Programming in Modern C++ Week 3 Assignment Answers
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Programming in Modern C++ Week 3 Assignment Answers
Programming in Modern C++ Week 3 Assignment Answers (July-Dec 2024)
Q1.Identify the set of all the methods that change the state of the class Rectangle objects. a) setWidth(), setHeight(), display() b) setWidth(), setHeight(), doubleSize(), increase Height() c) setWidth(), setHeight(), doubleSize(), increaseWidth(), increaseHeight() d) setWidth(), setHeight(), increaseWidth(), increaseHeight()
Answer: b) setWidth(), setHeight(), doubleSize(), increase Height()
These are Programming in Modern C++ Week 3 Assignment Answers
Q3. Fill in the blanks with proper access specifiers so that member b can be accessed from outside of the class but member a cannot be accessed. a) public, public b) private, public c) public, private d) private, private
Answer:b) private, public
Q4.What will be the output? a) memberVar memberVar 6, globalVar = 7 1, globalVar = 8 b) memberVar 1, globalVar = 7 memberVar = 1, globalVar = 0 c) memberVar 1, globalVar = 8 memberVar = 1, globalVar = 0 d) memberVar memberVar 1, globalVar = 7 2, globalVar = 0
These are Programming in Modern C++ Week 3 Assignment Answers
Q7. What will be the output/error? a) 101, Sedan b) 202, SUV c) Compiler error at LINE-1: Car:: Car() cannot be private d) Compiler error at LINE-2: lvalue required as left operand of assignment
Answer: b) 202, SUV
Q8. What will be the output/error? a) ctor c-ctor ctor c-ctor b) ctor c-ctor ctor c-assign c) ctor c-ctor ctor c-ctor c-assign d) ctor c-assign ctor c-assign
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Quiz
Q1. Consider the following program. Which function call/s will generate error/s? a) LINE-1 b) LINE-2 c) LINE-3 d) LINE-4
Answer: a) LINE-1
Q2. Consider the following program. What will be the output /error? a) Default b) Parameterized c) Default Parameterized d) Compilation error: call of overload ‘Check()’ is ambiguous
Answer: d) Compilation error: call of overload ‘Check()’ is ambiguous
Q3. Consider the following code segment. What will be the output /error? a) 1 9 b) 9 1 c) Compilation error: constructor is private d) Compilation error: no default constructor
Answer: c) Compilation error: constructor is private
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These are Programming in Modern C++ Week 3 Assignment Answers
Q4. Consider the following code segment. What will be the output/error? a) a, c b) o, k c) Compilation Error: private data members are inaccessible d) Compilation Error: lvalue required as left operand of assignment
Answer: d) Compilation Error: lvalue required as left operand of assignment
Q5. Consider the following code segment. What will be the output? a) 2 13 4 1 4 3 2 b) 2 1 3 4 4 3 1 2 с) 1 2 3 4 1 4 3 2 d) 1 2 3 4 4 3 2 1
Answer: a) 2 13 4 1 4 3 2
Q6. Consider the following code segment. What will be the output? a) 1, 11 0, 10 b) 1, 11 0, 12 c) 1, 12 1, 11 d) 1, 12 0,11
Answer: c) 1, 12 1, 11
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These are Programming in Modern C++ Week 3 Assignment Answers
Q7. Consider the following code segment. Fill in the blank at LINE-1 such that the output is 10 : Ram : 86. a) marks++ b) this->marks++ c) this.marks++ d) this->(++marks)
Answer:
Q8. Consider the following code segment. What will be the output /error? a) myClass(double) myClass() myClass(double) myClass(myClass&) 2.3 2.3 1.2 b) myClass(double) myClass(double) myClass(myClass&) 2.3 2.3 1.2 c) myClass(double) myClass() myClass(double) myClass (myClass&) 2.3 2.3 0.0 1.2 d) Compilation error: data members are private
Answer: a), b) a) myClass(double) myClass() myClass(double) myClass(myClass&) 2.3 2.3 1.2 b) myClass(double) myClass(double) myClass(myClass&) 2.3 2.3 1.2
Q9. Consider the following code segment. Fill in the blank at LINE-1 such that the output is 012. а) *у, *z, *x b) *х, *у, *z с) *у, *x, *z d) *z, *x, *у
Answer: с) *у, *x, *z
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Coding Answers
Question 1
Consider the program below. • Fill in the blank at LINE-1 to complete the parameterized constructor. • Fill in the blank at LINE-2 to complete the copy constructor. • Fill in the blank at LINE-3 to complete the appropriate function header. The program must satisfy the given test cases.
Solution:
#include<iostream>
#include<cmath>
using namespace std;
class Complex_num{
const int x, y;
public:
Complex_num(int _x = 0, int _y = 0) : x(_x), y(_y) {}
Complex_num(const Complex_num& c) : x(c.x), y(c.y) {}
Complex_num addition(const Complex_num& c) {
return Complex_num(x + c.x, y + c.y);
}
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Question 2
Consider the following program. • Fill in the blank at LINE-1 with the appropriate constructor statement. • Fill in the blank at LINE-2 with the appropriate destructor statement so that the dynamic memory allocated in the constructor can be properly deleted. The program must satisfy the sample input and output.
#include<iostream>
using namespace std;
class CharArray {
char *arr;
int size;
public:
CharArray(int n) : size(n), arr(new char[n]) {}
~CharArray() { delete[] arr; }
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Question 3
Consider the following program. • Fill in the blanks at LINE-1 to declare the data member z. • Fill in the blanks at LINE-2 to complete the change() function header. • Fill in the blanks at LINE-3 to complete the print() function header. The program must satisfy the sample input and output.
Solution:
#include<iostream>
using namespace std;
class Constant {
int x, y;
mutable int z;
public:
Constant(int _x, int _y) : x(_x), y(_y) {}
void change() const { z = x * y; }
void print() const {
cout << "x = " << x << ", y = " << y << ", z = " << z;
}
};
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These are Programming in Modern C++ Week 3 Assignment Answers
These are Programming in Modern C++ Week 3 Assignment Answers
Coding Answers
Question 1 Consider the following program. Fill in the blanks as per the instructions given below: • Complete two constructor statements at LINE-1 and LINE-2, • Complete the return statement at LINE-3 to calculate the manhattan distance between two points, such that it will satisfy the given test cases.
These are Programming in Modern C++ Week 3 Assignment Answers
Question 2 Consider the following program. Fill in the blanks as per the instructions given below. • at LINE-1 with constructor definition, • at LINE-2 with appropriate statement to deallocate array memory such that it will satisfy the given test cases.
Solution:
#include<iostream>
using namespace std;
class Array{
int *arr;
int size;
public:
Array(int n) : size(n), arr(new int[size]) {} //LINE-1
~Array(){ delete[] arr; } //LINE-2
These are Programming in Modern C++ Week 3 Assignment Answers
Question 3 Consider the following program. Fill in the blanks at LINE-1, LINE-2 and LINE-3 with appropriate keywords such that it will satisfy the given test cases.
Solution:
#include<iostream>
using namespace std;
class Student{
const int sid;
string sname;
mutable int marks; //LINE-1
public:
Student(int a, string b, int c) : sid(a), sname(b), marks(c) {}
void updateMarks(int x) const { marks += x; } //LINE-2
void print() const { //LINE-3
These are Programming in Modern C++ Week 3 Assignment Answers
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These are Programming in Modern C++ Week 3 Assignment Answers
Quiz
Q1. Consider the following program. Which line/s will generate an error? a) LINE-1 b) LINE-2 c) LINE-3 d) LINE-4
Answer: a) LINE-1
Q2. Consider the following class. Fill in the blanks with proper access specifiers so that member y can be accessed from outside of the class but member x cannot be accessed. a) public, public b) public, private c) private, public d) private, private
Answer: c) private, public
These are Programming in Modern C++ Week 3 Assignment Answers
Q3. Consider the following code segment. What will be the output/error? a) 1st b) 2nd c) 1st 2nd d) Compilation Error : call of overloaded ‘myClass()’ is ambiguous
Answer: d) Compilation Error : call of overloaded ‘myClass()’ is ambiguous
Q4. Consider the following code segment. What will be the output? a) 1 2 b) 3 1 c) 2 3 d) 3 4
These are Programming in Modern C++ Week 3 Assignment Answers
Q5. Consider the following code segment. Fill in the blank at LINE-1 so that the program will print fun is coding. a) *lstr, *mstr, *fstr b) *mstr, *fstr, *lstr c) *lstr, *fstr, *mstr d) *fstr, *lstr, *mstr
Answer: a) *lstr, *mstr, *fstr
Q6. Consider the following code segment. What will be the output? a) 27 b) 00 c) Compilation error : no default constructor d) Compilation error : constructor is private
Answer: d) Compilation error : constructor is private
These are Programming in Modern C++ Week 3 Assignment Answers
Q7. Consider the following code segment. What will be the output/error? a) 10 20 b) 20 50 c) Compilation Error : 1value required as left operand of assignment d) Compilation Error : private data members are inaccessible
Answer: c) Compilation Error : 1value required as left operand of assignment
These are Programming in Modern C++ Week 3 Assignment Answers
Q8. Consider the following code segment. What will be the output/error? a) 1st b) 2nd c) 1st 2nd d) Compilation error: conversion from ‘int’ to ‘Test’ is ambiguous
Answer: d) Compilation error: conversion from ‘int’ to ‘Test’ is ambiguous
These are Programming in Modern C++ Week 3 Assignment Answers
Q9. Consider the following code segment. Fill in the blank at LINE-1 such that the program will print 5 a) int b) const int c) mutable int d) int mutable
Answer: c, d
These are Programming in Modern C++ Week 3 Assignment Answers
Coding Answers
Question 1
Consider the program below. Fill in the blanks at LINE-1, LINE-2, and LINE-3 with appropriate keywords such that the program must satisfy the given test cases.
Solution:
#include<iostream>
using namespace std;
class Employee{
const int id;
string name;
mutable int salary; //LINE-1
public:
Employee(int a, string b, int c) : id(a), name(b), salary(c) {}
void updateSalary(int x) const { salary += x; } //LINE-2
void print() const{ //LINE-3
These are Programming in Modern C++ Week 3 Assignment Answers
Question 2
Consider the following program. • Fill in the blank at LINE-1 with the appropriate initializer statement for the parameterized constructor, • Fill in the blank at LINE-2 with the appropriate statement which deletes the dynamically allocated memory to data member arr The program must satisfy the sample input and output.
Solution:
#include<iostream>
using namespace std;
class Array{
char *arr;
int size;
public:
Array(int n) : size(n), arr(new char[n]){} //LINE-1
~Array(){ delete [] arr; } //LINE-2
These are Programming in Modern C++ Week 3 Assignment Answers
Question 3
Consider the program below. • Fill in the blank at LINE-1 to complete parameterized constructor • Fill in the blank at LINE-2 to complete copy constructor • Fill in the blank at LINE-3 to complete return statement The area( ) evaluates the area of the given right-angled triangle. The program must satisfy the given test cases.
Solution:
#include <iostream>
using namespace std;
class triangle {
const int *_base, *_height;
public:
triangle(int b, int h) : _base(new int(b)), _height(new int(h)) { } // Line-1
// LINE-1: Complete Constructor definition
~triangle() {
delete _base,_height; // Line-2
// LINE-2: Complete destructor to delete both data pointers
}
double area();
};
double triangle::area() { // LINE-3: Complete function header
return 0.5 * *_base * *_height;
}
These are Programming in Modern C++ Week 3 Assignment Answers
