在C#中，假设Person是一个类，而ITeller是一个接口，下面的（）类声明是正确的。A、class Employee：Person，ITeller B、class Employee：ITeller，PersonC、class Employee-Person，ITellerD、class Employee：Person / ITeller
在C#中，假设Person是一个类，而ITeller是一个接口，下面的（）类声明是正确的。
- A、class Employee：Person，ITeller
- B、class Employee：ITeller，Person
- C、class Employee-Person，ITeller
- D、class Employee：Person / ITeller
相关考题：
（ 30 ）下列代码声明了 3 个类class Person{};class Student:public Person{};class Undergraduate:Student{};下列关于这些类之间关系的描述中，错误的是A ）类 Person 是类 Undergraduate 的基类B ）类 Undergraduate 从类 Student 公有继承C ）类 Student 是类 Person 的派生类D ）类 Undergraduate 是类 Person 的派生类
下列代码段声明了3个类：class Person()；class Student：public Person{};class Undergraduate：Student{}；下列关于这些类之间关系的描述中，错误的是( )。A．类Person是类Undergraduate的基类B．类Undergraduate从类Student公有继承C．类Student是类Person的派生类D．类Undergraduate是类Person的派生类
在C#中,假设Class1是一个类,而IExample是一个接口,下面的()类声明是正确的。A、class Employee:Class1,IExampleB、class Employee:IExample,Class1C、classEmployee-Class1,IExampleD、classEmployee:Class1/Iexample
下列代码段中声明了3个类： Class Person{}； Class Student：publiC Person{}； Class Undergraduate：Student{}； 下列关于这些类之间关系的描述中，错误的是( )。A.类Person是类Undergraduate的基类B.类Undergraduate从类Student公有继承C.类Student是类Person的派生类D.类Undergraduate是类Person的派生类
创建一个名为student的新类，保存新类的类库名称是mylib，新类的父类是Person，正确的命令是A．CREATE CLASS mylib OF student As PemonB．CREATE CLASS student OF Pe~on As mylibC．CREATE CLASS student 0F mylib As Pe~onD．CREATE CLASS Person OF mylib As student
创建一个名为student的新类，保存新类的类库名称是mylib，新类的父类名是Person，正确的命令是（ ）。A.CREATE CLASS mylib OF student AS PcrsonB.CREATE CLASS student OF Person AS mylibC.CREATE CLASS student OF mylib AS PersonD.CREATE CLASS Person OF mylib AS student
已知类的继承关系如下:class Employee;class Manager extends Employeer;class Director extends Employee;则以下语句能通过编译的有哪些? A.Employee e=new Manager();B.Director d=new Manager();C.Director d=new Employee();D.Manager m=new Director();
设有下列两个类的定义，则类Person和类Man的关系是( )。 class Person{ long id; //身份证号 Stringname;//姓名 } class Man extends Person{ int age;//年龄 int getScore(){ return score; } }A．包含关系B．继承关系C．关联关系D．无关系，上述类定义有语法错误
设有下面两个类的定义： class Person{ long id；// 身份证号 String name：//姓名 } class Student extends Person{ int score：//成绩 int getScore( ){ return score； } } 则类Person和类Student的关系是( )。A．包含关系B．继承关系C．关联关系D．无关系
Which three demonstrate an “is a” relationship？（） A、 public class X { } public class Y extends X { }B、 public interface Shape { } public interface Rectangle extends Shape{ }C、 public interface Color { } public class Shape { private Color color； }D、 public interface Species { } public class Animal { private Species species； }E、 public class Person { } public class Employee { public Employee（Person person） { }F、 interface Component { } class Container implements Component { private Component[] children； }
interface Data { public void load（）； } abstract class Info { public abstract void load（）； } Which class correctly uses the Data interface and Info class？（） A、 public class Employee extends Info implements Data { public void load（） { /*do something*/ } }B、 public class Employee implements Info extends Data { public void load（） { /*do something*/ } }C、 public class Employee extends Info implements Data { public void load（） { /*do something */ } public void Info.load（） { /*do something*/ } }D、 public class Employee implements Info extends Data { public void Data.load（） { /*dsomething */ } public void load（） { /*do something */ } }E、 public class Employee implements Info extends Data { public void load（） { /*do something */ } public void Info.load（）{ /*do something*/ } }F、 public class Employee extends Info implements Data{ public void Data.load（） { /*do something*/ } public void Info.load（） { /*do something*/ } }
定义一个类名为"MyClass.java"的类，并且该类可被一个工程中的所有类访问，那么该类的正确声明应为（）。A、private class My Class extends ObjectB、class My Class extends ObjectC、public class My ClassD、public class My Class extends Object
在Person的一个派生类Employee里调用Person类的构造函数正确方式为（）。A、base.Person（name，age）B、base（name，age）C、Person（name，age）D、this（name，age）
现有： interface Data {public void load（）；} abstract class Info {public abstract void load（）；} 下列类定义中正确使用Data和Info的是哪项？（） A、 public class Employee implements Info extends Data { public void load（）{／*dosomething*／} }B、public class Employee extends Inf.implements Data{ public void load（） {／*do something*／} }C、public class Empl.yee implements Inf extends Data{ public void Data.1oad（）{* do something*／} public void load（）{／*do something*／} }D、public class Employee extends Inf implements Data { public void Data.1oad（） {／*do something*／） public void info.1oad（）{/*do something*/} }
Which the two demonstrate an “is a” relationship？（）A、 public interface Person {} Public class Employee extends Person {}B、 public interface Shape {} public interface Rectangle extends Shape {}C、 public interface Color {} public class Shape { private Color color； }D、 public class Species {} public class Animal { private Species species； }E、 interface Component {} Class Container implements Component {private Component [] children；
Which two demonstrate an “is a” relationship？（） A、 public interface Person { } public class Employee extends Person { }B、 public interface Shape { } public class Employee extends Shape { }C、 public interface Color { } public class Employee extends Color { }D、 public class Species { } public class Animal （private Species species；）E、 interface Component { } Class Container implements Component （ Private Component[ ]children； ）
11. class Person { 12. String name = “No name‟； 13. public Person（String nm） { name = nm； } 14. } 15. 16. class Employee extends Person { 17. String emplD = “0000”； 18. public Employee（String id） { empID = id； } 19. } 20. 21. public class EmployeeTest { 22. public static void main（String[] args） { 23. Employee e = new Employee（”4321”）； 24. System.out.println（e.empID）； 25. } 26. } What is the result？（） A、 4321B、 0000C、 An exception is thrown at runtime.D、 Compilation fails because of an error in line 18.
You are developing a Windows Communication Foundation (WCF) service that contains the following service contract.[ServiceContract（ ）]public interface IPaymentService{ [OperationContract（ ）] void RecordPayments(Person person);}public class Person{ ... }public class Employee : Person{ ... }public class Customer : Person{ ... }You need to ensure that RecordPayments can correctly deserialize into an Employee or a Customer object. What should you do?（）A、Add the following KnownType attribute to the Employee class and to the Customer class. [KnownType(GetType(Person))]B、Implement the IExtensibleDataObject interface in the Person class.C、Implement the IExtension(ofType(T)) interface in the Person class.D、Add the following KnownType attributes to the Person class. [KnownType(GetType(Employee))] [KnownType(GetType(Customer))]
多选题Which two demonstrate an “is a” relationship？（）Apublic interface Person { } public class Employee extends Person { }Bpublic interface Shape { } public class Employee extends Shape { }Cpublic interface Color { } public class Employee extends Color { }Dpublic class Species { } public class Animal （private Species species；）Einterface Component { } Class Container implements Component （ Private Component[ ]children； ）
单选题创建一个名为student的新类，保存新类的类库名称是mylib，新类的父类是Person，正确的命令是（ ）。ACREATE CLASS mylib OF student As PersonBCREATE CLASS student OF Person As mylibCCREATE CLASS student OF mylib As PersonDCREATE CLASS Person OF mylib As student
单选题在Person的一个派生类Employee里调用Person类的构造函数正确方式为（）。Abase.Person（name，age）Bbase（name，age）CPerson（name，age）Dthis（name，age）
单选题You are developing a Windows Communication Foundation (WCF) service that contains the following service contract.[ServiceContract（ ）]public interface IPaymentService{ [OperationContract（ ）] void RecordPayments(Person person);}public class Person{ ... }public class Employee : Person{ ... }public class Customer : Person{ ... }You need to ensure that RecordPayments can correctly deserialize into an Employee or a Customer object. What should you do?（）AAdd the following KnownType attribute to the Employee class and to the Customer class. [KnownType(GetType(Person))]BImplement the IExtensibleDataObject interface in the Person class.CImplement the IExtension(ofType(T)) interface in the Person class.DAdd the following KnownType attributes to the Person class. [KnownType(GetType(Employee))] [KnownType(GetType(Customer))]
多选题Which the two demonstrate an “is a” relationship？（）Apublic interface Person {} Public class Employee extends Person {}Bpublic interface Shape {} public interface Rectangle extends Shape {}Cpublic interface Color {} public class Shape { private Color color； }Dpublic class Species {} public class Animal { private Species species； }Einterface Component {} Class Container implements Component {private Component [] children；
单选题在C#中，假设Person是一个类，而ITeller是一个接口，下面的（）类声明是正确的。Aclass Employee：Person，ITeller Bclass Employee：ITeller，PersonCclass Employee-Person，ITellerDclass Employee：Person / ITeller
多选题Which three demonstrate an “is a” relationship？（）Apublic class X { } public class Y extends X { }Bpublic interface Shape { } public interface Rectangle extends Shape{ }Cpublic interface Color { } public class Shape { private Color color； }Dpublic interface Species { } public class Animal { private Species species； }Epublic class Person { } public class Employee { public Employee（Person person） { }Finterface Component { } class Container implements Component { private Component[] children； }
单选题interface Data { public void load（）； } abstract class Info { public abstract void load（）； } Which class correctly uses the Data interface and Info class？（）A public class Employee extends Info implements Data { public void load（） { /*do something*/ } }B public class Employee implements Info extends Data { public void load（） { /*do something*/ } }C public class Employee extends Info implements Data { public void load（） { /*do something */ } public void Info.load（） { /*do something*/ } }D public class Employee implements Info extends Data { public void Data.load（） { /*dsomething */ } public void load（） { /*do something */ } }E public class Employee implements Info extends Data { public void load（） { /*do something */ } public void Info.load（）{ /*do something*/ } }F public class Employee extends Info implements Data{ public void Data.load（） { /*do something*/ } public void Info.load（） { /*do something*/ } }
单选题现有： interface Data {public void load（）；} abstract class Info {public abstract void load（）；} 下列类定义中正确使用Data和Info的是哪项？（）A public class Employee implements Info extends Data { public void load（）{／*dosomething*／} }Bpublic class Employee extends Inf.implements Data{ public void load（） {／*do something*／} }Cpublic class Empl.yee implements Inf extends Data{ public void Data.1oad（）{* do something*／} public void load（）{／*do something*／} }Dpublic class Employee extends Inf implements Data { public void Data.1oad（） {／*do something*／） public void info.1oad（）{/*do something*/} }