of service （CoS） value should be used in the 3-bit， user priority bits （PRI） field？ （）A、The PRI field should contain the Cos value of 010B、The PRI field should contain the Cos value of 011C、The PRI field should contain the Cos value of 100D、The PRI field should contain the Cos value of 101E、The PRI field should contain the Cos value of 110F、The PRI field should contain the CoS value of 111
考题
V2060-B大容量有一块DTU板，支持PRI信令，则这块DTU（）.A、只能开通PRI信令B、不支持一号信令C、可同时开通PRI信令和一号信令。D、开通一号信令时不需要配IP地址，接网线
考题
应急浮筒用的是哪个汇流条的电（）A、DC ESS BUS 和 NO.1 DC PRI BUSB、NO.1 DC PRI BUS 和 NO.2 DC PRI BUSC、NO.2 DC PRI BUS 和 DC ESS BUSD、DC ESS BUS 和NO.1 DC PRI BUS 和 NO.2 DC PRI BUS
考题
多选题TN承载业务QOS规划VLAN PRI正确的是（）A语音VLAN PRI值：5B网管VLAN PRI值：7C实时游戏，高速上网VLAN PRI值：4D视频在线流媒体VLAN PRI值：2
考题
单选题To provide quality of service （QoS） for voice traffic in an IEEE 802.1 q network， which class of service （CoS） value should be used in the 3-bit， user priority bits （PRI） field？ （）A
The PRI field should contain the Cos value of 010B
The PRI field should contain the Cos value of 011C
The PRI field should contain the Cos value of 100D
The PRI field should contain the Cos value of 101E
The PRI field should contain the Cos value of 110F
The PRI field should contain the CoS value of 111
考题
多选题class BaseClass{ private float x= 1.0f； protected void setVar （float f） {x = f；} } class SubClass extends BaseClass { private float x = 2.0f； //insert code here } Which two are valid examples of method overriding？（）AVoid setVar（float f） {x = f；}BPublic void setVar（int f） {x = f；}CPublic void setVar（float f） {x = f；}DPublic double setVar（float f） {x = f；}EPublic final void setVar（float f） {x = f；}FProtected float setVar（） {x=3.0f； return 3.0f； }
考题
多选题1. class BaseClass { 2. private float x = 1.of； 3. protected float getVar（） { return x； } 4. } 5. class SubClass extends BaseClass { 6. private float x = 2.Of； 7. // insert code here 8. } Which two are valid examples of method overriding when inserted at line 7？（）Afloat getVar（） { return x； }Bpublic float getVar（） { return x； }Cpublic double getVar（） { return x； }Dprotected float getVar（） { return x； }Epublic float getVar（float f） { return f； }
考题
多选题class BaseClass{ private float x= 1.0f； protected void setVar （float f） {x = f；} } class SubClass exyends BaseClass { private float x = 2.0f； //insert code here 8. } Which two are valid examples of method overriding？（）AVoid setVar（float f） {x = f；}BPublic void setVar（int f） {x = f；}CPublic void setVar（float f） {x = f；}DPublic double setVar（float f） {x = f；}EPublic final void setVar（float f） {x = f；}FProtected float setVar（） {x=3.0f； return 3.0f； }
热门标签
最新试卷
