#include <iostream>
#include <iomanip>
#include <vector>
#include <cstdlib>
#include <ctime>
using namespace std;

const int xSize{20};
const int ySize{20};


class Point
{
public:
  Point(int = 0, int = 0);

  void setPoint(int &x, int &y);

  int getXcoor();
  int getYcoor();

  void plotPoint();
private:
  int xCoor;
  int yCoor;
};


Point::Point(int x, int y)
  :xCoor{x}, yCoor{y}
{
  if(x<0 || x>xSize || y<0 || y>ySize)
    {
      xCoor=0;
      yCoor=0;
      cout << "Invalid input. Defaulting to (0, 0)." << endl;
    }
}

void Point::setPoint(int &x, int &y)
{
  if(x<0 || x>xSize || y<0 || y>ySize)
    {
      xCoor=0;
      yCoor=0;
    }
  else
    {
      xCoor=x;
      yCoor=y;
    }
}

int Point::getXcoor()
{
  return xCoor;
}  

int Point::getYcoor()
{
  return yCoor;
}  

void Point::plotPoint()
{
  for(int j=ySize; j>=0; j--)
    {
      cout << setw(2) << j;
      for(int i=0; i<=xSize; i++)
	{
	  if(j==yCoor && i==xCoor)
	    cout << "* ";
	  else
	    cout << "  ";
	}
      cout << endl;
    }
  cout << "  ";
  for(int i=0; i<=xSize; i++)
    cout << setw(2) << i;
  cout << endl;
}


int main()
{
  Point pt2{12,4};//Please remove this for exercise 5
  pt2.plotPoint();//Please remove this for exercise 5
}