Question: Question 7 (a) When a class member is defined outside the class, which operator can be used to as……

Question 7 (a) When a class member is defined outside the class, which operator can be used to associate the function definition to a particular class? [2 marks] (b) How do the calls of the functions f and h affect the states of the objects p and q of class Point in each of the examples. Explain your answers. i. void f (Point p, Point q) p·x = 42; [2 marks] ii. void h (Point *p, Point *q) t Px42; [2 marks] (c) Write a class for an object called Job that has two integer variables startingTime and completionTime. Job should also have a default constructor and two pub- lic functions getProcessingTime and reschedule with the signatures: int getProcessingTime); void reschedule(int newStartingTime, int newCompletionTime); Function getProcessingTime returns the processing time as the difference between completionTime and startingTime. Function reschedule changes the values of startingTime and completionTime, respectively, to newStartingTime and newCompletionTime when the new com pletion time is greater than or equal to the new starting time. Otherwise, no action is performed The default constructor initialises both startingTime and completionTime to 0 Assuming that the C++ code has been declared separately, write the C++ body code for these functions and the default constructor. [6 marks]

Question 7 (a) When a class member is defined outside the class, which operator can be used to associate the function definition to a particular class? [2 marks] (b) How do the calls of the functions f and h affect the states of the objects p and q of class Point in each of the examples. Explain your answers. i. void f (Point p, Point q) p·x = 42; [2 marks] ii. void h (Point *p, Point *q) t Px42; [2 marks] (c) Write a class for an object called Job that has two integer variables startingTime and completionTime. Job should also have a default constructor and two pub- lic functions getProcessingTime and reschedule with the signatures: int getProcessingTime); void reschedule(int newStartingTime, int newCompletionTime); Function getProcessingTime returns the processing time as the difference between completionTime and startingTime. Function reschedule changes the values of startingTime and completionTime, respectively, to newStartingTime and newCompletionTime when the new com pletion time is greater than or equal to the new starting time. Otherwise, no action is performed The default constructor initialises both startingTime and completionTime to 0 Assuming that the C++ code has been declared separately, write the C++ body code for these functions and the default constructor. [6 marks]

Expert Answer

answers

(a) In c++ you have two options for defining member( i.e. variables and functions)

Don't use plagiarized sources. Get Your Custom Essay on
Question: Question 7 (a) When a class member is defined outside the class, which operator can be used to as……
Get an essay WRITTEN FOR YOU, Plagiarism free, and by an EXPERT!
Order Essay

– you can define it in the class

– you can define it outside the class

example(1) : for members defined inside the class.

class MyClass {
   public:
    char firstName[10] = "smith";
   char lastName[10]="james";
   
      char* getFullName(void) {
         return firstName<<lastName;
      }
};

example(2) : for members defined out side the class.

char* MyClass::getFullName(void) {
         return firstName<<lastName;
      }

now the main answer to your question scope resolution operator ( :: )  is used to associate  getFullName() to the class Myclass.

(b) (i)

In function f(..) you are passing two parameters of type Point.

after statement p.x =42 if you print value of p.x you are going to get 42.

But in the second statement you are assing value q to p.

by using p=q , now you have overriden the value p.x=42.

if you print now p.x after p=q, it will print some garbage value.

(ii) fund h(..) will have the same impact on the state of p and q as in the (i)

the only difference is you are passing pointer in h() pointer of type Point,

pointer can hold the address of another variable.

when you say p->x=42, now again you are assing vlaue 42 to x.

but in the next statement p=q again, value of x is overriden.

(c)

#include <iostream>

using namespace std;

class Job
{
private:
// startTime declaration
int startTime;
// startTime completionTime
int completionTime;
public:
// constructor is declared to reset startTime and completionTime
Job(){
startTime=0;
completionTime=0;
}
// it will return ProcessingTime
int getProcessingTime(){
return completionTime-startTime;
}

// for setting value of startTime and completionTime
void reschedule(int newStartingTime, int newCompletionTime){
if(newCompletionTime>=newStartingTime){
startTime = newStartingTime;
completionTime = newCompletionTime;
}
}

void printValue(){
cout<<“start Time : “<<startTime<<endl;
cout<<“end Time : “<<completionTime<<endl;
cout<<“processing time : “<<getProcessingTime();
}

};
int main()
{
job ();
Job j;
j.reschedule(9,15);
j.printValue();

return 0;
}

Top Grade Homework
Order NOW For a 10% Discount!
Pages (550 words)
Approximate price: -

Why Work with Us

Top Quality and Well-Researched Papers

We always make sure that writers follow all your instructions precisely. You can choose your academic level: high school, college/university or professional, and we will assign a writer who has a respective degree.

Professional and Experienced Academic Writers

We have a team of professional writers with experience in academic and business writing. Many are native speakers and able to perform any task for which you need help.

Free Unlimited Revisions

If you think we missed something, send your order for a free revision. You have 10 days to submit the order for review after you have received the final document. You can do this yourself after logging into your personal account or by contacting our support.

Prompt Delivery and 100% Money-Back-Guarantee

All papers are always delivered on time. In case we need more time to master your paper, we may contact you regarding the deadline extension. In case you cannot provide us with more time, a 100% refund is guaranteed.

Original & Confidential

We use several writing tools checks to ensure that all documents you receive are free from plagiarism. Our editors carefully review all quotations in the text. We also promise maximum confidentiality in all of our services.

24/7 Customer Support

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Try it now!

Calculate the price of your order

Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

No need to work on your paper at night. Sleep tight, we will cover your back. We offer all kinds of writing services.

Essays

Essay Writing Service

No matter what kind of academic paper you need and how urgent you need it, you are welcome to choose your academic level and the type of your paper at an affordable price. We take care of all your paper needs and give a 24/7 customer care support system.

Admissions

Admission Essays & Business Writing Help

An admission essay is an essay or other written statement by a candidate, often a potential student enrolling in a college, university, or graduate school. You can be rest assurred that through our service we will write the best admission essay for you.

Reviews

Editing Support

Our academic writers and editors make the necessary changes to your paper so that it is polished. We also format your document by correctly quoting the sources and creating reference lists in the formats APA, Harvard, MLA, Chicago / Turabian.

Reviews

Revision Support

If you think your paper could be improved, you can request a review. In this case, your paper will be checked by the writer or assigned to an editor. You can use this option as many times as you see fit. This is free because we want you to be completely satisfied with the service offered.

× Contact Live Agents