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C++ (classes quiz) First Lecture

An illustration of a computer screen displaying C++ code, with visual elements representing classes and objects, vibrant colors, educational theme

C++ Class Fundamentals Quiz

Test your knowledge of C++ class concepts with our engaging quiz! From defining objects to understanding member functions, this quiz covers essential topics to help solidify your programming skills.

Features:

11 challenging questions
Multiple choice format
Immediate feedback on your answers

11 Questions3 MinutesCreated by CodingNinja247

Name:

Q1/ How can you define the object of (Male) in the class (Human)?

Human male;

Human.male;

Male Human;

Male.human;

Q2/ It has been defined a variable of (name) inside the class (Human) and define an object (Male) so how can you enter the name inside the (Male) object

Cin << male.name;

Cin >> male.name;

Cin>> name.male;

Cin << name.male;

Q3/ Only one class can be defined in a program

Ture

False

Q4/ Only one object can be defined in each class

True

False

Q5/ By default setting the member function inside class without setting the identificer would be considered inside the

Private :

Public:

Protected:

None of these

Q6/ determine the output of the function below

#include<iostream.h>

class Empty {};

int main()

{

cout << sizeof(Empty);

return 0;

}

Non zero

Zero

Compile Error

None of above

Q7/ The error in this program is due to

#include <stdio.h> 
  
class Test { 
    int x; // x is private 
}; 
int main() 
{ 
  Test t; 
  t.x = 20; 
  getchar(); 
  return 0; 
} 

X is private

X is public

X is integer

None of above

Q8/ In the following program there is an error in compiling what is the error ???

class Rectangle {
int width, height;
public:
void set_values (int x, int y) {
width = x;
height = y;
}
int area()

{

return width*height;

}

int main () {
Rectangle rect;
rect.set_values (3,4);
cout << "Area of Rectangle: " << rect.area()<<endl;
return 0;
}

Return width*height

Int width, height;

}

};

Q9/ In the following program can the main function access the variable member redius ????

#include<iostream> 
using namespace std;   
class Circle 
{ 
    public:  
        double radius; 
          
        double  compute_area() 
        { 
            return 3.14*radius*radius; 
        }     
};   
 
int main() 
{ 
    Circle obj; 
    obj.radius = 5.5; 
    cout << "Radius is: " << obj.radius << "\n"; 
    cout << "Area is: " << obj.compute_area(); 
    return 0; 
} 

Yes

Q10/

Q9/ In the following program can the main function access the variable member redius ????

#include<iostream> 
using namespace std;   
class Circle 
{
 double radius; 
    public:   
        double  compute_area() 
        { 
            return 3.14*radius*radius; 
        }     
};   
 
int main() 
{ 
    Circle obj; 
    obj.radius = 5.5; 
    cout << "Radius is: " << obj.radius << "\n"; 
    cout << "Area is: " << obj.compute_area(); 
    return 0; 
} 

Yes

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