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ExtremeBDS [4]
3 years ago
14

Design a hierarchy of classes, where the Media superclass has the artistName and the mediaName as the common attributes. Create

a subclass called CDMedia that has the additional arrayList of String objects containing the songs per album. Create another subclass called DVDMedia that has the additional year the movie came out, and an arrayList of co-stars for the movie.
Computers and Technology
1 answer:
zaharov [31]3 years ago
7 0

Answer:

See attached file.

Explanation:

See attached file for detailed code.

Download txt
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Answer:3

Explanation: it’s 3

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3 years ago
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Write a program that outputs "Hello World!".
tekilochka [14]
Print(“Hello World!”)

I hope this helps :) I’m sry is this what you wanted or were you looking for something else because I’m willing to help either way.
4 0
2 years ago
C++
Nookie1986 [14]

Answer:

Following are the code to the given question:

#include <iostream>//header file

using namespace std;

class Window //defining a class Window

{

private:

int width, height;//defining integer variable

public:

friend ostream& operator << (ostream& stm, Window& width)//defining a friend function that takes two parameters

{

return stm<<"a ("<<width.width<<" x "<<width.height<<") window"; //use return keyword that return its values

}  

Window(int width, int height): width(width), height(height)//defining parameterized constructor that inherit width and height in its parameters  

{}

};

int main() //Main method

{

Window w(80,90);//calling class constructor

cout<<w;//print object value

return 0;

}

Output:

a (80 x 90) window

Explanation:

In the above code, a class "Window" is defined that uses a friend function "ostream& operator" is declared that uses the "ostrea&" as a data type to hold two-variable "stm and w" in its parameter, and declared the parameterized constructor to hold value by inheriting width and height in its parameters.

Inside the main method, a class object is created that calls the constructor and uses the print method to print object value.

7 0
3 years ago
Create a class Car, which contains Three data members i.e. carName (of string type), ignition (of bool type), and currentSpeed (
olasank [31]

Answer:

Copy paste it.

Explanation:

#include <iostream>

#include <string>

using namespace std;

//Create a class Car, which contains • Three data members i.e. carName (of string type), ignition (of bool type), and //currentSpeed (of integer type)

class Car

{

public:

string carName;

bool ignition;

int currentSpeed;

//A no-argument constructor to initialize all data members with default values

//default value of string is "",bool is false,int is 0

Car()

{

carName="";

ignition=false;

currentSpeed=0;

}

//A parameterized constructor to initialize all data members with user-defined values

Car(string name,bool i,int speed)

{

carName=name;

ignition=i;

currentSpeed=speed;

}

//Three setter functions to set values for all data members individually

// Three getter function to get value of all data members individually

void setCarName(string s)

{

carName=s;

}

void setIgnition(bool ig)

{

ignition=ig;

}

void setCurrentSpeed(int speed)

{

currentSpeed=speed;

}

string getCarName()

{

return carName;

}

bool getIgnition()

{

return ignition;

}

int getCurrentSpeed()

{

return currentSpeed;

}

//A member function setSpeed( ) // takes integer argument for setting speed

void setSpeed(int sp1)

{

currentSpeed=sp1;

}

};

//Derive a class named Convertible

class Convertible:public Car

{

//A data member top (of Boolean type)

public:

bool top;

public:

//A no-argument constructor to assign default value as “false” to top

Convertible()

{

top=false;

}

//A four argument constructor to assign values to all data-members i.e. carName, ignition,

//currentSpeed and top.

Convertible(string n,bool i,int s,bool t):Car(n,i,s)

{

carName=n;

ignition=i;

currentSpeed=s;

top=t;

}

// A setter to set the top data member up

void setTop(bool t)

{

top=t;

}

//A function named show() that displays all data member values of invoking object

void show()

{

cout<<"Car name is:"<<carName<<endl;

cout<<"Ignition is: "<<ignition<<endl;

cout<<"Current Speed is :"<<currentSpeed<<endl;

cout<<"Top is:"<<top<<endl;

}

};

//main function

int main()

{

//creating object for Convertible class

Convertible c1("Audi",true,100,true);

c1.show();

c1.setCarName("Benz");

c1.setIgnition(true);

c1.setCurrentSpeed(80);

c1.setTop(true);

c1.show();

cout<<"Car Name is: "<<c1.getCarName()<<endl;

cout<<"Ignition is:"<<c1.getIgnition()<<endl;

cout<<"Current Speed is:"<<c1.getCurrentSpeed()<<endl;

return 0;

}

4 0
3 years ago
Why is Data-Driven Analytics of interest to companies?
vivado [14]

Answer:

It allows companies to make definitive predictions about the future. It gives companies the ability to make informed decisions.

It helps Data Analysts shape an analytics problem from a business problem.

Explanation:

4 0
3 years ago
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