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inysia [295]
3 years ago
15

Which organization developed a network called CSNET to provide a network free to all American research and educational instituti

ons
Computers and Technology
1 answer:
Citrus2011 [14]3 years ago
7 0
<span>The National Science Foundation (NSF) is the organization which </span><span>developed a network called CSNET to provide a network free to all American research and educational institutions. It is an agency in the government of the United States that is responsible for research and development in the field of science and engineering. </span>
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Create a class named CarRental that contains fields that hold a renter's name, zip code, size of the car rented, daily rental fe
Anarel [89]

Answer:

Here is the corrected code: The screenshot of the program along with its output is attached. The comments are written with each line of the program for better understanding of the code.

CarRental.java

public class CarRental  {  //class name

//below are the data members name, zipcode, size, dFee, days and total

String name;  

int zipcode;

String size;

double dFee;

int days;

double total;  

public String getName()  {  //accessor method to get the name

return name; }

public int getZipcode()  { //accessor method to get the zipcode

return zipcode; }

public String getSize() {  //accessor method to get the size

return size; }

public int getDays() {  //accessor method to get the days

return days;  }

public CarRental(String size)  {  //constructor of CarRental class

if(size.charAt(0)=='e')  // checks if the first element (at 0th index) of size data member is e

     dFee = 29.99;  // sets the dFee to 29.99

  else if(size.charAt(0)=='m')  // checks if the first element (at 0th index) of size data member is m

     dFee = 38.99;  // sets the dFee to 38.99

  else   // checks if the first element (at 0th index) of size data member is f

     dFee =43.50;  // sets the dFee to 43.50

   }

public void calculateTotal(int days) {  //method calculateTotal of CarRental

total = dFee*days;  }  //computes the rental fee

public void print()   {  //method to display the total rental fee

System.out.println("Your rental total cost is: $" + total);  } }

Explanation:

LuxuryCarRental.java

import java.util.*;

public class LuxuryCarRental extends CarRental {  //class LuxuryCarRental that is derived from class CarRental

public LuxuryCarRental(String size, int days) {  // constructor of LuxuryCarRental

super(size);}   //used when a LuxuryCarRental class and CarRental  class has same data members i.e. size

public void calculateTotal() {  //overridden method

super.calculateTotal(days); // used because CarRental  and LuxuryCarRental class have same named method i.e.  calculateTotal

dFee = 79.99;  //sets the rental fee at $79.99 per day

total = dFee;  }  //sets total to rental fee value

public void print(){  //overridden method

   int chauffeur;  // to decide to include chauffeur

Scanner keyboard = new Scanner(System.in);  //used to take input from user

System.out.println("Do you want to add a chauffeur for $200? Enter 0 for"

+ " yes and 1 for no");  // prompts the user to respond to the option of including a chauffeur at $200 more per day

chauffeur = keyboard.nextInt();   //reads the input option of chauffeur from user

if(chauffeur==1)  //if user enters 1 which means user does not want to add a chauffeur

total = dFee;  //then set the value of dFee i.e.  $79.99  to total

else  //if user enters 0 which means user wants to add a chauffeur

total = dFee + 200;  //adds 200 to dFee value and assign the resultant value to total variable

System.out.println("Your rental total cost is: $" + total);  }  } //display the total rental fee

UseCarRental.java

import java.util.*;

public class UseCarRental{ //class name

public static void main(String[] args){ //start of main() function body

String name, size; // declare variables

int zipcode, days; //declare variables

Scanner keyboard = new Scanner(System.in); // to take input from user

System.out.println("Enter total days you plan on renting: "); //prompts user to enter total days of rent

days = keyboard.nextInt(); // reads value of days from user

System.out.println("Enter your name: "); //prompts user to enter name

name = keyboard.next(); //reads input name from user

System.out.println("Enter your billing zipcode: "); // prompts user to enter zipcode

zipcode = keyboard.nextInt(); //reads input zipcode from user

System.out.println("Enter the size of the car: "); // prompts user to enter the value of size

size = keyboard.next(); //reads input size from user

CarRental economy = new CarRental(size); //creates an object i.e. economy of class CarRental

economy.calculateTotal(days); //calls calculateTotal method of CarRental using instance economy

economy.print(); //calls print() method of CarRental using instance economy

LuxuryCarRental fullsize = new LuxuryCarRental(size, days);  //creates an object i.e. fullsize of class LuxuryCarRental

fullsize.calculateTotal();  //calls calculateTotal method of LuxuryCarRental using instance fullsize

fullsize.print(); }} //calls print() method of LuxuryCarRental using instance fullsize      

4 0
3 years ago
python This program outputs a downwards facing arrow composed of a rectangle and a right triangle. The arrow dimensions are defi
riadik2000 [5.3K]

Answer:

Check the explanation

Explanation:

arrow_base_height = int(input('Enter arrow base height:\n'))

arrow_base_width = int(input('Enter arrow base width:\n'))

arrow_head_width = arrow_base_width

while arrow_head_width <= arrow_base_width:

   arrow_head_width = int(input('Enter arrow head width:\n'))

print()

for i in range(arrow_base_height):

   for j in range(arrow_base_width):

       print('*', end='')

   print()

for i in range(arrow_head_width):

   for j in range(arrow_head_width-i):

       print('*', end='')

   print()

Kindly check the code output below.

5 0
3 years ago
Read 2 more answers
Question 10 of 10
ValentinkaMS [17]

Answer:

C. Dow Jones

Explanation:

It’s the Dow Jones certainly, and we also know it as Dow 30. You will find with a little research that Dow Jones is an index of the 30 carefully chosen blue-chip stocks, and general industrial stocks. And this is price prejudiced average, and of 30 stocks that can be well-thought-out as an all-purpose measure for the whole stock market performance.

3 0
3 years ago
Identify two entities and 2 of their attributes from the given scenario.
polet [3.4K]

Bookstore and BookSearch are the two entities for the given scenario.

Explanation:

  • For the given Book.com virtual store, there can be two entities like Bookstore and BookSearch.
  • Bookstore can have all the details of the books in the virtual store. hence the attributes can be
  • Bookstore attributes: bookname, Authorname, Publisher, Publishedyear, Agegroup, category.
  • BookSearch entity can be used to search the books in the virtual store.
  • Booksearch attributes: bookname, category, bookid, authorname.
8 0
3 years ago
Write a Java class called BankAccount (Parts of the code is given below), which has two private fields: name (String) and balanc
NemiM [27]

Answer:

Here is the Bank Account class:

public class Bank Account {   //class definition

   private String name;  //private String type field to hold name

   private double balance;    // private double type field to hold balance

    public Bank Account(String name, double balance) {  // parameter constructor that takes

//this keyword is used to refer to the data members name and balance and to avoid confusion between name, balance private member fields and constructor arguments name, balance

 this.name = name;  

 this.balance = balance;  }    

   public void deposit(double amount) {   //method to deposit amount

               balance = balance + amount;     }    // adds the amount to the account causing the current balance to increase

   public void withdraw(double amount) {  //method to withdraw amount

 balance = balance - amount;   }   //subtracts the amount causing the current balance to decrease

    public String toString() {  // to display the name and current balance

              return name + " , $" + balance; }  } //returns the name and the current balance separated by a comma and dollar

Explanation:

The explanation is provided in the attached document due to some errors in uploading the answer.

3 0
3 years ago
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