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

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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.

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(Dynamic Programming.) Recall the problem presented in Assign- ment 3 where given a list L of n ordered integers you're tasked with removing m of them such that the distance between the closest two remaining integers is maxi- mized. See Assignment 1 for further clarification and examples. As it turns out there is no (known) greedy algorithm to solve this problem. However, there is a dynamic programming solution. Devise a dynamic programming solution which determines the maximum distance between the closest two points after removing m numbers. Note, it doesn't need to return the resulting list itself. Hint 1: Your sub-problems should be of the form S(i, j), where S(i, j) returns the maximum distance of the closest two numbers when only considering removing j of the first i numbers in L. As an example if L [3, 4, 6, 8, 9, 12, 13, 15], then S(4, 1) = 2, since the closest two values of L' = [3,4,6,8] are 6 and 8 after removing 4 (note, 8-6 = = 2). = Hint 2: For the sub-problem S(i, j),…

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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.

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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.

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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.

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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) _____ .

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