Answer to Question #174668 in C++ for zain ul abdeen

Question

Create a class named Rectangle. Make 4 2-D points. Create the following function: -

1)Input Function.

2)Area Function. (In this function area will be calculated and returned).

3)IsRectangle (This will return Boolean i.e. if it is a rectangle, it will return true else it will return False)

4)Output Function.

5) Length Function.

6) Height Function.

7) Perimeter Function.

8) Diagonal Function.

Answer 1

#include <iostream>
#include <vector>


using namespace std;
class Rectangle{
private:
	vector<int> points2D;
	//B________C           A: X = points2D[0], Y = points2D[1]
	//|        |		   B: X = points2D[2], Y = points2D[3]
 	//|        |		   C: X = points2D[4], Y = points2D[5]
	//|        |           D: X = points2D[6], Y = points2D[7]
	//|________|
	//A        D
	
public:
	//1)Input Function.
	void Input(){
		for(int i=1;i<=4;i++){
			int x;
			int y;
			cout<<"Enter X"<<i<<": ";
			cin>>x;
			points2D.push_back(x);
			cout<<"Enter Y"<<i<<": ";
			cin>>y;
			points2D.push_back(y);
		}
	
	}
	//2)Area Function. (In this function area will be calculated and returned).
	float Area(){
		return Length()*Height();
	}
	//3)IsRectangle (This will return Boolean i.e. if it is a rectangle, it will return true else it will return False)
	bool IsRectangle(){
		int AB=(pow((float)(points2D[0]-points2D[2]),2)+pow((float)(points2D[1]-points2D[3]),2));
		int BC=(pow((float)(points2D[4]-points2D[2]),2)+pow((float)(points2D[5]-points2D[3]),2));
		int AD=(pow((float)(points2D[0]-points2D[6]),2)+pow((float)(points2D[1]-points2D[7]),2));
		int CD=(pow((float)(points2D[4]-points2D[6]),2)+pow((float)(points2D[5]-points2D[7]),2));
		int ACDiagonal=(pow((float)(points2D[0]-points2D[4]),2)+pow((float)(points2D[1]-points2D[5]),2));
		return ( ACDiagonal == (AB + BC)) && (ACDiagonal == (AD + CD));
	}
	//4)Output Function.
	void Output(){
		if(IsRectangle()){
			cout<<"\nIt is a rectangle.\n";
			cout<<"Area: "<<Area()<<"\n";
			cout<<"Length: "<<Length()<<"\n";
			cout<<"Height: "<<Height()<<"\n";
			cout<<"Perimeter: "<<Perimeter()<<"\n";
			cout<<"Diagonal: "<<Diagonal()<<"\n";
		}else{
			cout<<"\nIt is not a rectangle.\n";
		}
	}
	//5) Length Function.
	float Length(){
		return sqrt(pow((float)(points2D[4]-points2D[2]),2)+pow((float)(points2D[5]-points2D[3]),2));
	}
	//6) Height Function.
	float Height(){
		return sqrt(pow((float)(points2D[0]-points2D[2]),2)+pow((float)(points2D[1]-points2D[3]),2));
	}
	//7) Perimeter Function.
	float Perimeter(){
		return 2*(Length()+Height());
	}
	//8) Diagonal Function.
	float Diagonal(){
		return sqrt(pow((float)(points2D[0]-points2D[4]),2)+pow((float)(points2D[1]-points2D[5]),2));
	}
};


//The start point of the program
int main (){
	Rectangle rectangle;
	rectangle.Input();
	rectangle.Output();


	system("pause");
	return 0;
}