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tigry1 [53]
3 years ago
15

Write an interface called Shape, inside, there is a method double area(); write a class called Box which implements the Shape. I

n Box, there are two data members: a double called length, and a double called width. Also implements constructor, and the method area() which calculates the area by multiplying the length and width. Then write a Tester class, which has a main method and creates a box object and displays the area.
Computers and Technology
1 answer:
Leto [7]3 years ago
6 0

Answer:

Explanation:

The following code is written in Java. It contains the interface Shape, the class Box, and a tester class called Brainly with the main method. Box implements the Shape interface and contains, the instance variables, the constructor which takes in the inputs for length and width, getter methods for length and width, and the defines the area() method from the interface. Then the object is created within the Brainly tester class' main method and the area() method is called on that object. Output can be seen in the image attached below. Due to technical difficulties, I have added the code as a txt file below.

You might be interested in
Redo Programming Exercise 16 of Chapter 4 so that all the named constants are defined in a namespace royaltyRates. PLEASE DONT F
Komok [63]

Answer:

Code is given below and output is attached in the diagram:

Explanation:

//Use this header file while using visual studio.

#include "stdafx.h"

//Include the required header files.

#include<iostream>

//Use the standard naming convention.

using namespace std;

//Define a namespace royaltyRates.

namespace royaltyRates

{

    //Declare and initialize required named constants.

    const double PAY_ON_DELIVERY_OF_NOVAL = 5000;

    const double PAY_ON_PUBLISH_OF_NOVAL = 20000;

    const double PER_ON_NET_PRICE_SECOND_OPTION =

    0.125;

    const double PER_ON_NET_PRICE_FIRST_4000 = 0.1;

    const double PER_ON_NET_PRICE_OVER_4000 = 0.14;

};

//Start the execution of main() method.

int main()

{

    //Declare and initialize the required variables

    //which are going to be used to calculate

    //royalities under each option.

    float net_price;

    int num_copies;

    float royaltyUnderOption1, royaltyUnderOption2,

    royaltyUnderOption3;

    royaltyUnderOption1 = royaltyUnderOption2

    = royaltyUnderOption3 = 0;

    //Prompt the user to enter the net price of each

    //novel.

    cout << "Please enter the net price for each ";

    cout << "copy of the novel : ";

    cin >> net_price;

    //Prompt the user to enter the estimated number

    //of copies of the novels to be sold.

    cout << "Please enter the estimated number ";

    cout << "of copies to be sold : ";

    cin >> num_copies;

    //Display the required details and royalty

    //calculated under option 1.

    cout << "\n*** Option 1: ****" << endl;

    cout << "Net price of each novel: $" << net_price;

    cout << endl;

    cout << "Estimated number of copies to be sold ";

    cout << "is: " << num_copies << endl;

    cout << "$";

    cout << royaltyRates::PAY_ON_DELIVERY_OF_NOVAL;

    cout << " is paid to author for the delivery of ";

    cout << "the final manuscript and $";

    cout << royaltyRates::PAY_ON_PUBLISH_OF_NOVAL;

    cout << " is paid for the publication of ";

    cout << "novel." << endl;

    royaltyUnderOption1 =

    royaltyRates::PAY_ON_DELIVERY_OF_NOVAL +

    royaltyRates::PAY_ON_PUBLISH_OF_NOVAL;

    cout << "Total amount of royalty under option 1 ";

    cout << "is $" << royaltyUnderOption1 << endl;

    //Display the required details and royalty

    //calculated under option 2.

    cout << "\n*** Option 2: ****" << endl;

    cout << "Net price of each novel: $";

    cout << net_price << endl;

    cout << "Estimated number of copies to be sold ";

    cout << "is: " << num_copies << endl;

    royaltyUnderOption2 =

   (royaltyRates::PER_ON_NET_PRICE_SECOND_OPTION *

    net_price)* num_copies;

    cout << "Total amount of royalty under option 2 ";

    cout << "is $" << royaltyUnderOption2 << endl;

    //Display the required details and royalty

    //calculated under option 3.

    cout << "\n*** Option 3: ****" << endl;

    cout << "Net price of each novel: $" << net_price;

    cout << endl;

    cout << "Estimated number of copies to be sold ";

    cout << "is: " << num_copies << endl;

    //If the number of copies is greater than 4000.

    if (num_copies > 4000)

    {

         //Total amount of royalty will be 10% of net

         //price of first 4000 copies and 14 % of net

         //price of copies sold over 4000.

         royaltyUnderOption3 =

         (royaltyRates::PER_ON_NET_PRICE_FIRST_4000 *

         net_price) * 4000 +

         (royaltyRates::PER_ON_NET_PRICE_OVER_4000 *

         net_price) * (num_copies - 4000);

    }

    //Otherwise,

    else

    {

         //Total amount of royalty will be 10% of net

         //price of first 4000 copies.

         royaltyUnderOption3 =

         (royaltyRates::PER_ON_NET_PRICE_FIRST_4000 *

         net_price) * num_copies;

    }

    cout << "Total amount of royalty under option 3 ";

    cout << "is $" << royaltyUnderOption3 << endl;

    //If the royalty under option 1 is greater than

    //royalty under option 2 and 3, then option 1 is

    //best option.

    if (royaltyUnderOption1 > royaltyUnderOption2 &&

    royaltyUnderOption1 > royaltyUnderOption3)

    {

         cout << "\nOption 1 is the best option that ";

         cout << "author can choose." << endl;

    }

    //If the royalty under option 2 is greater than

    //royalty under option 1 and 3, then option 2 is

    //best option.

    else if (royaltyUnderOption2 > royaltyUnderOption1

    && royaltyUnderOption2 > royaltyUnderOption3)

    {

         cout << "\nOption 2 is the best option that ";

         cout << "author can choose." << endl;

    }

    //If the royalty under option 3 is greater than

    //royalty under option 1 and 2, then option 3 is

    //best option.

    else

    {

         cout << "\nOption 3 is the best option that ";

         cout << "author can choose." << endl;

    }

    //Use this command while using visual studio.

    system("pause");

    return 0;

}

5 0
3 years ago
If you want to distribute a formatted Microsoft word document to people who don't have word save it as a __file
Helga [31]
If you want them only to read it and not change it send as a .pdf else I would send as a .txt file. Hope that helps
5 0
3 years ago
How do you change the top and bottom margins of an entire document
Elodia [21]
Deep depending on the document editor, you should be able to just click either the top or bottom margin to edit!
6 0
4 years ago
Write a program that lists all ways people can line up for a photo (all permutations of a list of strings). The program will rea
irinina [24]

Answer:

Check the explanation

Explanation:

Executable Code:

def all_permutations(permList, nameList):

   # Define the function to create a list

   # of all the permutations.

   def createPermutationsList(nameList):

       # Compute and store the length of the list.

       n = len(nameList)

       # Return an empty list if the size is 0.

       if n == 0:

           return []

       # Return the element if the size is 1.

       if n == 1:

           return [nameList]

       # Create an empty list to store the permutations.

       permList = []

       # Start the loop to traverse the list.

       for i in range(n):

           # Store the first element of the current list.

           first = nameList[i]

           # Compute the store the remaining list.

           remaining = nameList[:i] + nameList[i+1:]

           # Start the loop and call the function recursively

           # with the remaining list.

           for perm in createPermutationsList(remaining):

               # Append the element in the permutation list.

               permList.append([first] + perm)

       # Return the permutation list.

       return permList

   # Call the function to compute the permutation list

   # and store the result.

   permList = createPermutationsList(nameList)

   # Start the loop to display the values.

   for perm in permList:

       for val in perm:

           print(val, end = " ")

       print()

# Call the main() function.

if __name__ == "__main__":

   # Prompt the user to enter the input.

   nameList = input().split(' ')

   permList = []

   # Call the function to create and output

   # the permutations of the list.

   all_permutations(permList, nameList)

#endcode

3 0
3 years ago
write a program that reads a string from the user containing a date in the form mm/dd/yyyy. it should print the date in the form
julia-pushkina [17]

Using the knowledge in computational language in python it is possible to write a code that reads a string from the user containing a date in the form mm/dd/yyyy.

<h3>Writting the code:</h3>

<em>months_info = ['January', 'February','March','April', 'May','June', 'July','August', 'September', 'October', 'November', 'December']</em>

<em>date = input('Enter a date using the mm/dd/yyyy format ')</em>

<em>m, d, y = date.split('/')</em>

<em>m = int(m) - 1</em>

<em>name_of_month = months_info[m]</em>

<em>print('{} {}, {}'.format(name_of_month, d, y))</em>

See more about python at brainly.com/question/13437928

#SPJ1

3 0
2 years ago
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