A class that cannot be instantiated is a(n) _____ .

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 15, Problem 1RQE

A class that cannot be instantiated is a(n) _____ .

Expert Solution & Answer

Program Description Answer

The classes which cannot be instantiated are referred as “abstract base class”.

Explanation of Solution

Inheritance:

Inheritance is the concept of inheriting the members and properties of a base class from the derived class. The main advantages of inheritance are,

Code reusability and fast implementation.
Reduces the program code.

Abstract base class:

Abstract base class is a class which contains at least one pure virtual function.

Compiler will not permit the user to instantiate an abstract class.
Normally, in function the base class contains the implementation and the derived class overrides this implementation with its own implementation.
But, the class which inherits an abstract base class must provide definition to the pure virtual function.
- The pure virtual functions implementation is not provided, and the function can be made pure virtual by adding (= 0) at the end of the function.
- The pure virtual function is mostly implemented in the derived class and not in a base class.

Example for abstract base class with virtual function:

/*Abstract base class as it uses virtual function*/

class Base

{

/*Access specifier*/

public:

/*virtual function*/

virtual void disp() = 0

};

/*Virtual function definition*/

void Base::disp()

{

//statement;

}

Explanation:

In the above example,

Define the abstract base class with the name of “Base”.
- Declare the pure virtual function with the name of “disp()” to make the class as the abstract class.
The implementation of pure virtual function “disp()” is not provided in base class. But, it is given outside of the class definition.
Hence, the abstract base class “Base” cannot be instantiated.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

This battle room is focused on entry level tasks for a network analyst where you will be given trials and reconnaissance, sensor tuning, log aggregation, SIEM queries, and network analysis. For this week’s project, complete the following tasks: From your Project Ares portal, LOG IN Click on LAUNCH GAME. Select the region NORTH AMERICA Click on Battle School Under the BATTLE SCHOOL pop-up window, click on START TRAINING. Under the BATTLE ROOMS tile, click on ENTER. Under the NETWORK ANALYST tile, click on PLAY. Wait for the Battle Room to load. While loading, the BATTLE ROOM button will display red. Once the Battle Room is loaded, the BATTLE ROOM button will turn yellow and the center of the disk display will indicate CONNECTED. Click on the BATTLE ROOM button to enter the Battle Room. Below the TASKS folder, make sure you click on INSTRUCTIONS to download the Network Analyst Fundamentals material. In the Battle Room, under the TASKS menu select task INTRUSION DETECTION. Complete…

Create a relationship between the common field (Technician Number) of the two tables. Make sure that each client must have 1 and only 1 technician assigned, and each technician can have multiple clients. 2. Create a query to show the Client Number, Client Name, Billed, Paid for clients in Anderson city. Save the query. 3. Create a query to show the Technician Number, Last Name, First Name, YTD Earnings for technicians whose Hourly Rate is greater than or equal to 30. Save the query. 4. Create a query to show Client Number, Client Name, Billed, Paid for clients whose technician number is 22 and whose Billed is over 300. Save the query. 5. Create a query to show the Technician Number, Last Name, First Name, Client Number, Client Name for clients whose technician number 23. Save the query. 6. Create a query to show the Technician Number, Last Name, First Name, Client Number, Client Name for clients whose technician number 23 or 29. Save the query Help please Microsoft office access

Dijkstra's Algorithm (part 1). Consider the network shown below, and Dijkstra’s link-state algorithm. Here, we are interested in computing the least cost path from node E (note: the start node here is E) to all other nodes using Dijkstra's algorithm. Using the algorithm statement used in the textbook and its visual representation, complete the "Step 0" row in the table below showing the link state algorithm’s execution by matching the table entries (i), (ii), (iii), and (iv) with their values. Write down your final [correct] answer, as you‘ll need it for the next question.

Answer 2

Textbook Question

Chapter 15, Problem 1RQE

A class that cannot be instantiated is a(n) _____ .

Expert Solution & Answer

Program Description Answer

The classes which cannot be instantiated are referred as “abstract base class”.

Explanation of Solution

Inheritance:

Inheritance is the concept of inheriting the members and properties of a base class from the derived class. The main advantages of inheritance are,

Code reusability and fast implementation.
Reduces the program code.

Abstract base class:

Abstract base class is a class which contains at least one pure virtual function.

Compiler will not permit the user to instantiate an abstract class.
Normally, in function the base class contains the implementation and the derived class overrides this implementation with its own implementation.
But, the class which inherits an abstract base class must provide definition to the pure virtual function.
- The pure virtual functions implementation is not provided, and the function can be made pure virtual by adding (= 0) at the end of the function.
- The pure virtual function is mostly implemented in the derived class and not in a base class.

Example for abstract base class with virtual function:

/*Abstract base class as it uses virtual function*/

class Base

{

/*Access specifier*/

public:

/*virtual function*/

virtual void disp() = 0

};

/*Virtual function definition*/

void Base::disp()

{

//statement;

}

Explanation:

In the above example,

Define the abstract base class with the name of “Base”.
- Declare the pure virtual function with the name of “disp()” to make the class as the abstract class.
The implementation of pure virtual function “disp()” is not provided in base class. But, it is given outside of the class definition.
Hence, the abstract base class “Base” cannot be instantiated.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Textbook Question

Chapter 15, Problem 1RQE

A class that cannot be instantiated is a(n) _____ .

Expert Solution & Answer

Program Description Answer

The classes which cannot be instantiated are referred as “abstract base class”.

Explanation of Solution

Inheritance:

Inheritance is the concept of inheriting the members and properties of a base class from the derived class. The main advantages of inheritance are,

Code reusability and fast implementation.
Reduces the program code.

Abstract base class:

Abstract base class is a class which contains at least one pure virtual function.

Compiler will not permit the user to instantiate an abstract class.
Normally, in function the base class contains the implementation and the derived class overrides this implementation with its own implementation.
But, the class which inherits an abstract base class must provide definition to the pure virtual function.
- The pure virtual functions implementation is not provided, and the function can be made pure virtual by adding (= 0) at the end of the function.
- The pure virtual function is mostly implemented in the derived class and not in a base class.

Example for abstract base class with virtual function:

/*Abstract base class as it uses virtual function*/

class Base

{

/*Access specifier*/

public:

/*virtual function*/

virtual void disp() = 0

};

/*Virtual function definition*/

void Base::disp()

{

//statement;

}

Explanation:

In the above example,

Define the abstract base class with the name of “Base”.
- Declare the pure virtual function with the name of “disp()” to make the class as the abstract class.
The implementation of pure virtual function “disp()” is not provided in base class. But, it is given outside of the class definition.
Hence, the abstract base class “Base” cannot be instantiated.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Textbook Question

Chapter 15, Problem 1RQE

A class that cannot be instantiated is a(n) _____ .

Expert Solution & Answer

Program Description Answer

The classes which cannot be instantiated are referred as “abstract base class”.

Explanation of Solution

Inheritance:

Inheritance is the concept of inheriting the members and properties of a base class from the derived class. The main advantages of inheritance are,

Code reusability and fast implementation.
Reduces the program code.

Abstract base class:

Abstract base class is a class which contains at least one pure virtual function.

Compiler will not permit the user to instantiate an abstract class.
Normally, in function the base class contains the implementation and the derived class overrides this implementation with its own implementation.
But, the class which inherits an abstract base class must provide definition to the pure virtual function.
- The pure virtual functions implementation is not provided, and the function can be made pure virtual by adding (= 0) at the end of the function.
- The pure virtual function is mostly implemented in the derived class and not in a base class.

Example for abstract base class with virtual function:

/*Abstract base class as it uses virtual function*/

class Base

{

/*Access specifier*/

public:

/*virtual function*/

virtual void disp() = 0

};

/*Virtual function definition*/

void Base::disp()

{

//statement;

}

Explanation:

In the above example,

Define the abstract base class with the name of “Base”.
- Declare the pure virtual function with the name of “disp()” to make the class as the abstract class.
The implementation of pure virtual function “disp()” is not provided in base class. But, it is given outside of the class definition.
Hence, the abstract base class “Base” cannot be instantiated.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Program Description Answer

The classes which cannot be instantiated are referred as “abstract base class”.

Explanation of Solution

Inheritance:

Inheritance is the concept of inheriting the members and properties of a base class from the derived class. The main advantages of inheritance are,

Code reusability and fast implementation.
Reduces the program code.

Abstract base class:

Abstract base class is a class which contains at least one pure virtual function.

Compiler will not permit the user to instantiate an abstract class.
Normally, in function the base class contains the implementation and the derived class overrides this implementation with its own implementation.
But, the class which inherits an abstract base class must provide definition to the pure virtual function.
- The pure virtual functions implementation is not provided, and the function can be made pure virtual by adding (= 0) at the end of the function.
- The pure virtual function is mostly implemented in the derived class and not in a base class.

Example for abstract base class with virtual function:

/*Abstract base class as it uses virtual function*/

class Base

{

/*Access specifier*/

public:

/*virtual function*/

virtual void disp() = 0

};

/*Virtual function definition*/

void Base::disp()

{

//statement;

}

Explanation:

In the above example,

Define the abstract base class with the name of “Base”.
- Declare the pure virtual function with the name of “disp()” to make the class as the abstract class.
The implementation of pure virtual function “disp()” is not provided in base class. But, it is given outside of the class definition.
Hence, the abstract base class “Base” cannot be instantiated.

Answer 8

Expert Solution & Answer

Program Description Answer

The classes which cannot be instantiated are referred as “abstract base class”.

Explanation of Solution

Inheritance:

Inheritance is the concept of inheriting the members and properties of a base class from the derived class. The main advantages of inheritance are,

Code reusability and fast implementation.
Reduces the program code.

Abstract base class:

Abstract base class is a class which contains at least one pure virtual function.

Compiler will not permit the user to instantiate an abstract class.
Normally, in function the base class contains the implementation and the derived class overrides this implementation with its own implementation.
But, the class which inherits an abstract base class must provide definition to the pure virtual function.
- The pure virtual functions implementation is not provided, and the function can be made pure virtual by adding (= 0) at the end of the function.
- The pure virtual function is mostly implemented in the derived class and not in a base class.

Example for abstract base class with virtual function:

/*Abstract base class as it uses virtual function*/

class Base

{

/*Access specifier*/

public:

/*virtual function*/

virtual void disp() = 0

};

/*Virtual function definition*/

void Base::disp()

{

//statement;

}

Explanation:

In the above example,

Define the abstract base class with the name of “Base”.
- Declare the pure virtual function with the name of “disp()” to make the class as the abstract class.
The implementation of pure virtual function “disp()” is not provided in base class. But, it is given outside of the class definition.
Hence, the abstract base class “Base” cannot be instantiated.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Program Description Answer

The classes which cannot be instantiated are referred as “abstract base class”.

Answer 12

Explanation of Solution

Inheritance:

Inheritance is the concept of inheriting the members and properties of a base class from the derived class. The main advantages of inheritance are,

Code reusability and fast implementation.
Reduces the program code.

Abstract base class:

Abstract base class is a class which contains at least one pure virtual function.

Compiler will not permit the user to instantiate an abstract class.
Normally, in function the base class contains the implementation and the derived class overrides this implementation with its own implementation.
But, the class which inherits an abstract base class must provide definition to the pure virtual function.
- The pure virtual functions implementation is not provided, and the function can be made pure virtual by adding (= 0) at the end of the function.
- The pure virtual function is mostly implemented in the derived class and not in a base class.

Example for abstract base class with virtual function:

/*Abstract base class as it uses virtual function*/

class Base

{

/*Access specifier*/

public:

/*virtual function*/

virtual void disp() = 0

};

/*Virtual function definition*/

void Base::disp()

{

//statement;

}

Explanation:

In the above example,

Define the abstract base class with the name of “Base”.
- Declare the pure virtual function with the name of “disp()” to make the class as the abstract class.
The implementation of pure virtual function “disp()” is not provided in base class. But, it is given outside of the class definition.
Hence, the abstract base class “Base” cannot be instantiated.

Answer 13

Ch. 15.3 - Prob. 15.1CP Ch. 15.3 - Prob. 15.2CP Ch. 15.3 - What will the following program display? #include...Ch. 15.3 - What will the following program display? #include...Ch. 15.3 - What will the following program display? #include...Ch. 15.3 - What will the following program display? #include...Ch. 15.3 - How can you tell from looking at a class...Ch. 15.3 - What makes an abstract class different from other...Ch. 15.3 - Examine the following classes. The table lists the...Ch. 15 - A class that cannot be instantiated is a(n) _____...

A class that cannot be instantiated is a(n) _____ .

Videos

Explanation of Solution

Want to see more full solutions like this?

Chapter 15 Solutions

Additional Engineering Textbook Solutions