If name is a String instance variable, average is a double instance variable, and numOfStudents is a static int variable, why won’t the following code from a class compile?public Student(String s) {name = s;average = getAverage(name);numOfStudents++;}public double getAverage(String x) {numOfStudents++;double ave = StudentDB.getAverage(x);return ave;}public static void setAverage(double g) {average = g;}a.The setAverage() method can’t access the average instance variable.b.The getAverage() method can’t increment the numOfStudents variable.c.The constructor can’t increment the numOfStudents variable.d.The getAverage() method can’t call a static method in the StudentDB class.

Answers

Answer 1

Answer:

a.

Explanation:

Based solely on the snippet of code provided on the question the main reason why the code won't compile (from the options provided) is that the setAverage() method can’t access the average instance variable. Since the average variable is an instance variable it means that it only exists inside the one of the functions and not to the entire class. Meaning that in this scenario it can only be accessed by the Student function and once that function finishes it no longer exists. Also, it is not one of the options but if these variables are instance variables as mentioned their type needs to be defined inside the function.


Related Questions

Create a Department object which contains a name (String), budget (double), and an ArrayList of Employee objects. Each Employee object contains a FirstName (String). LastName(String), and an Address object. Each Address object contains a Street (String), Apartment (int), City (String), and State as a char array of length 2. The Apartment parameter is optional but the other three are mandatory! Ensure no Address object can be created that does not have them. Finally, create a test program that allows users to Add, Delete, Print, and Search the Employees of a Department.

Answers

Answer:

Explanation:

The following code is very long and is split into the 4 classes that were requested/mentioned in the question: Department, Employee, Address, and Test. Each one is its own object with its own constructor. Getters and Setters were not created since they were not requested and the constructor handles all of the variable creation. Address makes apartment variable optional by overloading the constructor with a new one if no argument is passed upon creation.

package sample;

import sample.Employee;

import java.util.ArrayList;

class Department {

   String name = "";

   double budget = 0;

   ArrayList<Employee> employees = new ArrayList<>();

   void Department(String name, double budget, ArrayList<Employee> employees) {

       this.name = name;

       this.budget = budget;

       this.employees = employees;

   }

}

------------------------------------------------------------------------------------------------------------

package sample;

public class Employee {

   String FirstName, LastName;

   Address address = new Address();

   public void Employee(String FirstName, String LastName, Address address) {

       this.FirstName = FirstName;

       this.LastName = LastName;

       this.address = address;

   }

}

-------------------------------------------------------------------------------------------------------------

package sample;

class Address {

   String Street, City;

   int apartment;

   char[] state;

   public void Address(String street, String city, char[] state, int apartment) {

       this.Street = street;

       this.City = city;

       this.state = state;

       this.apartment = apartment;

   }

   public void Address(String street, String city, char[] state) {

       this.Street = street;

       this.City = city;

       this.state = state;

       this.apartment = 0;

   }

}

-------------------------------------------------------------------------------------------------------------

package sample;

public class Test extends Department {

   public void add(Department department, Employee employee) {

       department.employees.add(employee);

   }

   public void delete(Department department, Employee employee) {

       for (int x = 0; x < department.employees.size(); x++) {

           if (department.employees.get(x) == employee) {

               department.employees.remove(x);

           }

       }

   }

   public void Print(Department department, Employee employee) {

       for (int x = 0; x < department.employees.size(); x++) {

           if (department.employees.get(x) == employee) {

               System.out.println(employee);

           }

       }

   }

   public void Search (Department department, Employee employee) {

       for (int x = 0; x < department.employees.size(); x++) {

           if (department.employees.get(x) == employee) {

               System.out.println("Employee is located in index: " + x);

           }

       }

   }

}

internet is an interconnected networks
o true
o false

Answers

Answer:

True.

Internet is an interconnected network.

Which functions do you use to complete Step 3e? Check all that apply.

Animations tab
Animation styles
Design
Lines
Motion Paths
Reordering of animations

Answers

Answer: Animations tab

Animation styles

Lines

Motion paths

Explanation: Edg2021

Suppose you decide to use the number of times you see any of the area codes of the places Yanay has been to in 50 spam calls as your test statistic. Question 7. Write a function called simulate_visited_area_codes that generates exactly one simulated value of your test statistic under the null hypothesis. It should take no arguments and simulate 50 area codes under the assumption that the result of each area is sampled from the range 200-999 inclusive with equal probability. Your function should return the number of times you saw any of the area codes of the places Yanay has been to in those 50 spam calls. Hint: You may find the textbook section on the sample_proportions function to be useful. For model_proportions, under the null hypothesis, what's the chance of drawing one of the area codes Yanay has recently been to

Answers

Answer:

In Python:

import random

def simulate_visited_area_codes():

   area_codes = []

   for i in range(51):

       num = random.randint(200,1000)

       area_codes.append(num)

   visited_codes = [289, 657, 786, 540]

   count = 0

   for i in range(51):

       for j in range(len(visited_codes)):

           if area_codes[i] == visited_codes[j]:

               count+=1

   return count

print("Visited Areas: "+str(simulate_visited_area_codes()))

Explanation:

So many incomplete details in your question, so I will fill in the gap (i.e. make assumptions)

The assumptions are:

The 50 area codes is stored in area_codes list; the codes are randomly generatedThe visited area codes is stored in visited_codes list, the list is initializes with [289, 657, 786, 540]

The program and explanation is as follows: (comments are written in bold)

#This imports the random module

import random

#This defines the function

def simulate_visited_area_codes():

#Thie initializes area_codes to an empty list

   area_codes = []

#This iterates from 1 to 50 and generate 50 random numbers to the area_codes list

   for i in range(51):

       num = random.randint(200,1000)

       area_codes.append(num)

#This initializes the visited_code

   visited_codes = [289, 657, 786, 540]

#This initializes count variable to 0

   count = 0

#This iterates through the list and looks for matching code between the area_code and the visited_code lists

   for i in range(51):

       for j in range(len(visited_codes)):

           if area_codes[i] == visited_codes[j]:

#The count variable is incremented by 1 for matching codes

               count+=1

#This returns the count

   return count

#The main begins here and prints the number of area code visited

print("Visited Areas: "+str(simulate_visited_area_codes()))

Simulate Function:

Simulate one or more responses from the distribution corresponding to a fitted model object.

The code is shown below:-

visited_test_statistics_under_null = make_array()

repetitions = 20000

for i in np.arange(repetitions):

  new_sum_of_correct_area_code = simulate_visited_area_codes()

  visited_test_statistics_under_null = np.append(visited_test_statistics_under_null, new_sum_of_correct_area_code)

visited_test_statistics_under_null( )

Learn more about the topic Simulate Function:

https://brainly.com/question/14492046

helpppp me please..
........​

Answers

Answer:

The employer's monthly salary (X)

Create an array of doubles to contain 5 values Prompt the user to enter 5 values that will be stored in the array. These values represent hours worked. Each element represents one day of work. Create 3 c-strings: full[40], first[20], last[20] Create a function parse_name(char full[], char first[], char last[]). This function will take a full name such as "Noah Zark" and separate "Noah" into the first c-string, and "Zark" into the last c-string. Create a function void create_timecard(double hours[], char first[], char last[]). This function will create (write to) a file called "timecard.txt". The file will contain the parsed first and last name, the hours, and a total of the hours. See the final file below. First Name: Noah

Answers

Solution :

[tex]$\#$[/tex]include [tex]$<stdio.h>$[/tex]  

[tex]$\#$[/tex]include [tex]$<string.h>$[/tex]    

void parse[tex]$\_$[/tex]name([tex]$char \ full[]$[/tex], char first[tex]$[],$[/tex] char last[tex]$[])$[/tex]

{

// to_get_this_function_working_immediately, _irst

// stub_it_out_as_below._When_you_have_everything_else

// working,_come_back_and_really_parse_full_name

// this always sets first name to "Noah"

int i, j = 0;

for(i = 0; full[i] != ' '; i++)

  first[j++] = full[i];

first[j] = '\0';  

// this always sets last name to "Zark"

j = 0;

strcpy(last, full+i+1);

// replace the above calls with the actual logic to separate

// full into two distinct pieces

}

int main()

{

char full[40], first[20], last[20];

double hours[5];

// ask the user to enter full name

printf("What is your name? ");

gets(full);

// parse the full name into first and last

parse_name(full, first, last);

// load the hours

for(int i = 0; i < 5; i++)

{

   printf("Enter hours for day %d: ", i+1);

   scanf("%lf", &hours[i]);

}

// create the time card

FILE* fp = fopen("timecard.txt", "w");

fprintf(fp, "First Name: %s\n", first);

fprintf(fp, "Last Name: %s\n", last);

double sum = 0.0;

for(int i = 0; i < 5; i++)

{

   fprintf(fp, "Day %i: %.1lf\n", i+1, hours[i]);

   sum += hours[i];

}

fprintf(fp, "Total: %.1f\n", sum);    

printf("Timecard is ready. See timecard.txt\n");

return 0;

}

By using your own data, search engines and other sites try to make your web experience more personalized. However, by doing this, certain information is being hidden from you. Which of the following terms is used to describe the virtual environment a person ends up in when sites choose to show them only certain, customized information?

A filter bubble

A clustered circle

A relational table

An indexed environment

Answers

I believe it is a filter bubble

Answer:

A filter bubble

Explanation:

5. In an array-based implementation of the ADT list, the getEntry method locates the entry by a. going directly to the appropriate array element b. searching for the entry starting at the beginning of the array working to the end c. searching for the entry starting at the end of the array working to the beginning d. none of the above

Answers

Expert Answer for this question-

Explanation:

Answer- C

Overheating of a computer can be easily prevented. Explain how​

Answers

Here are a few examples:

•] Keep away from windows or vents to prevent it from turning warm.

•] Clean off dust that’s on the computer.

•] Remove all the things that are blocking air to pass to let it cool down.

•] Putting a soft item below the computer is a action that is prohibited as it blocks the airways which causes it to overheat instead put it on a sturdy flat surface to prevent the aforementioned information.

•] To never overcharge your computer too 100% overnight or any time of the day since it overheats and causes battery life to be short, instead put it to charge when you’re conscious while keeping an eye on it, perhaps set a timer/alarm to notify you if you forget.

Computer programming

Answers

Here is the answer for the question

8) What is the address of the first SFR (1/O Register)?​

Answers

Answer:

The Register A is located at the address E0H in the SFR memory space. The Accumulator is used to hold the data for almost all the ALU Operations. Some of the operations where the Accumulator is used are: Arithmetic Operations like Addition, Subtraction, Multiplication etc.

Which of the following parameters is optional sample(a,b,c,d=7

Answers

Parameter D is Optional as it is already assigned to an integer value: 7.

The optional Parameter is D as it is said to be assigned  an integer value of 7.

What are optional parameters?

This is known to be a process  that  is made up of optional choices that one do  not need to push or force so as to pass arguments at their set time.

Note that The optional Parameter is D as it is said to be assigned  an integer value of: 7 because it implies that one can use the call method without pushing the arguments.

Learn more about Parameter from

https://brainly.com/question/13151723

#SPJ2

What may make it easy for cybercriminals to commit cybercrimes? Select 2 options.

Cybercrimes are not classified as real crimes, only as virtual crimes.

They operate from countries that do not have strict laws against cybercrime.

They are not physically present when the crime is committed.

The United States has no law enforcement that acts against them.

Law enforcement agencies lack the expertise to investigate them.

Answers

Answer: They operate from countries that do not have strict laws against cybercrime.

They are not physically present when the crime is committed.

Explanation:

edg

Answer:

They operate from countries that do not have strict laws against cybercrime.

They are not physically present when the crime is committed.

Explanation:

Is social media bringing people together or cause in sepretation?​

Answers

Answer:

IT BRINGS PEOPLE TOGETHERRRR

Explanation:

Ive met so many new people on Discord and I love them more than life its self

Answer:

Social media brings people together in my opinion because before social media people only had the option to call and message. Now with social media we have a way to express our creativity with pictures and videos that you can watch from your phone from anywhere.

2. Write a Python regular expression to replace all white space with # in given string “Python is very simple programming language.”

Answers

Dear Parent, Please note that for your convenience, the School Fee counter would remain open on Saturday,27th March 2021 from 8am to 2 pm. Kindly clear the outstanding amount on account of fee of your ward immediately either by paying online through parent portal or by depositing the cheque at the fee counter to avoid late fee charges.For payment of fee the following link can also be used Pay.balbharati.org

1. P=O START: PRINT PP = P + 5 IFP
<=20 THEN GOTO START: * what is output​

Answers

Answer:

0

5

10

15

20

Explanation:

P=O should be P=0, but even with this error this is the output.

When P reaches 20 it will execute the loop once more, so 20 gets printed, before getting increased to 25, which will not be printed because then the loop ends.

what does the
command do

Answers

Please specify your question.

Which of the following cannot be used in MS Office.
Joystick
Scanner
Light Pen
Mouse

Answers

Answer:

A.

Explanation:

A Joystick is a control device that is connected to the computer to play games. A joystick is similar in structure to a control stick used by pilots in airplanes and got its name from the same. A joystick contains a stick, base, extra buttons, auto switch fire, trigger, throttle, POV hat, and a suction cup. A joystick also serves the purpose of assistive technology.

The device which can not be used in MS Office is a joystick. Therefore, option A is correct.

In C++
Write a simple program to test your Circle class. The program must call every member function at least once. The program can do anything of your choice.

Answers

Answer:

int main() {

   Circle* pCircle = new Circle(5.0f, 2, 3);

   pCircle->up();

   pCircle->down();

   pCircle->left();

   pCircle->right();

   cout << "X: " << pCircle->getx() << endl;

   cout << "Y: " << pCircle->gety() << endl;

   cout << "Radius: " << pCircle->getRadius() << endl;

   pCircle->print();

   pCircle->update_radius(4.0f);

   if (pCircle->isUnit()) {

       cout << "is unit" << endl;

   }

   pCircle->move_x(10);

   pCircle->move_y(10);

}

Explanation:

something like that?

# 1) Complete the function to return the result of the conversion
def convert_distance(miles):
km = miles * 1.6 # approximately 1.6 km in 1 mile

my_trip_miles = 55

# 2) Convert my_trip_miles to kilometers by calling the function above
my_trip_km = ___

# 3) Fill in the blank to print the result of the conversion
print("The distance in kilometers is " + ___)

# 4) Calculate the round-trip in kilometers by doubling the result,
# and fill in the blank to print the result
print("The round-trip in kilometers is " + ___)

Answers

Answer:

See explanation

Explanation:

Replace the ____ with the expressions in bold and italics

1)          return km

 

return km returns the result of the computation

2)  = convert_distance(my_trip_miles)

convert_distance(my_trip_miles) calls the function and passes my_trip_miles to the function

3)  + str(my_trip_km)

The above statement prints the returned value

4)  +str(my_trip_km * 2)

The above statement prints the returned value multiplied by 2

importance of information
literay to the society

Answers

Explanation:

Information literacy is important for today's learners, it promotes problem solving approaches and thinking skills – asking questions and seeking answers, finding information, forming opinions, evaluateing sources, and making decisions fostering successful learners, effective contributors, and confident individuals.
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