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3 years ago

The main purpose of a constructor is to initialize the data members at the moment that an object is created. true or false?

Computers and Technology

1 answer:

GalinKa [24]3 years ago

4 0

Answer:

True

Explanation:

In Object Oriented Programming, a constructor is a type of subroutine whose purpose is to create an object.

when the constructor is called, it initializes the data members of the object and establishes the invariant of the class.

Some important concepts:

Data members: The data members are the data encapsulated within the object (e.g. int hour for the variable 'hour' in an object called 'date')

Invariant of the class: The class invariant is the invariant used to constrain the object (e.g. values between 0 and 24 for the variable 'hour')

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Please help

ExtremeBDS [4]

Answer:

Answered below

Explanation:

This solution is written in Kotlin programming language.

fun average (a: Int, b: Int, c: Int, d: Int, e: Int) : Double {

#variable to hold the addition of all parameters

var sum = a + b + c + d + e

#variable to hold the average of sum

var avg = sum / 5

return avg

}

#call the function to see how it works.

# this operation is done in the fun main()

var test: Double = average ( 5, 4, 7 , 3, 9)

print (test)

8 0

3 years ago

If a user wished to insert a triangle or a callout figure in a document, he or she should select the _____ option.

Vlada [557]

The Insert Tab option

You can add a shape your word, excel or PowerPoint document to make a drawing. To do this in MS Word, click on the Insert tab, and in the illustration group, click on the shapes option. Click the shapes or callouts that you would like to insert and then drag to place the shape anywhere in the document.

4 0

3 years ago

Please debug the below code in Java please.

lisabon 2012 [21]

Answer:

Check the explanation

Explanation:

//Bugs are highlighted in bold text

class Invoice

Declarations

private num invoiceNumber

private string customer

private num balanceDue

private num tax

public void setInvoiceNUMBER(num number)

Declarations

num LOW_NUM = 1000

num HIGH_NUM = 9999

if number > HIGH_NUM then

invoiceNumber = 0

else

if number < LOW_NUM then

invoiceNumber = 0

else

invoiceNumber = num

endif

return

public void setCustomer(string cust)

customer = cust

return

public void setBalanceDue(num balance)

//Bug balanceDue is Invoice class varible

//but it is assigned to balance .it gives error

balance = balanceDue

setTax()

return

private void setTax()

Declarations

//Bug TAX_RATE is declared as string

//but assigned a double value

string TAX_RATE = 0.07

tax = tax * TAX_RATE

return

public void displayInvoice()

output "Invoice #", invoiceNumber

output "Customer: ", customer

output "Due: ", balanceDue

output "Tax: ", taxDue

//Bug

//Invoice class has no variable called balance .it should be balanceDue

output "Total ", balance + taxDue

return

endClass

start

Declarations

Invoice inv1

Invoice inv2

Invoice inv3

//Warning

//it gives warning object taken but not initilaized

Invoice inv4

inv1.setInvoiceNumber(1244)

inv1.setCustomer("Brown")

inv1.setBalanceDue(1000.00)

inv1.displayInvoice()

inv2.setInvoiceNumber(77777)

inv2.setCustomer("Jenkins")

inv2.setBalanceDue(2000.00)

inv2.displayInvoice()

inv3.setInvoiceNumber(888)

inv3.setCustomer("Russell")

inv3.setBalanceDue(3000.00)

//Bug

//setTax method of Invioce doesnot take any arguments

inv3.setTax(210.00)

inv3.displayInvoice()

stop

//Here is the complete program in c++

//Run the program using Microsoft visual studio 2010 vc++

#include<iostream>

#include<iomanip>

#include<string>

using namespace std;

class Invoice

{

//class varibales

private:

int invoiceNumber;

string customer;

double balanceDue;

double tax;

//class methods

public:

void setCustomer(string cus);

void displayInvoice();

void setBalanceDue(double balance);

void setInvoiceNUMBER(int number);

void setTax();

};

void Invoice::displayInvoice()

{

cout<< setw(10)<<"Invoice #"<<setw(5)<<invoiceNumber<<endl;

cout<<setw(10)<<"Customer: "<<setw(5)<<customer<<endl;

cout<<setw(10)<<"Due: "<<setw(5)<<balanceDue<<endl;

cout<<setw(10)<<"Tax: "<<setw(5)<<tax<<endl;

//Bug

//Invoice class has no variable called balance .it should be balanceDue

cout<< "Total "<< balanceDue + tax<<endl;

}

void Invoice::setCustomer(string cust)

{

customer = cust;

}

void Invoice::setInvoiceNUMBER(int number)

{

const int LOW_NUM = 1000;

const int HIGH_NUM = 9999;

if( number > HIGH_NUM )

invoiceNumber = 0;

else

if (number < LOW_NUM )

invoiceNumber = 0;

else

invoiceNumber = number;

}

void Invoice::setBalanceDue(double balance)

{

balanceDue = balance;

}

void Invoice::setTax()

{

double TAX_RATE = 0.07;

tax = balanceDue * TAX_RATE;

}

int main()

{

Invoice inv1;

Invoice inv2;

Invoice inv3;

inv1.setInvoiceNUMBER(1244);

inv1.setCustomer("Brown");

inv1.setBalanceDue(1000.00);

inv1.setTax();

inv1.displayInvoice();

inv2.setInvoiceNUMBER(77777);

inv2.setCustomer("Jenkins");

inv2.setBalanceDue(2000.00);

inv2.setTax();

inv2.displayInvoice();

inv3.setInvoiceNUMBER(888);

inv3.setCustomer("Russell");

inv3.setBalanceDue(3000.00);

inv3.setTax();

inv3.displayInvoice();

system("pause");

return 0;

}

Kindly check the output image below.

5 0

3 years ago

In his work for a new company, Byron found a flower material that he could use to manufacture dresses. In his career, Byron is m

bekas [8.4K]

I guess the correct answer is plant system pathway

Thе plant systеms pathway includеs οccupatiοns rеlatеd tο grοwing fοοd, fееd, and fibеr crοps, and thе study οf plantsand thеir grοwth tο hеlp prοducеrs mееt cοnsumеr dеmand whilе cοnsеrving natural rеsοurcеs and maintaining thе еnvirοnmеnt.

In his work for a new company, Byron found a flower material that he could use to manufacture dresses. In his career, Byron is most likely focused on the plant system pathway.

5 0

3 years ago

Read 2 more answers

How can you insert an image file in your word document?

Margarita [4]

Click the insert tab, it'll show a pop up window. Go to the location of where your picture may be. Double click on the photo, and it will be inserted into the word document.

6 0

3 years ago