#include
#include
using namespace std;
class Point
{
private:
 double x;
 double y;
public:
 friend ostream &operator<<(ostream &stream, Point ob);
 friend istream &operator>>(istream &stream, Point &ob);
 Point()
 {
  this->x = 0;
  this->y = 0;
 }
 Point(double x, double y)
 {
  this->x = x;
  this->y = y;
 }
 void Draw()
 {
  cout<<"\nNhap Toa Do x: ";
  cin>>this->x;
  cout<<"\nNhap Toa Do y: ";
  cin>>this->y;
 }
 void Show()
 {
  cout<<"("<<","<<")";
 }
 void Move(double x, double y)
 {
  this->x += x;
  this->y += y;
 }
 void SetX(double x)
 {
  this->x = x;
 }
 void SetY(double y)
 {
  this->y = y;
 }
 void SetAll(double x, double y)
 {
  this->x = x;
  this->y = y;
 }
 double GetX()
 {
  return this->x;
 }
 double GetY()
 {
  return this->y;
 }
};
ostream &operator<<(ostream &stream, Point P)
{
 stream<<"("<<<","<<<")";
 return stream;
}
istream &operator>>(istream &stream, Point &P)
{
  cout<<"\nNhap Toa Do x: ";
  cin>>P.x;
  cout<<"\nNhap Toa Do y: ";
  cin>>P.y;
  return stream;
}
int main()
{
 cout<<"--------------------- CHUONG TRINH THAO TAC TREN LOP POINT ---------------------\n";
 cout<<"\n----------------------- Programming By Edward_Thien ------------------------\n\n";
 double x, y;
 Point A, C;
 Point B(10, 20);
 cout<<"\n\n--------- TOA DO 2 DIEM A &B SAU KHI KHOI TAO ----------\n";
 cout<<"Diem A: ";
 A.Show();
 cout<<"\t Diem B: ";
 B.Show();
 A.Draw();
 B.Draw();
 cout<<"\n\n--------- TOA DO 2 DIEM A &B SAU KHI THUC HIEN PHUONG THUC DRAW ----------\n";
 cout<<"Diem A: ";
 A.Show();
 cout<<"\t Diem B: ";
 B.Show();
 A.Move(4,5);
 B.Move(5,4);
 
 cout<<"\n\n--------- TOA DO 2 DIEM A &B SAU KHI THUC HIEN PHUONG THUC MOVE ----------\n";
 cout<<"Sau Khi Move(4,5). Diem A: ";
 A.Show();
 cout<<"\tSau Khi Move(5,4). Diem B: ";
 B.Show();
 cout<<"\n\n--------------TRUY VAN TOA DO CAC DIEM-------------------\n";
 cout<<"\nToa Do x Cua A: "<<<", Toa Do y Cua A: "<
 cout<<"\nToa Do x Cua B: "<<<", Toa Do y Cua B: "<
 cout<<"\n\n--------------CAP NHAT LAI TOA DO CAC DIEM-------------------";
 cout<<"\nNhap Toa Do x Moi Cho A: ";
 cin>>x;
 A.SetX(x);
 cout<<"\nDa Sua Lai Toa Do x Cua A: ";
 cout<<"Diem A: ";
 A.Show();
 cout<<"\nNhap Toa Do y Moi Cho A: ";
 cin>>y;
 A.SetY(y);
 cout<<"\nDa Sua Lai Toa Do y Cua A: ";
 cout<<"Diem A: ";
 A.Show();
 cout<<"\nNhap Toa Do x Moi Cho B: ";
 cin>>x;
 cout<<"\nNhap Toa Do y Moi Cho B: ";
 cin>>y;
 B.SetAll(x, y);
 cout<<"\nDa Sua Lai Toa Do Cua B: ";
 cout<<"Diem B: ";
 B.Show();
 cout<<"\n\n----------- Overload Toan Tu << & >> -------------\n";
 cout<<"Nhap 1 Diem:\n";
 cin>>C;
 cout<<"\nDiem Vua Nhap: ";
 cout<
 cout<<"\n\n------------------------------ KET THUC -----------------------------------\n";
 _getch();
 return 0;
}