NPTEL Programming in Modern C++ Assignment 4 Answers 2022

Are you looking for the Answers to NPTEL Programming in Modern C++ Assignment 4? This article will help you with the answer to the National Programme on Technology Enhanced Learning (NPTEL) Course ” Programming in Modern C++ Assignment 4 “

What is Programming in Modern C++?

There has been a continual debate on which programming language/s to learn, to use. As the latest TIOBE Programming Community Index for August 2021 indicates – C (13%), Python (12%), C++ (7%), Java (10%), and C#(5%) together control nearly half the programming activities worldwide. Further, C Programming Language Family (C, C++, C#, Objective C etc.) dominate more than 25% of activities. Hence, learning C++ is important as one learns about the entire family, about Object-Oriented Programming and gets a solid foundation to also migrate to Java and Python as needed. C++ is the mother of most general purpose of languages. It is multi-paradigm encompassing procedural, object-oriented, generic, and even functional programming. C++ has primarily been the systems language till C++03 which punches efficiency of the code with the efficacy of OOP.

CRITERIA TO GET A CERTIFICATE

Average assignment score = 25% of the average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF THE AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Below you can find the answers for NPTEL Programming in Modern C++ Assignment 4

NPTEL Programming in Modern C++ Assignment 4 Answers:-

Q1. Consider the following program. Fill in the blanks as per the instructions given below:

• at LINE-1 with appropriate declaration so that global operator function can access private data of class Complex,
• at LINE-2 with appropriate operator function header,
• at LINE-3 with appropriate return statement,

Code:-

#include<iostream>
#include<cstring>
using namespace std;

class Complex{
    int re, im;
public:
    Complex(int r, int i) : re(r), im(i){}
    void print(){
        cout << re << " + j" << im;
	}
	
   friend Complex operator+(const Complex &e, int n);		//LINE-1
};

Complex operator+(const Complex &e, int n){	           //LINE-2
    
   return Complex(e.re+n,e.im);               //LINE-3
}

Q2. Consider the following program. Fill in the blanks as per the instructions given below:

• at LINE-1 with appropriate keyword to declare the Database pointer variable,
• at LINE-2 to complete the header for function getInstance(int i),
• at LINE-3 with appropriate keyword to complete ins variable initialization

Code:-

#include<iostream>
using namespace std;

class Database{
    int data;
    static Database *ins;                    //LINE-1
    Database(int i) : data(i) {}
public:
    int get(){ return data;	}
     static Database* getInstance(int i){	    //LINE-2
        if(!ins)
            ins = new Database(i);
        return ins;
    }
};

Database* Database::ins = 0; // LINE-3

???? Next Week Answers: Assignment 05 ????

Q3. Consider the following program. Fill in the blanks as per the instructions given below:

• at LINE-1 with appropriate statement so that global operator function can access private members,
• at LINE-2 with appropriate operator function header,
• at LINE-3 with appropriate operator function header,
• at LINE-4 with appropriate operator function header

Code:-

   friend istream& operator>>(istream& is, Point& p);        //LINE-1
	
    Point& operator++(){                                 //LINE-2
        ++x;
        return *this;
    }
    Point operator++(int){                            //LINE-3
        Point p(x,y);
        ++y;
        return p;
    }
};  // End of class Point


istream& operator>>(istream& is, Point& p){              //LINE-4
    is >> p.x >> p.y;
    return is;
}

For other courses answers:- Visit

For Internship and job updates:- Visit