Question

Below is some code for a rectangle class that needs to be completed. Add member function declarations to the class declaration and member function definitions below the declaration. For the accessor functions, you can add the definitions directly into the class declaration. The goal is to code the class so that it works wthout changing the main program

#include <iostream>
using namespace std;

// rectangle has a vertical height and horizontal width
// The class below is a rectangle. It has two private
// data members: height and width.
// TODO: Complete the class declaration and definition.
class rectangle {
public:
// TODO: declare a default constructor
// Make the height and width = 1.
  
// TODO: declare member function void add
// @param int height, int width

// TODO: delcare member function void set
// @param int height, int width
  
// TODO: declare member function void draw
  
// TODO: define accessor for width
  
// TODO: define accessor for height
  
private:
int width;
int height;
};

// TODO: define the default constructor that
// sets height and width to 1.
rectangle::rectangle()
{

}

// TODO: Implement add to increment the length
void rectangle::add(int h, int w)
{

}

// TODO: Implement set to overwrite the data members
void rectangle::set(int h, int w)
{

}

// TODO: Implement draw to draw a rectangle using '*' characters
void rectangle::draw()
{
  
  
}

// TODO: Don't forget to define getWidth and getHeight

int main()
{
// Declare 2 rectangles
rectangle r1, r2;
  
// Print the unit rectangle
cout << "r1 is " << r1.getHeight() << " x " << r1.getWidth() << endl;
  
// Set, print dimensions and draw
r1.set(4, 3);
cout << "r1 is " << r1.getHeight() << " x " << r1.getWidth() << endl;
r1.draw();
  
// Assign, increment, print dimensions and draw
r2 = r1;
r2.add(3, 4);
cout << "r2 is " << r2.getHeight() << " x " << r2.getWidth() << endl;
r2.draw();
  
return 0;
}

Answer 1

#include <iostream>
using namespace std;

// rectangle has a vertical height and horizontal width
// The class below is a rectangle. It has two private
// data members: height and width.
// TODO: Complete the class declaration and definition.
class rectangle {
public:
// TODO: declare a default constructor
// Make the height and width = 1.
rectangle();
rectangle(int,int);
// TODO: declare member function void add
// @param int height, int width
void add(int,int);

// TODO: delcare member function void set
// @param int height, int width
void set(int,int);
// TODO: declare member function void draw
void draw();
// TODO: define accessor for width
int getWidth(){
return width;
}
// TODO: define accessor for height
int getHeight(){
return height;
}
private:
int width;
int height;
};

// TODO: define the default constructor that
// sets height and width to 1.
rectangle::rectangle()
{
   width=1;
   height=1;
}

// TODO: Implement add to increment the length
void rectangle::add(int h, int w)
{  
   height+=h;
   width+=w;
}

// TODO: Implement set to overwrite the data members
void rectangle::set(int h, int w)
{
   height=h;
   width=w;
}

// TODO: Implement draw to draw a rectangle using '*' characters
void rectangle::draw()
{
for(int i=0;i<height;i++){
   for(int j=0;j<width;j++)
       cout<<"*";
   cout<<endl;
}
  
}

// TODO: Don't forget to define getWidth and getHeight

int main()
{
// Declare 2 rectangles
rectangle r1, r2;
  
// Print the unit rectangle
cout << "r1 is " << r1.getHeight() << " x " << r1.getWidth() << endl;
  
// Set, print dimensions and draw
r1.set(4, 3);
cout << "r1 is " << r1.getHeight() << " x " << r1.getWidth() << endl;
r1.draw();
  
// Assign, increment, print dimensions and draw
r2 = r1;
r2.add(3, 4);
cout << "r2 is " << r2.getHeight() << " x " << r2.getWidth() << endl;
r2.draw();
  
return 0;
}

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