#include<iostream.h>
template <class TYPE>/*類模板1的定義*/
class Point
{
protected: TYPE a,b;/*受保護成員*/
public:Point(){}/*構造函數*/
	   Point(TYPE m,TYPE n)
	   {
	   a=m;
	   b=n;
	   }
	   Point(const Point &other)/*構造函數的重載*/
	   {
		   a=other.a;
		   b=other.b;
	   }
	   void enter()/*輸入坐標值*/
	   {
		   cout<<"please input x,y of the point"<<endl;
		   cin>>a>>b;
	   }
	   void out()/*輸出坐標值*/
	   {
		   cout<<"The point is"<<"("<<a<<","<<b<<")"<<endl;
	   }
};
template <class TYPE>/*類模板2的定義*/
class Line:public Point<TYPE>/*私有繼承模板1*/
{
private:TYPE c,d;
public:
	   Line(){}
	   Line(TYPE A,TYPE B,TYPE C,TYPE D):Point<TYPE>(A,B)/*構造函數成員的初始化*/
	   {
        	c=C;
			d=D;
	   }
	   void enter()
	   {
		   cout<<"please input two x,y of the line"<<endl;
		   cin>>a>>b>>c>>d;
	   }
	   void out()
	   {
		   cout<<"The line is"<<"("<<a<<","<<b<<")"<<"("<<c<<","<<d<<")"<<endl;
	   }
};
int main()/*主函數的實現*/
{
    Point<int> a(0,0);
	a.enter();
	a.out();
	Line<int>b(0,0,0,0);
	b.enter();
	b.out();
	return 1;
}