Answer:
Following are the code to the given question:
#include <iostream>//header file
using namespace std;
class Window //defining a class Window
{
private:
int width, height;//defining integer variable
public:
friend ostream& operator << (ostream& stm, Window& width)//defining a friend function that takes two parameters
{
return stm<<"a ("<<width.width<<" x "<<width.height<<") window"; //use return keyword that return its values
}
Window(int width, int height): width(width), height(height)//defining parameterized constructor that inherit width and height in its parameters
{}
};
int main() //Main method
{
Window w(80,90);//calling class constructor
cout<<w;//print object value
return 0;
}
Output:
a (80 x 90) window
Explanation:
In the above code, a class "Window" is defined that uses a friend function "ostream& operator" is declared that uses the "ostrea&" as a data type to hold two-variable "stm and w" in its parameter, and declared the parameterized constructor to hold value by inheriting width and height in its parameters.
Inside the main method, a class object is created that calls the constructor and uses the print method to print object value.
Istream& operator>> (istream& input, Example& example)
{
// Extract your data from input stream here
return input;
}
This is for Python
name = 'Joe'
print(f'My name is {name}')
This is called string formatting. Using f before the text. This is another way
name = 'Joe'
print('My name is', Joe)
But I found that string formatting is cleaner and much more useful
The question is vague, but answer B is absolutely incorrect so by default choice A is correct ... "good" is hard to define and your vision can be corrected by glasses allowing you to drive, etc.
