Question

C++ Practice: Answer Whichever you can & it'll help a lot. Thank you!

Question 1. Implement the constructors and member function of each of the classes (Marks 15)

class Fraction{

private:

int numerator;

int denominator;

public:

Fraction(int, int);

float fractionValue();//determines the value of numerator/denominator

};

class Problem{

private:

Fraction f[3];

public:

Problem(int, int, int, int, int, int);

Fraction largestFraction();//Returns the fraction having largest fraction value

};

Question 2: In the following Inheritance problem

#include<iostream>

#include<string>

using namespace std;

class Animal{

protected:

int height;

int age;

double weight;

public:

Animal(int , int , double);

void print()const;

};

class Dog: private Animal{

protected :

string dogType;

public:

Dog(int , int, double, string);

void print()const;

};

class GermanShephard: private Dog{

private:

string name;

public:

GermanShephard(int , int , double , string , string);

void print()const;

};

int main(){

GermanShephard ms(61, 5, 30.5, "pet", "Coco");

return 0;

}

a. Complete the implementation file of each classes (Marks 15)

b. What is the sequence of call of constructors and destructors when objects ms is called

(Marks 5)

Question 3: In the following problem

#include<iostream>

using namespace std;

class Point{

private:

int x;

int y;

public:

Point();

void print()const;

void setf(int, int);

};

class Line{

private:

Point ps;

Point pe;

public:

Line();

void print()const;

void setf(int, int, int, int);

};

class Rectangle{

private:

Line length[2];

Line width[2];

public:

Rectangle();

void print()const;

void setf(int, int, int, int, int, int, int, int);

};

int main(){

Rectangle r1;

r1.setf(3,4,5,6, 7, 8, 9, 10);

r1.print();

system("pause");

return 0;

}

a. Write implementation of the functions of Rectangle, Line and Point class(Marks 15)

b. What is the call of constructor of Point, Line and Rectangle when r1 is created? What is

the call of destructor of Point, Line and Rectangle when r1 goes out of scope?(Marks 10)

Answer 1

class Fraction{

        private:
        int numerator;
        int denominator;

        public:

        Fraction(int n, int d) {
                numerator = n;
                denominator = d;
        }
        
        // this default constructor is required else, 
        // Problem class code will not even compile.
        Fraction() {
                numerator = 0;
                denominator = 1;
        }

        float fractionValue() {
                return numerator/ (float) denominator;
        }
        
        void setNumerator(int n) {
                numerator = n;
        }
        
        void setDenominator(int d) {
                denominator = d;
        }
};

class Problem{

        private:
        Fraction f[3];

        public:
        Problem(int n1, int d1, int n2, int d2, int n3, int d3) {
                f[0].setNumerator(n1);
                f[0].setDenominator(d1);
                f[1].setNumerator(n2);
                f[1].setDenominator(d2);
                f[2].setNumerator(n3);
                f[2].setDenominator(d3);
        }

        Fraction largestFraction() {
                if(f[0].fractionValue() > f[1].fractionValue()) {
                        
                        if(f[0].fractionValue() > f[2].fractionValue()) {
                                return f[0];
                        } else {
                                return f[2];
                        }
                
                } else {                
                        if(f[1].fractionValue() > f[2].fractionValue()) {
                                return f[1];
                        } else {
                                return f[2];
                        }
                }              
        }

};

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Sir, in the given time i can only solve one question as per HomeworkLib terms and conditions, since each question contains a separate question.. however, i have answered the first question in detail, and implemented each and every function required in that.. let me know if any issues.

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