Question 8: Questions 8 - 12 are based on the following code. Now, this code results in a compile error (where it's marked "here"). Why? class Fraction { private: int numerator; int denominator; public: Fraction(int n, int d) { numerator = n; denominator = d; } void display() { cout << numerator << "/" << denominator << endl; } }; int main() { Fraction f; // <-- here return 0; } Group of answer choices There is no constructor defined Copy constructor is undefined Default constructor is undefined Constructor is defined as public Question 9: Find an incorrect definition of getter/setter for Fraction. Group of answer choices void setNumerator(int n) { numerator = n; } void getNumerator() { return numerator; } void setDenominator(int d) { denominator = d; } int getDenominator() { return denominator; } Question 10: What would be the printout of the following code segment? Fraction f(2, 3); f.display(); Group of answer choices 23 2 3 2,3 2/3 Question 11: Suppose I added the following copy constructor to Fraction. Which statement will invoke this method? Fraction(const Fraction& b) { denominator = b.denominator; numerator = b.numerator; } Group of answer choices Fraction f(2, 3); Fraction g = f; Fraction h; Fraction* j = nullptr; Question 12: Suppose I added the following overloaded operator method to Fraction. Which statement will invoke this method? Fraction operator+(const Fraction& b) { Fraction o; o.denominator = denominator * b.denominator; o.numerator = numerator * b.denominator + b.numerator * denominator; return o; } Group of answer choices Fraction f(2, 3); Fraction g = f; Fraction h; Fraction h = f + g;

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question 8:

Questions 8 - 12 are based on the following code. Now, this code results in a compile error (where it's marked "here"). Why?

class Fraction {
private:
int numerator;
int denominator;
public:
Fraction(int n, int d) {
numerator = n;
denominator = d;
}
void display() { cout << numerator << "/" << denominator << endl; }
};
int main() {
Fraction f; // <-- here
return 0;
}

Group of answer choices

There is no constructor defined

Copy constructor is undefined

Default constructor is undefined

Constructor is defined as public

Question 9:

Find an incorrect definition of getter/setter for Fraction.

Group of answer choices

void setNumerator(int n) { numerator = n; }

void getNumerator() { return numerator; }

void setDenominator(int d) { denominator = d; }

int getDenominator() { return denominator; }

Question 10:

What would be the printout of the following code segment?

Fraction f(2, 3);
f.display();

Group of answer choices

2 3

2,3

2/3

Question 11:

Suppose I added the following copy constructor to Fraction. Which statement will invoke this method?

Fraction(const Fraction& b) {
denominator = b.denominator;
numerator = b.numerator;
}

Group of answer choices

Fraction f(2, 3);

Fraction g = f;

Fraction h;

Fraction* j = nullptr;

Question 12:

Suppose I added the following overloaded operator method to Fraction. Which statement will invoke this method?

Fraction operator+(const Fraction& b) {
Fraction o;
o.denominator = denominator * b.denominator;
o.numerator = numerator * b.denominator + b.numerator * denominator;
return o;
}

Group of answer choices

Fraction f(2, 3);

Fraction g = f;

Fraction h;

Fraction h = f + g;

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